| 中锰钢温成形技术探讨 |
| |
| 引用本文： | 李书利,王存宇,王育田,常颖,董瀚.中锰钢温成形技术探讨[J].钢铁研究学报,2016,28(11):46-50. |
| |
| 作者姓名： | 李书利 王存宇 王育田 常颖 董瀚 |
| |
| 作者单位： | 1. 长城汽车股份有限公司技术中心,河北保定,071000;2. 钢铁研究总院华东分院,北京100081;太原钢铁(集团)有限公司技术中心,山西太原030003;3. 太原钢铁(集团)有限公司技术中心,山西太原,030003;4. 大连理工大学汽车工程学院,辽宁大连,116024;5. 钢铁研究总院华东分院,北京,100081 |
| |
| 基金项目： | 国家自然科学基金资助项目(51571048)，国家“973”计划资助项目(2010CB630803) |
| |
| 摘 要： | 使用Gleeble-3800热模拟试验机研究了中锰钢(温成形钢)和22MnB5钢(热成形钢)的微观组织、力学性能和高温拉伸性能.结果表明:与22MnB5钢相比,在获得1 500 MPa级的抗拉强度时,中锰钢的加热温度可从950℃降低到800℃,钢的组织明显细化并且没有发生表面脱碳,断后伸长率从7.5％提高到10％.高温拉伸试验结果表明:中锰钢比22MnB5钢具有更高的延伸率和硬化指数,可以减小成形过程中局部减薄过高导致的样件破裂.
|
| 关 键 词： | 第三代汽车钢 中锰钢 温成形 热成形 马氏体 |
Warm stamping of medium-Mn steel |
| |
| LI Shu-li��WANG Cun-yu��WANG Yu-tian��CHANG Ying��DONG Han.Warm stamping of medium-Mn steel[J].Journal of Iron and Steel Research,2016,28(11):46-50. |
| |
| Authors: | LI Shu-li��WANG Cun-yu��WANG Yu-tian��CHANG Ying��DONG Han |
| |
| Affiliation: | ??1??Technology Center?? Great Wall Motor Co., Ltd., Baoding 071000?? Hebei, China ; 2??East China Branch??Central Iron and Steel Research Institute, Beijing 100081, China ; 3??Technology Center, Taiyuan Iron and Steel Group Co., Ltd., Taiyuan 030003, Shanxi, China ;4??School of Automotive Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China?? |
| |
| Abstract: | The microstructure, mechanical properties and high temperature tensile properties of medium-Mn steel (warm stamping steel) and 22MnB5 steel (hot stamping steel) were studied by Gleeble-3800 hot simulation tester. The results show that comparing with 22MnB5 steel, the heating temperature of medium-Mn steel reduces from 950?? to 800?? for obtaining the tensile strength of 1500MPa, and finer microstructure can be obtained in medium-Mn steel without surface decarburization; the total elongation reaches 10% which is higher than that of hot stamping steel (7??5%). The high temperature tensile tests results show that the medium-Mn steel has higher elongation and hardening index value, which can reduce the broken induced by local necking during high temperature stamping process. |
| |
| Keywords: | third generation automobile steel medium-Mn steel warm stamping hot stamping martensite |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《钢铁研究学报》浏览原始摘要信息 |
|
点击此处可从《钢铁研究学报》下载全文 |
|
