控轧控冷参数对含铌微合金钢组织的影响
Effect of Controlled Rolling and Cooling Parameters on Structure of Niobium Microalloyed Steel
摘 要
利用Gleeble-1500型热模拟试验机研究了含铌微合金钢在不同控轧控冷参数下组织的变化规律.结果表明：低温变形由于引发了形变诱导铁素体相变,对珠光体转变的促进作用更加明显；珠光体片层间距随变形温度的升高而减小,并且随冷却速率增加明显减小；高温变形扩大了贝氏体相变的冷速区间, 低温变形由于引发形变诱导铁素体相变,对贝氏体相变起到了抑制作用.
含铌微合金钢
珠光体
贝氏体
deformation induced ferrite transformation
niobium microalloyed steel
pearlite
bainite
Abstract
Utilizing Gleeble-1500 thermomechanical simulator,the microstructure under the conditions of different controlling rolling and cooling parameters was investigated.The deformation induced ferrite was induced when deformed at low temperatures,and pearlite transformation was promoted obviously.The pearlite lath reduced when temperature and cooling rate increased.Bainite transformation region was inlarged when deformed at high temperatures.Bainite transformation was retarded at low temperaturs because of the occurence of deformation induced ferrite transformation.
中图分类号 TG115.21
所属栏目
基金项目 国家高技术研究发展计划资助项目(2003AA33G010)；国家自然科学基金资助项目(50271015)
收稿日期 2005/8/30
修改稿日期 2005/11/30
网络出版日期
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备注贾志鑫(1974-),男,辽宁本溪人,高级工程师,博士研究生.
引用该论文: JIA Zhi-xin,YI Hai-long,LIU Song-tao,DU Lin-xiu,WANG Guo-dong,LIU Xiang-hua. Effect of Controlled Rolling and Cooling Parameters on Structure of Niobium Microalloyed Steel[J]. Materials for mechancial engineering, 2006, 30(9): 7～9
贾志鑫,衣海龙,刘嵩韬,杜林秀,王国栋,刘相华. 控轧控冷参数对含铌微合金钢组织的影响[J]. 机械工程材料, 2006, 30(9): 7～9
被引情况:
【1】何沂桂,满廷慧,谭利,詹肇麟,雍岐龙,包耀宗, "锻造工艺对铌-钒微合金非调质钢显微组织的影响",机械工程材料 39, 29-31(2015)
【2】钟荣,张志波,阴树标,刘清友,王华昆, "未再结晶区控轧控冷工艺对低碳高铌钢组织的影响",机械工程材料 37, 59-62(2013)
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参考文献
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【3】赵磊,郑为为,杨正钥,等.Q235碳素钢多道次热变形中的组织演变及性能[J].北京科技大学学报,2004,(5):507-511.
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【5】刘嵩韬,杜林秀,刘相华,等.含铌微合金钢形变诱导相变上限温度影响因素的研究[J].钢铁研究,2004,(3):16-21.
【6】Khlestov V M,Konopleva E V,Mcqueen H J.Kinetics of austenite transformation during thermomechanical processes[J].Canadian Metallurgical Quarterly,1998,37(2):75-89.
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