首页> 外国专利> HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET, HIGH-STRENGTH ALLOYED HOT-DIP GALVANIZED STEEL SHEET EXCELLENT IN BAKE HARDENABILITY, AND MANUFACTURING METHOD THEREOF

HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET, HIGH-STRENGTH ALLOYED HOT-DIP GALVANIZED STEEL SHEET EXCELLENT IN BAKE HARDENABILITY, AND MANUFACTURING METHOD THEREOF

机译：烘烤硬化性优异的高强度热浸镀锌钢板，高强度热浸镀锌钢板及其制造方法

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摘要

Steel contains each of C, Si, Mn, P, S, Al, N, O, at a range from ⅛ thickness centered around a ¼ sheet thickness from a surface to ⅜ thickness centered around the ¼ sheet thickness from the surface at a base steel sheet, a structure of the base steel sheet contains, in volume fraction, 3% or more of a retained austenite phase, 50% or less of a ferrite phase, and 40% or more of a hard phase, average dislocation density is 5×10¹³/m²or more, solid-solution C amount contained in the retained austenite phase is in mass % 0.70 to 1.00%, X-ray random intensity ratio of FCC iron in an texture of the retained austenite phase is 3.0 or less, ratio between a grain diameter relative to a rolling direction and a grain diameter relative to a sheet width direction of the retained austenite phase is 0.75 to 1.33.

机译：钢中的C，Si，Mn，P，S，Al，N，O中的每种元素的含量范围为：从以表面的1/4板厚为中心的1/3厚度到从基底的表面的1/4板厚为中心的1/3厚度。钢板，基础钢板的组织中，以体积分数计，残留奥氏体相为3％以上，铁素体相为50％以下，硬质相为40％以上，平均位错密度为5。 ×10 ^{13 / m ^{2 以上，残留奥氏体相中所含的固溶C量为质量％0.70〜1.00％，X射线随机强度比为残留奥氏体相的组织中的FCC铁为3.0以下，残留奥氏体相的相对于轧制方向的粒径与相对于板宽度方向的粒径之比为0.75〜1.33。}}

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公开/公告号US2014234660A1

专利类型
公开/公告日2014-08-21

原文格式PDF
申请/专利权人 NIPPON STEEL & SUMITOMO METAL CORPORATION;
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申请/专利号US201214348536
发明设计人 HIROYUKI KAWATA;NAOKI MARUYAMA;AKINOBU MURASATO;AKINOBU MINAMI;TAKESHI YASUI;TAKUYA KUWAYAMA;HIROYUKI BAN;KAORU HIRAMATSU;
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申请日2012-09-28
分类号B32B15/01;C23C2/02;
国家 US
入库时间 2022-08-21 16:09:33

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