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发明申请
US20100273024A1 DUAL-PHASE STEEL, FLAT PRODUCT MADE OF A DUAL-PHASE STEEL OF THIS TYPE AND PROCESSES FOR THE PRODUCTION OF A FLAT PRODUCT 审中-公开
这种类型的双相钢的双相钢，平板产品和生产平板产品的方法

DUAL-PHASE STEEL, FLAT PRODUCT MADE OF A DUAL-PHASE STEEL OF THIS TYPE AND PROCESSES FOR THE PRODUCTION OF A FLAT PRODUCT
摘要：
A dual-phase steel, a flat product produced therefrom and a process for the production thereof. The dual-phase steel has, in addition to a strength of at least 950 MPa and good deformability, a surface finish which, when a simple production process is used, makes it possible for the flat product produced from this steel to be formed into a complexly formed component, such as a part of a car bodywork, in an uncoated state or in a state provided with an anti-corrosion coating. The steel according to the invention comprises 20-70% martensite, up to 8% retained austenite and the remainder ferrite and/or bainite and comprises (in % by weight): C: 0.10-0.20%, Si: 0.10-0.60%, Mn: 1.50-2.50%, Cr: 0.20-0.80%, Ti: 0.02-0.08%, B:
摘要（中）：

双相钢，由其制成的扁平制品及其制造方法。 双相钢除了具有至少950MPa的强度和良好的变形性之外，还具有表面光洁度，当使用简单的制造工艺时，可以将由该钢制成的扁平产品形成为 复杂形成的部件，例如汽车车身的一部分，处于未涂覆状态或设置有防腐蚀涂层的状态。 根据本发明的钢包括20-70％的马氏体，高达8％的残余奥氏体，其余的是铁素体和/或贝氏体，并包含（重量％）：C：0.10-0.20％，Si：0.10-0.60％ Mn：1.50-2.50％，Cr：0.20-0.80％，Ti：0.02-0.08％，B：<0.0020％，Mo：<0.25％，Al：<0.10％，P：NlE; 0.2％，S： 0.01％，N：＆NlE; 0.012％，其余为铁和不可避免的杂质。

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