DE19905702C1 - Aluminum alloy for producing extruded or rolled neutron absorbing structural elements for the nuclear industry is prepared by melting a neutron absorber-containing master alloy and a strengthening element-containing alloying component - Google Patents
Aluminum alloy for producing extruded or rolled neutron absorbing structural elements for the nuclear industry is prepared by melting a neutron absorber-containing master alloy and a strengthening element-containing alloying componentInfo
- Publication number
- DE19905702C1 DE19905702C1 DE19905702A DE19905702A DE19905702C1 DE 19905702 C1 DE19905702 C1 DE 19905702C1 DE 19905702 A DE19905702 A DE 19905702A DE 19905702 A DE19905702 A DE 19905702A DE 19905702 C1 DE19905702 C1 DE 19905702C1
- Authority
- DE
- Germany
- Prior art keywords
- alloy
- neutron
- absorbing
- alloying
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 45
- 239000000956 alloy Substances 0.000 title claims abstract description 45
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 10
- 238000005275 alloying Methods 0.000 title claims abstract 12
- 238000005728 strengthening Methods 0.000 title claims abstract 7
- 230000008018 melting Effects 0.000 title abstract 3
- 238000002844 melting Methods 0.000 title abstract 3
- 239000006096 absorbing agent Substances 0.000 title abstract 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052796 boron Inorganic materials 0.000 claims abstract description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 7
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 7
- 239000011777 magnesium Substances 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 3
- 229910052793 cadmium Inorganic materials 0.000 claims abstract description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052738 indium Inorganic materials 0.000 claims abstract description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000011265 semifinished product Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000000155 melt Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 235000010210 aluminium Nutrition 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 description 2
- 241000881711 Acipenser sturio Species 0.000 description 1
- JXOOCQBAIRXOGG-UHFFFAOYSA-N [B].[B].[B].[B].[B].[B].[B].[B].[B].[B].[B].[B].[Al] Chemical class [B].[B].[B].[B].[B].[B].[B].[B].[B].[B].[B].[B].[Al] JXOOCQBAIRXOGG-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- DJPURDPSZFLWGC-UHFFFAOYSA-N alumanylidyneborane Chemical compound [Al]#B DJPURDPSZFLWGC-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229910001325 element alloy Inorganic materials 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F1/00—Shielding characterised by the composition of the materials
- G21F1/02—Selection of uniform shielding materials
- G21F1/08—Metals; Alloys; Cermets, i.e. sintered mixtures of ceramics and metals
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Herstellen einer für technische Anwendungen nutzbaren Aluminiumlegierung mit Indium, Gadolinium, Cadmium und/oder Bor als neutronen absorbierendem Legierungselement und Magnesium, Mangan, Kupfer und/oder Silizium als festigkeitssteigerndem Legie rungselement, wobei eine Aluminium und das eine Legierungs element enthaltende Vorlegierung einerseits und eine das andere Legierungselement aufweisende Legierungskomponente andererseits gemeinsam aufgeschmolzen werden und die Schmelze als Gießling, insbesondere in Form von Bolzen oder Brammen, abgegossen wird, und eine Verwendung der nach diesem Verfahren hergestellten Bolzen oder Brammen.The invention relates to a method for producing a aluminum alloy usable for technical applications Indium, gadolinium, cadmium and / or boron as neutrons absorbent alloy element and magnesium, manganese, Copper and / or silicon as strength-increasing alloy Rungselement, where an aluminum and an alloy element-containing master alloy on the one hand and a other alloy component having alloy element on the other hand, are melted together and the Melt as a casting, in particular in the form of bolts or Slabs being poured off, and a use of after bolts or slabs produced by this method.
