Precipitation Law of V(C,N) in Austenite of Vanadium Microalloyed Steel
摘 要
在变形温度600~950 ℃、应变速率1 s-1的条件下对碳质量分数分别为0.26%, 0.33%, 0.42%的含钒微合金钢进行了应力松弛试验, 得到了其应力松弛曲线和V(C,N)的析出动力学(PTT)曲线, 结合显微组织分析了V(C,N)析出规律。结果表明: V(C,N)的析出会阻碍试验钢中奥氏体再结晶, 减缓应力的下降; 奥氏体中V(C,N)的PTT曲线呈S形, 在900 ℃时V(C,N)析出最快; 试验钢中碳含量的增加加快了V(C,N)的析出速率, 但不影响其最快析出温度, 含碳量最高的试验钢具有最短的开始析出时间,为7.5 s。
Abstract
The stress relaxation experiments under the conditions of deformation temperature of 600-950 ℃ and strain rate of 1 s-1were conducted on the vanadium microalloyed steels with different carbon content of 0.26wt%, 0.33wt% and 0.42wt%, and then the stress relaxation curves of the steels and the precipitation kinetics (PTT) curves of V(C,N) were obtained. Combining with the microstructure, the precipitation law of V(C,N) was analyzed. The results show that the precipitation of V(C,N) inhibited the recrystallization of austenite in the tested steels, resulting in the decrease of stress. The PTT curves of V(C,N) precipitates in austenite showed a S-like shape. The precipitation rate of V(C,N) was the fastest at 900 ℃. The increase of carbon content in the tested steels accelerated V(C,N) precipitation rate, but had no effect on the temperature with the fastest precipitation rate. The tested steel with the highest carbon content had the shortest precipitation start time of 7.5 s.
中图分类号 TG142.1 DOI 10.11973/jxgccl201608006
所属栏目
基金项目 江苏省自然科学基金资助项目(BK2010354); 江苏省科技支撑计划(工业)项目(BE2014007-4); 江苏省高校自然科学指导性计划项目(09KJD430005)
收稿日期 2015/5/25
修改稿日期 2016/6/6
网络出版日期
作者单位点击查看
备注王安东(1975-),男, 江苏海安人, 副教授, 博士。V(C,N)在含钒微合金钢奥氏体中的析出规律
引用该论文: WANG An-dong,WANG Jun-yu,TIAN Lin-mao. Precipitation Law of V(C,N) in Austenite of Vanadium Microalloyed Steel[J]. Materials for mechancial engineering, 2016, 40(8): 23~26
王安东,王骏宇,田林茂. Precipitation Law of V(C,N) in Austenite of Vanadium Microalloyed Steel[J]. 机械工程材料, 2016, 40(8): 23~26
共有人对该论文发表了看法,其中:
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】刘胜新. 中碳微合金热轧非调质无缝油井管钢的组织演化规律研究[D].北京: 北京科技大学, 2004.
【2】LIU W J, JONAS J J. A stress relaxation method for following carbonitride precipitation in austenite at hot working temperatures[J]. Metallurgical Transactions A, 1988, 19(6): 1403-1413.
【3】梁宇,石芷伊,梁益龙. 钒含量对不同冷速冷却后高碳珠光体钢显微组织的影响[J]. 机械工程材料, 2013, 37(8): 19-22.
【4】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, 1999.
【5】陈建华,张喜燕,刘攀,等. 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.
【6】王照东, 曲锦波, 刘湘华,等.松弛法研究微合金钢中碳氮化物的应变诱导析出行为[J].金属学报, 2000, 36(6): 618-621.
【7】刘佳玲. 中碳钒微合金钢线材的基础研究及生产模拟[D]. 秦皇岛: 燕山大学,2013.
【8】OHMORI A, OI K, KAWABATA F, et al. Effect of VN precipitates on formation of grain boundary and intragranular ferrite in a high N-V bearing steel[J]. Journal of the Iron and Steel Institute of Japan, 1998, 84(7): 797-803.
【9】唐国翌. V-Ti-N复合微合金钢物理冶金及断裂机理研究[D]. 北京: 钢铁研究总院, 1990.
【10】WANG A D, LIU G Q, LIU S X, et al. Thermodynamic calculations of carbonitrides in V-Ti-N microalloyed steels for non-quenched/tempered seamless oil-well tubes[J]. Journal of University of Science and Technology Beijing, 2006, 28(9): 823-829.
【11】OHTANI H, TANAKA T, HASEBE M, et al. Solubility of NaCl-type Carbides (NbC, VC and TiC) in Austenite[C]∥Proc Japan-Canada Seminar on Secondary Steelmaking.Tokyo: The Canadian Steel Industry Research Association (CSIRA) and the Iron and Steel Institute of Japan (ISIJ), 1985: 1-12.
【12】ZHANG Z, FARRAR R A. Role of non-metallic inclusions in formation of acicular ferrite in low alloy weld metals[J]. Materials Science and Technology, 1996, 12(3): 237-260.
【13】兰纳伯格.钒在微合金钢中的作用[M].杨才福, 柳书平, 张永权, 译.北京: 冶金工业出版社, 2000.
【2】LIU W J, JONAS J J. A stress relaxation method for following carbonitride precipitation in austenite at hot working temperatures[J]. Metallurgical Transactions A, 1988, 19(6): 1403-1413.
【3】梁宇,石芷伊,梁益龙. 钒含量对不同冷速冷却后高碳珠光体钢显微组织的影响[J]. 机械工程材料, 2013, 37(8): 19-22.
【4】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, 1999.
【5】陈建华,张喜燕,刘攀,等. 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.
【6】王照东, 曲锦波, 刘湘华,等.松弛法研究微合金钢中碳氮化物的应变诱导析出行为[J].金属学报, 2000, 36(6): 618-621.
【7】刘佳玲. 中碳钒微合金钢线材的基础研究及生产模拟[D]. 秦皇岛: 燕山大学,2013.
【8】OHMORI A, OI K, KAWABATA F, et al. Effect of VN precipitates on formation of grain boundary and intragranular ferrite in a high N-V bearing steel[J]. Journal of the Iron and Steel Institute of Japan, 1998, 84(7): 797-803.
【9】唐国翌. V-Ti-N复合微合金钢物理冶金及断裂机理研究[D]. 北京: 钢铁研究总院, 1990.
【10】WANG A D, LIU G Q, LIU S X, et al. Thermodynamic calculations of carbonitrides in V-Ti-N microalloyed steels for non-quenched/tempered seamless oil-well tubes[J]. Journal of University of Science and Technology Beijing, 2006, 28(9): 823-829.
【11】OHTANI H, TANAKA T, HASEBE M, et al. Solubility of NaCl-type Carbides (NbC, VC and TiC) in Austenite[C]∥Proc Japan-Canada Seminar on Secondary Steelmaking.Tokyo: The Canadian Steel Industry Research Association (CSIRA) and the Iron and Steel Institute of Japan (ISIJ), 1985: 1-12.
【12】ZHANG Z, FARRAR R A. Role of non-metallic inclusions in formation of acicular ferrite in low alloy weld metals[J]. Materials Science and Technology, 1996, 12(3): 237-260.
【13】兰纳伯格.钒在微合金钢中的作用[M].杨才福, 柳书平, 张永权, 译.北京: 冶金工业出版社, 2000.
相关信息