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RU2019124005A - Снабженный легированным алюминиевым покрытием стальной лист для горячей штамповки и горячештампованный стальной элемент - Google Patents

Снабженный легированным алюминиевым покрытием стальной лист для горячей штамповки и горячештампованный стальной элемент Download PDF

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RU2019124005A
RU2019124005A RU2019124005A RU2019124005A RU2019124005A RU 2019124005 A RU2019124005 A RU 2019124005A RU 2019124005 A RU2019124005 A RU 2019124005A RU 2019124005 A RU2019124005 A RU 2019124005A RU 2019124005 A RU2019124005 A RU 2019124005A
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steel sheet
hot
alloy
steel
alloyed
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RU2019124005A
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RU2019124005A3 (ru
Inventor
Масахиро ФУДЗА
Дзун МАКИ
Соси ФУДЗИТА
Кадзухиса КУСУМИ
Синитиро ТАБАТА
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Ниппон Стил Корпорейшн
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    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
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    • C23C2/12—Aluminium or alloys based thereon
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    • B32B15/00—Layered products comprising a layer of metal
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Claims (33)

1. Снабженный легированным алюминиевым покрытием стальной лист для горячей штамповки, содержащий:
стальной лист, содержащий химический состав, в мас.%:
C от 0,18 до 0,36,
Si от 0,02 до 0,5,
Mn от 1,2 до 2,2,
P от 0,001 до 0,03,
S от 0,0001 до 0,02,
Cr от 1,1 до 2,1,
N от 0,001 до 0,01,
Ti от 0,01 до 0,5,
Al от 0,01 до 0,1,
B от 0,0001 до 0,01,
Железо и примеси - остальное; и
легированный слой Al-Fe, который сформирован на поверхности стального листа и имеет толщину 15 мкм или более,
причем легированный слой Al–Fe включает в себя фазу сплава на основе Fe–Al, содержащую 45–85% Fe и 4–13% Si, и доля длины, занимаемой фазой сплава на основе Fe–Al на верхней поверхности в сечении, перпендикулярном к поверхности стального листа, составляет 10% или более и 50% или меньше.
2. Снабженный легированным алюминиевым покрытием стальной лист для горячей штамповки по п. 1, дополнительно содержащий в своем химическом составе Nb от 0,01 до 1,00 мас.%.
3. Горячештампованный стальной элемент, полученный путем выполнения формования и упрочнения в одном и том же процессе посредством формования с использования штампов после нагревания снабженного легированным алюминиевым покрытием стального листа для горячей штамповки по п. 1 или 2 до температуры, при которой по меньшей мере часть снабженного легированным алюминиевым покрытием стального листа для горячей штамповки становится фазой аустенита.
4. Горячештампованный стальной элемент, содержащий:
сталь, содержащую химический состав, в мас.%:
C от 0,18 до 0,36,
Si от 0,02 до 0,5,
Mn от 1,2 до 2,2,
P от 0,001 до 0,03,
S от 0,0001 до 0,02,
Cr от 1,1 до 2,1,
N от 0,001 до 0,01,
Ti от 0,01 до 0,5,
Al от 0,01 до 0,1,
B от 0,0001 до 0,01,
Железо и примеси - остальное; и
легированный слой Al–Fe, который сформирован на поверхности стали и имеет толщину 15 мкм или более,
причем легированный слой Al–Fe включает в себя фазу сплава на основе Fe–Al, содержащую 45–85% Fe и 4–13% Si, и доля длины, занимаемой фазой сплава на основе Fe–Al на верхней поверхности в сечении, перпендикулярном к поверхности стального листа, составляет 10% или более и 50% или меньше.
5. Горячештампованный стальной элемент по п. 4, дополнительно содержащий в своем химическом составе Nb от 0,01 до 1,00 мас.%.
RU2019124005A 2017-02-02 2017-02-02 Снабженный легированным алюминиевым покрытием стальной лист для горячей штамповки и горячештампованный стальной элемент RU2019124005A (ru)

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KR20190099057A (ko) 2019-08-23
BR112019014755A2 (pt) 2020-03-03
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EP3578680A1 (en) 2019-12-11
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