Aluminiumlegierungen der genannten Art benötigt man in der Praxis für neutronenabsorbierende Strukturelemente der Nuklearindustrie, z. B. für Umhüllungen von abgebrannten Brennelementen in Transport- und/oder Lagerbehältern. Diese Strukturelemente müssen hauptsächlich drei Anforderungen genügen: Sie müssen ausreichende mechanische Festigkeit zur Gewährleistung der Integrität, z. B. bei mechanischen Stör fallbeanspruchungen, genügen. Ferner müssen sie aus reichende Wärmeleitfähigkeit zur Abfuhr der Nachzerfalls wärme aufweisen. Neben einer gleichförmigen Gefügestruktur und gleichförmigen mechanisch-technologischen Eigenschaften wird außerdem ein ausreichendes Neutronenabsorptions vermögen zur Gewährleistung der Kritikalitätssicherheit unter Normal- und Prüfbedingungen gefordert; die Forderung wird aber nur dann erfüllt, wenn das neutronenabsorbierende Legierungselement hinreichend homogen in der Alumi niumlegierung vorliegt.Aluminum alloys of the type mentioned are required in the Practice for neutron absorbing structural elements of the Nuclear industry, e.g. B. for wrappings of spent Fuel assemblies in transport and / or storage containers. This Structural elements have three main requirements suffice: You must have sufficient mechanical strength to Ensure integrity, e.g. B. with mechanical sturgeon case loads, sufficient. They also have to go out sufficient thermal conductivity to dissipate the decay have heat. In addition to a uniform structure and uniform mechanical-technological properties will also have sufficient neutron absorption assets to ensure security of criticality required under normal and test conditions; the requirement is only fulfilled if the neutron absorbing Alloy element sufficiently homogeneous in the aluminum nium alloy is present.
Bei einem bekannten Verfahren der eingangs genannten Art (WO 84/01 390) wird eine Aluminium und das festigkeits steigernde Legierungselement enthaltende Vorlegierung ein gesetzt und dieser Aluminiumborid beigegeben. Leider ist in der fertigen Aluminiumlegierung bzw. in den Bolzen bzw. Brammen aus dieser Aluminiumlegierung das Bor nicht in der für eine sichere Neutronenabsorption erforderlichen Homo genität verteilt enthalten, weshalb für die Herstellung dieses Materials auch keine deutsche Genehmigung zum Einsatz als Umhüllung von abgebrannten Brennelementen in Transport- und/oder Lagerbehältern ausgesprochen wurde.In a known method of the type mentioned (WO 84/01 390) becomes an aluminum and the strength master alloy containing increasing alloy element set and this aluminum boride added. Unfortunately in the finished aluminum alloy or in the bolts or Do not slab the boron in this aluminum alloy Homo required for safe neutron absorption distributed genity, which is why for the manufacture no German approval for this material Use as wrapping of spent fuel elements in Transport and / or storage containers was pronounced.
Bekannt ist es auch (Patent Abstracts of Japan, C-486, 1987, JP 62-235437 A), eine Aluminiumlegierung mit Bor, Magnesium und Silizium aus den einzelnen Komponenten zu erschmelzen. Ferner ist es bekannt (SU 1 618 774 A1) zunächst eine Aluminium-Bor-Vorlegierung herzustellen, der anschließend kristallisches Silizium zugegeben wird, wobei eine Zerkleinerung der Bor-Alumi niumkristalle erreicht werden soll. Alle diese Maßnahmen haben die Probleme um das Verfahren der eingangs genannten Art einer Lösung bisher nicht näher gebracht.It is also known (Patent Abstracts of Japan, C-486, 1987, JP 62-235437 A), an aluminum alloy with boron, Magnesium and silicon from the individual components too melt. It is also known (SU 1 618 774 A1) to produce an aluminum-boron master alloy first then crystalline silicon is added, crushing the boron alumi nium crystals should be reached. All of these measures have problems with the procedure of the above Kind of a solution not brought up to date.
Der Erfindung liegt das technische Problem zugrunde, das Verfahren der eingangs genannten Art so zu führen, daß neben den anderen geschilderten Forderungen auch die Forde rung nach homogener Verteilung des neutronenabsorbierenden Legierungselementes erfüllt wird. The invention is based on the technical problem that To carry out procedures of the type mentioned in such a way that In addition to the other requirements described, the Forde after homogeneous distribution of the neutron absorbing Alloy element is met.
Hierzu lehrt die Erfindung, daß eine das Aluminium und das neutronenabsorbierende Legierungselement enthaltende Vorle gierung in Form eines Halbzeugs nach DIN EN 575, September 1955, eingesetzt wird und dieser das festigkeitssteigernde Legierungselement als Legierungskomponente beigegeben wird.To this end, the invention teaches that the aluminum and Vorle containing neutron-absorbing alloy element alloy in the form of a semi-finished product according to DIN EN 575, September 1955, and this is used to increase strength Alloy element is added as an alloy component.
