加热速率对22MnB5超高强度钢奥氏体化的影响
Effect of Heating Rate on Austenitization of 22MnB5 Ultra High Strength Steel
摘 要
在Gleeble 3500型热力模拟试验机上对22MnB5超高强度钢在不同加热速率(10～100 ℃·s-1)下进行了奥氏体化, 研究了加热速率对奥氏体化温度Ac1, Ac3及奥氏体转变时间的影响, 并建立了加热速率与Ac1的关系式。结果表明: 该钢的Ac1与Ac3都随着加热速率的增大而升高; 当加热速率低于25 ℃·s-1时, Ac1随加热速率的增大快速升高, 当高于25 ℃·s-1时, Ac1缓慢升高并趋向恒定; 随着加热速率的提高, 奥氏体化温度区间(Ac3～Ac1)大小呈升高趋势, 奥氏体转变时间缩短。
热力模拟
加热速率
奥氏体化
22MnB5 ultra high strength steel
thermo-mechanical simulation
heating rate
austenitization
Abstract
22MnB5 ultra high strength steel was austenitizated at different heating rates using a Gleeble 3500 thermo-mechanical simulator. The effects of heating rates on austenitization temperatures of Ac1, Ac3 and on austenitization time were investigated, and the relational expression between heating rate and Ac1 was built up. The results show that both the Ac1 and Ac3 of the steel increased with the increase of heating rates. With the increase of heating rates, the temperature Ac1 increased rapidly with the heating rate below 25 ℃·s-1 and increased slowly then tended to a constant with the heating rates over 25 ℃·s-1. Meanwhile, the austenitization temperature range values (Ac3-Ac1) increased and austenitization time interval values decreased with the increase of the heating rates.
中图分类号 TG142 DOI 10.11973/jxgccl201604018
所属栏目 物理模拟与数值模拟
基金项目
收稿日期 2015/5/2
修改稿日期 2016/2/27
网络出版日期
作者单位点击查看
备注靳永明(1991-), 男, 山西大同人, 硕士研究生。
引用该论文: JIN Yong-ming,ZHANG Yi-sheng,LIANG Wei-kang,ZHENG Xu-yu,LI Yang. Effect of Heating Rate on Austenitization of 22MnB5 Ultra High Strength Steel[J]. Materials for mechancial engineering, 2016, 40(4): 80～83
靳永明,张宜生,梁卫抗,郑徐雨,李阳. 加热速率对22MnB5超高强度钢奥氏体化的影响[J]. 机械工程材料, 2016, 40(4): 80～83
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【2】王辉, 葛锐, 周少云, 等.热冲压成形技术及发展前景［J］.武汉工程职业技术学院学报,2014,26(3): 52-55.
【3】李勇, 李家栋, 付天亮, 等.热成形加热新技术［J］.金属热处理,2014,39(7): 66-71.
【4】MORI K, SAITO S, MAKI S. Warm and hot punching of ultra high strength steel sheet ［J］. CIRP Annals-Manufacturing Technology, 2008, 57 (1) : 321-324.
【5】MORI K,MAENO T,MARUO Y.Punching of small hole of die-quenched steel sheets using local resistance heating［J］.CIRP Annals-Manufacturing Technology,2012,61(1): 255-258.
【6】MORI K,MAENO T,MONGKOLKAI K.Tailored die quenching of steel parts having strength distribution using bypass resistance heating in hot stamping［J］.Journal of Materials Processing Technology,2013,213(3): 508-514.
【7】MORI K.Smart hot stamping for ultra-high strength steel parts［J］.Transactions of Nonferrous Metals Society of China,2012,22(S2): 496-503.
【8】张广恩, 李志翔.加热方法及加热速率的探讨［J］.金属加工(热加工),2013(3): 40-40.
【9】牛济泰.材料和热加工领域的物理模拟技术［M］.北京: 国防工业出版社, 2007.
【10】黄绪传.GLEEBLE-3500试验机的热模拟技术［J］.梅山科技,2006(1): 44-46.
【11】BARDELCIK A,WORSWICK M J,WINKLER S,et al.A strain rate sensitive constitutive model for quenched boron steel with tailored properties［J］.International Journal of Impact Engineering,2012,50: 49-62.
【12】徐春, 梁宝钱.BR1500HS热成形钢的动态连续冷却转变曲线［J］.机械工程材料,2013,37(2): 10-12.
【13】赵楠, 周丽萍, 黄绪传, 等.BM510L汽车大梁钢的连续冷却转变曲线［J］.机械工程材料,2014,38(6): 38-40.
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【20】SINGH S B,KRISHNAN K,SAHAY S S.Modeling non-isothermal austenite to ferrite transformation in low carbon steels［J］.Materials Science and Engineering: A,2007,445/446: 310-315.
【21】李继山, 廖日东, 陈国华.42CrMo钢曲轴电磁感应加热过程奥氏体化［J］.材料热处理学报,2015,36(1): 217-222.
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【23】董旭旭, 李新梅, 董兰兰, 等.风力机叶片用复合材料的拉伸及冲蚀磨损性能［J］.机械工程材料,2015,39(12): 25-29.
【24】刘艳梅, 路广平, 曹雅彬, 等.加热速率和保温时间对X70钢组织与性能的影响［J］.金属热处理,2012(2): 49-53.
【25】马晶, 张骁勇, 高惠临.临界区加速冷却始冷温度对X100大变形管线钢组织和力学性能的影响［J］.机械工程材料,2014,38(9): 12-17.
【26】俞德刚.加热速率及原始组织对珠光体转变为奥氏体转变温度的影响之研究［J］.哈尔滨工业大学学报, 1955(5): 1-23.
【27】张效宁, 景益, 余燕, 等.加热速度对SA738Gr.B钢奥氏体转变温度的影响及分析［J］.热加工工艺,2013,42(6): 38-41.
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