| B1800HS热成形钢组织转变的JMatPro计算和试验研究 |
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| 引用本文： | 郭亚洲,宋宁宏,倪雷,凌华,毕文珍,韦习成.B1800HS热成形钢组织转变的JMatPro计算和试验研究[J].金属热处理,2022,47(3):239-244. |
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| 作者姓名： | 郭亚洲 宋宁宏 倪雷 凌华 毕文珍 韦习成 |
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| 作者单位： | 1.上海汽车集团股份有限公司 乘用车公司, 上海 201804;2.上海大学 材料科学与工程学院, 上海 200444;3.宝山钢铁股份有限公司中央研究院 汽车用钢开发与应用技术国家重点实验室(宝钢), 上海 200126 |
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| 摘 要： | 以B1800HS系试制热成形钢为例,探究了JMatPro软件计算热力学数据的可靠性。在计算所得的热成形钢TTT曲线上读取其奥氏体化温度、最小临界冷却速度以及相变温度范围,与采用热膨胀仪测试所得钢的CCT曲线结果进行了对比分析,研究了添加Mo、V合金元素对钢组织和性能的影响。结果显示,JMatPro软件计算的奥氏体化温度和临界冷却速度与试验结果吻合度较好,预测的组织转变温度范围有微小偏差,表明JMatPro软件对B1800HS热成形钢的热处理方案制订有较高的提供指导。此外通过性能测试,确定多元钼钒微合金化可使试验钢拥有更加优异的综合服役性能。
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| 关 键 词： | 热成形钢 JMatPro软件 热分析法 CCT曲线 |
| 收稿时间： | 2021-11-13 |
JMatPro calculation and experimental study of microstructure transformation of B1800 HS hot-formed steel |
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| Guo Yazhou,Song Ninghong,Ni Lei,Ling Hua,Bi Wenzhen,Wei Xicheng.JMatPro calculation and experimental study of microstructure transformation of B1800 HS hot-formed steel[J].Heat Treatment of Metals,2022,47(3):239-244. |
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| Authors: | Guo Yazhou Song Ninghong Ni Lei Ling Hua Bi Wenzhen Wei Xicheng |
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| Affiliation: | 1. Passenger Vehicle Company, SAIC Motor, Shanghai 201804, China; 2. School of Materials Science and Engineering, Shanghai University, Shanghai 200444, China; 3. State Key Laboratory of Development and Application(Baosteel) Research Institute, Baoshan Iron & Steel Co., Ltd., Shanghai 200126, China |
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| Abstract: | Taking B1800HS series prototype hot-formed steel as an example, the reliability of thermodynamic data calculated by JMatPro software was investigated. The austenitizing temperature, minimum critical cooling rate and phase transformation temperature range were obtained from the calculated TTT curves of the steels, and compared with that of experimental CCT curves measured by thermal dilatometer. The effects of Mo and V on microstructure and properties of the steel were studied. The results show that the austenitizing temperature and critical cooling rate calculated by JMatPro software are in good agreement with the experimental results, and the predicted range of microstructure transformation temperature has a slight deviation, indicating that the JMatPro software can provide guidance for the formulation of heat treatment scheme of the B1800HS series hot-formed steels. In addition, through the performance test, it is confirmed that molybdenum vanadium multi-microalloying can make the tested steels have more excellent comprehensive service performance. |
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| Keywords: | hot-formed steel JMatPro software thermal analysis CCT curve |
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