Die Erfindung beruht auf der Erkenntnis, daß man mit dem oben geschilderten genannten Verfahren gleichsam nach Tausch von neutronabsorbierendem und festigkeitssteigerndem Legierungselement überraschenderweise eine sehr homogene Verteilung des neutronenabsorbierenden Legierungselementes in der Aluminiumlegierung erreicht, so daß letztere pro blemlos für Zwecke der gleichmäßigen Neutronenabsorption in der Nuklearindustrie eingesetzt werden kann. Vorteilhaft ist die Tatsache, daß die entsprechenden Vorlegierungen handelsüblich sind, weil sie in der Aluminiumindustrie zur Verbesserung der Eigenschaften von Aluminiumschmelzen ge bräuchlich sind.The invention is based on the knowledge that one with the procedures described above as it were Exchange of neutron absorbing and strength enhancing Alloy element surprisingly a very homogeneous Distribution of the neutron-absorbing alloy element achieved in the aluminum alloy, so that the latter per without hesitation for the purpose of uniform neutron absorption in can be used in the nuclear industry. Advantageous is the fact that the corresponding master alloys are commercially available because they are used in the aluminum industry Improving the properties of molten aluminum are in use.
Für die weitere Ausgestaltung bestehen im Rahmen der Erfin dung mehrere Möglichkeiten. So sollte die Einsatzmenge des neutronenabsorbierenden Legierungselementes bezogen auf die Gesamtlegierung bei 1,0 bis 8,0 Gew.-%, insbesondere 2,0 bis 6,0 Gew.-%, liegen. Als optimal gelten bezogen auf die Gesamtlegierung 2,5 bis 3,5 Gew.-% Bor.For further development, there are within the Erfin several options. So the amount of the neutron absorbing alloy element based on the Total alloy at 1.0 to 8.0% by weight, especially 2.0 up to 6.0% by weight. Considered optimal in relation to the Total alloy 2.5 to 3.5 wt .-% boron.
Das festigkeitssteigernde Legierungselement wird man vor zugsweise bezogen auf die gesamte Legierung in einer Menge von 1,0 bis 3,5 Gew.-%, insbesondere 1,5 bis 2,5 Gew.-% einsetzen; als optimales Beispiel seien bezogen auf die Gesamtlegierung 1,5 bis 2,5 Gew.-% Magnesium genannt.The strength-enhancing alloy element will become one preferably based on the entire alloy in an amount from 1.0 to 3.5% by weight, in particular 1.5 to 2.5% by weight deploy; as an optimal example, refer to the Total alloy called 1.5 to 2.5 wt .-% magnesium.
Gegenstand der Erfindung ist auch die Verwendung der nach dem erfindungsgemäßen Verfahren hergestellten Bolzen oder Brammen für neutronenabsorbierende Strukturelemente der Nuklearindustrie durch mechanische Bearbeitung, wie z. B. Kaltverformung, oder insbesondere durch Erwärmen, Strang pressen oder Walzen der Gießlinge und ggf. Ablängen des so entstandenen Strukturelementestranges. Weitere zerspanende und/oder fügende Fertigungsschritte, wie Bohren, Schneiden, Schweissen, Löten oder ähnliches, sind dann regelmäßig nicht mehr erforderlich.The invention also relates to the use of the bolts produced by the method according to the invention or Slabs for neutron absorbing structural elements of the Nuclear industry through mechanical processing, such as. B. Cold forming, or in particular by heating, strand press or roll the castings and cut to length if necessary resulting structural element strand. More cutting and / or joining manufacturing steps, such as drilling, cutting, Welding, soldering or the like are then regular not necessary anymore.
