低碳微合金钢中碳化钛的等温析出行为
Isothermal Precipitation of TiC in Low Carbon Micro-alloyed Steel
摘 要
采用电阻法和透射电镜观察等方法测定了含钛0.088%微合金钢中碳化钛(TiC) 的等温析出(PTT)曲线, 分析了其析出行为。结果表明: 在γ→α转变区的530～630 ℃范围内, TiC析出速率最大; 在高温固溶及等温析出条件下, TiC在奥氏体中以针状析出, 而在铁素体中呈相间或弥散析出; 在530～630 ℃温度区间等温, 可得到最好析出强化效果。
碳化钛
等温转变
等温析出
micro-alloyed steel
TiC
isothermal transformation
isothermal precipitation
Abstract
The isothermal precipitation (PTT) curves of TiC in 0.088%Ti micro-alloyed steel were tested by resistance measurement and TEM observation, the precipitation behaviors were analyzed. The results show that the largest precipitation rate of TiC was in the temperature range of 530-630 ℃ in γ→α transformation. In the condition of high temperature solid solution and isothermal precipitation, TiC precipitated as needle shape in austenite while as interphase or dispersive precipitation in ferrite. The best precipitation strengthening was found when TiC isothermally precipitated at 530-630 ℃.
中图分类号 TG142.33
所属栏目 材料性能及其应用
基金项目 国家自然科学基金资助项目(51071183)
收稿日期 2013/2/22
修改稿日期 2014/2/14
网络出版日期
作者单位点击查看
备注陈建华(1974-), 男, 重庆人, 博士研究生。
引用该论文: CHEN Jian-hua,ZHANG Xi-yan,LIU Pan,LAN Xiu-qiong,LIU Xing-zhi. Isothermal Precipitation of TiC in Low Carbon Micro-alloyed Steel[J]. Materials for mechancial engineering, 2014, 38(5): 48～51
陈建华,张喜燕,刘攀,蓝秀琼,刘兴智. 低碳微合金钢中碳化钛的等温析出行为[J]. 机械工程材料, 2014, 38(5): 48～51
被引情况:
【1】王安东,王骏宇,田林茂, "Precipitation Law of V(C,N) in Austenite of Vanadium Microalloyed Steel",机械工程材料 40, 23-26(2016)
【2】梁国俐, "DH32船板钢埋弧焊接头的力学性能",机械工程材料 40, 103-105(2016)
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参考文献
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【3】顾苏怡. 大变形共析钢时效析出机制探讨［J］.材料热处理学报,2010,31(3):89-91.
【4】刘胜新, 陈永, 刘国权, 等．用应力松驰法研究微合金钢碳氮化物的应变诱导析出行为［J］.机械工程材料,2006,30(10):84-87.
【5】JUNG J G, PARK J S, KIM J Y, et al. Carbide precipitation kinetics in austenite of a Nb-Ti-V microalloyed steel［J］.Materials Science and Engineering: A, 2011, 528:5529-5535.
【6】FU Wan-tang,WANG Zheng, JING Tian-fu, et al. A new approach to isothermal precipitation kinetics of carbides［J］.Journal of Material Science and Technology,1998,14:478-480.
【7】罗洪君.普通化学［M］.哈尔滨:哈尔滨工业大学出版社,2010:128.
【8】黄昆.固体物理学［M］.北京: 北京大学出版社, 2009:149.
【9】宋学孟.金属物理性能分析［M］.北京: 机械工业出版社, 1990:16.
【10】刘革,贾云海,陈吉文,等.钢中氮化钛及碳化钛的光谱行为初探［J］.冶金分析,2003,23(3):26-28.
【11】许峰云,白秉哲,方鸿生.低合金高强度钢钛微合金化进展［J］.金属热处理,2008,32(12):29-34.
【12】SHANMUGAM S, TANNIRU M, MISRA R D K, et al. Precipitation in V beating microalloyed steel containing low concentrations of Ti and Nb［J］.Material Science and Technology,2005,21(8):883-892.
【13】SOTO R, SAIKALY W, BANO X, et al. Statistical and theoretical analysis of precipitates in dual-phase steels microalloyed with titanium and their effect on mechanical properties［J］.Acta materialia,1999,47(12):3475-3481.
【14】MEYER L, SCHNEIDER C, STRABBURGER C. 对碳素结构钢中钛作用原理的金属学研究［J］.钢铁钒钛译丛,1986(1):100-106.
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