钛对含硼热冲压成形用钢组织和性能的影响
Effect of Titanum on Microstructure and Properties of Hot Stamp-Formed Steels Containing Boron
摘 要
主要通过绘制CCT曲线、热轧试验以及直接淬火试验, 研究了加入钛元素对含硼热冲压成形用钢组织和性能的影响。结果表明: 加入质量分数为0.015%的钛, 可以提高试验钢的淬透性, 在10 ℃·s-1的冷速下即能得到完全马氏体组织, 而且可以提高热轧板淬火后的强度和硬度, 并可使马氏体板条间距从0.35~0.54 μm细化到0.12~0.25 μm。
钛
硼
淬透性
CCT曲线
硬度
hot stamp-formed steel
titanium
boron
hardenability
continuous cooling transformation (CCT) curve
hardness
Abstract
Effects of titanium on the microstructure and properties of hot stamp-formed steels containing boron were studied by drawing CCT curves, hot rolling test and direct quenching test.The results show that adding 0.015wt% titanium could increase the hardenability of the tested steels, and thus got full martensitic microstructure at a lower cooling rate of 10 ℃·s-1. The strength and hardness of the hot rolled sheets after quenching could be increased after adding 0.015wt% titanium, and the distance of martensite lath could be decreased from 0.35-0.54 μm to 0.12-0.25 μm.
中图分类号 TG113
所属栏目 试验研究
基金项目 “十一五”国家科技支撑计划项目(2006BAE03A06)
收稿日期 2011/7/22
修改稿日期 2012/5/6
网络出版日期
作者单位点击查看
备注靳海亮(1985-), 男, 河南安阳人, 硕士研究生。
引用该论文: JIN Hai-liang,ZHAO Ai-min,CHEN Yin-li,CHENG Jun-ye. Effect of Titanum on Microstructure and Properties of Hot Stamp-Formed Steels Containing Boron[J]. Materials for mechancial engineering, 2012, 36(8): 6～9
靳海亮,赵爱民,陈银莉,程俊业. 钛对含硼热冲压成形用钢组织和性能的影响[J]. 机械工程材料, 2012, 36(8): 6～9
被引情况:
【1】马鸣图,路洪洲,孙智富,边箭,方刚,郭爱民, "22MnB5钢三种热冲压成形件的冷弯性能",机械工程材料 40, 7-12(2016)
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参考文献
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【2】NADERI M, KETABCHI M, ABBSI M, et al.Analysis of microstructure and mechanical properties of different hot stamped B-bearing steels[J].Steel Research Int.2010, 81(3): 216-223.
【3】江海涛, 唐荻, 米振莉.汽车用先进高强度钢的开发及应用进展[J].钢铁研究学报, 2007, 19(8): 1-6.
【4】MYOUNG-GYU L, SUNG-JOON K.Application of hot press forming process to manufacture an automotive part and its finite element analysis considering phase transformation plasticity[J].International Journal of Mechanical Sciences, 2009, 51:888-898.
【5】NADERI M, SAEED-AKBARI A, BLECK, W.The effects of non-isothermal deformation on martensitic transformation in 22MnB5 steel[J].Materials Science and Engineering A, 2008, 487: 445-455.
【6】TURETTA A, BRUSCHI S, GHIOTTI A.Investigation of 22MnB5 formability in hot stamping operations[J].Journal of Materials Processing Technology, 2006, 177: 396-400.
【7】褚幼义, 贺信莱, 柯俊, 等.硼在奥氏体晶界的两类偏聚[J].金属学报, 1987, 23(3): A169-A175.
【8】齐俊杰, 黄运华, 张跃．微合金化钢[M].北京:冶金工业出版社, 2006.
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