Im folgenden wird die Erfindung anhand eines Ausführungs beispiels erläutert:The invention based on an embodiment for example:
Eine handelsübliche Vorlegierung Al B3 nach DIN EN 575, September 1995, (EN AM-90500) wird zusammen mit bezogen auf die Gesamtmenge 1,8 Gew.-% Magnesium verschmolzen und in Form von Bolzen abgegossen. Dieser wird später nach Er wärmung zu einem Hohlprofilstrang stranggepreßt. Abgelängte Teilstücke werden als Umhüllung für abgebrannte Kern elemente in einem Transport- und/oder Lagerbehälter einge setzt. Untersuchungen ergeben, daß untolerierbare In homogenitäten in der Neutronenabsorption nicht auftreten.A commercially available pre-alloy Al B3 according to DIN EN 575, September 1995, (EN AM-90500) is related to with the total amount of 1.8 wt .-% magnesium fused and in Cast in the form of bolts. This will later become Er heating extruded into a hollow profile strand. Cut to length Sections are used as a covering for burnt core elements inserted in a transport and / or storage container puts. Studies show that intolerable In Homogeneities in neutron absorption do not occur.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19905702A DE19905702C1 (en) | 1999-02-11 | 1999-02-11 | Aluminum alloy for producing extruded or rolled neutron absorbing structural elements for the nuclear industry is prepared by melting a neutron absorber-containing master alloy and a strengthening element-containing alloying component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19905702A DE19905702C1 (en) | 1999-02-11 | 1999-02-11 | Aluminum alloy for producing extruded or rolled neutron absorbing structural elements for the nuclear industry is prepared by melting a neutron absorber-containing master alloy and a strengthening element-containing alloying component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19905702C1 true DE19905702C1 (en) | 2000-05-25 |
Family
ID=7897174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19905702A Expired - Fee Related DE19905702C1 (en) | 1999-02-11 | 1999-02-11 | Aluminum alloy for producing extruded or rolled neutron absorbing structural elements for the nuclear industry is prepared by melting a neutron absorber-containing master alloy and a strengthening element-containing alloying component |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19905702C1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103312A1 (en) * | 2004-04-22 | 2005-11-03 | Alcan International Limited | Improved neutron absorption effectiveness for boron content aluminum materials |
| US10662508B2 (en) | 2015-01-23 | 2020-05-26 | University Of Florida Research Foundation, Inc. | Radiation shielding and mitigating alloys, methods of manufacture thereof and articles comprising the same |
| US10815552B2 (en) | 2013-06-19 | 2020-10-27 | Rio Tinto Alcan International Limited | Aluminum alloy composition with improved elevated temperature mechanical properties |
| US11491257B2 (en) | 2010-07-02 | 2022-11-08 | University Of Florida Research Foundation, Inc. | Bioresorbable metal alloy and implants |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984001390A1 (en) * | 1982-10-05 | 1984-04-12 | Montupet Fonderies | Method for manufacturing aluminium- and boron-based composite alloys and application thereof |
| SU1618774A1 (en) * | 1987-11-30 | 1991-01-07 | Иркутский филиал Всесоюзного научно-исследовательского и проектного института алюминиевой, магниевой и электродной промышленности | Aluminium alloying composition |
-
1999
- 1999-02-11 DE DE19905702A patent/DE19905702C1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984001390A1 (en) * | 1982-10-05 | 1984-04-12 | Montupet Fonderies | Method for manufacturing aluminium- and boron-based composite alloys and application thereof |
| SU1618774A1 (en) * | 1987-11-30 | 1991-01-07 | Иркутский филиал Всесоюзного научно-исследовательского и проектного института алюминиевой, магниевой и электродной промышленности | Aluminium alloying composition |
Non-Patent Citations (2)
| Title |
|---|
| Deutsche Norm DIN EN 575: Aluminium und Aluminium-legierungen Vorlegierungen, durch Erschmelzen her-gestellt, September 1995 * |
| Patent Abstracts of Japan. C-486, 1987. JP 62-235437 A * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005103312A1 (en) * | 2004-04-22 | 2005-11-03 | Alcan International Limited | Improved neutron absorption effectiveness for boron content aluminum materials |
| US11491257B2 (en) | 2010-07-02 | 2022-11-08 | University Of Florida Research Foundation, Inc. | Bioresorbable metal alloy and implants |
| US12121627B2 (en) | 2010-07-02 | 2024-10-22 | University Of Florida Research Foundation, Inc. | Bioresorbable metal alloy and implants |
| US10815552B2 (en) | 2013-06-19 | 2020-10-27 | Rio Tinto Alcan International Limited | Aluminum alloy composition with improved elevated temperature mechanical properties |
| US10662508B2 (en) | 2015-01-23 | 2020-05-26 | University Of Florida Research Foundation, Inc. | Radiation shielding and mitigating alloys, methods of manufacture thereof and articles comprising the same |
| US10995392B2 (en) | 2015-01-23 | 2021-05-04 | University Of Florida Research Foundation, Inc. | Radiation shielding and mitigating alloys, methods of manufacture thereof and articles comprising the same |
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| 8327 | Change in the person/name/address of the patent owner |
Owner name: GNS GESELLSCHAFT FUER NUKLEAR-SERVICE MBH, 45127 ES |
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| R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |