钼对高强度船板钢变形后连续冷却转变的影响
Effect of Molybdenum on Continuous Cooling Transformation of Ship Plate Steel with High Strength
摘 要
在Gleeble-3800热模拟试验机上采用热膨胀法结合硬度测试得到加钼和不加钼两种高强度船板钢变形后的连续冷却转变(CCT)曲线,用光学显微镜、扫描电镜、透射电镜等观察了相应的组织转变特征,研究了钼元素对高强度船板钢CCT曲线及显微组织的影响.结果表明:在高强度船板钢中加入质量分数为0.2%的钼后,扩大了其CCT曲线中的贝氏体转变区,并且使铁素体和珠光体转变区右移;在相同的冷却速率下贝氏体中的M/A岛数量较多,尺寸较大,分布更加均匀弥散.
连续冷却转变曲线
热膨胀法
显微组织
molybdenum
continuous cooling transformation curve
thermal dilation method
microstructure
Abstract
The continuous cooling transformation (CCT) curves of the Mo-bearing and Mo-free high strength ship plate steels were measured by means of Vickers-hardness measurement and thermal dilation method on the Gleeble-3800 thermo-simulation machine.The microstructure transformation character was observed by optical microscopy,SEM and TEM.The influence of Mo on microstructure and CCT curves of the high strength structural ship plate steel was studied.The results show that the transition zone of bainite in the CCT curve was widened and the transition zones of ferrite and pearlite were moved towards the right when 0.2% Mo was added.In addition.In bainite the size of martensite/austenite island (M/A) was larger,the quantity of M/A island was more and the distribution of M/A island was more even and dispersive at the same cooling rate.
中图分类号 TG151.2
所属栏目 试验研究
基金项目
收稿日期 2008/7/21
修改稿日期 2009/2/23
网络出版日期
作者单位点击查看
备注杨静(1979-),女,辽宁鞍山人,工程师,学士.
引用该论文: YANG Jing,LI Gui-yan,HAN Peng,LI Wen-zhu,ZHAO Bao-chun,XU Feng. Effect of Molybdenum on Continuous Cooling Transformation of Ship Plate Steel with High Strength[J]. Materials for mechancial engineering, 2009, 33(8): 10～12
杨静,李桂艳,韩鹏,李文竹,赵宝纯,徐烽. 钼对高强度船板钢变形后连续冷却转变的影响[J]. 机械工程材料, 2009, 33(8): 10～12
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】沈翃,翟晓毅.用Fe-Nb替代Al生产高强度船板钢的试验[J].河北冶金,2005(5):19-20.
【2】东涛,付俊岩.中厚钢板的技术需求与对策[J].微合金化技术,2003(2):12-14.
【3】BAI D Q,YUE S,MACCAGNO T M,et al.Effect of deformation and cooling rate on the microstructures of low carbon Nb-B steels[J].ISIJ Int,1998(4):371-379.
【4】渠秀娟.压应力对C-Mo钢连续冷却贝氏体相变的影响[J].材料热处理学报,2007(8):161-164.
【5】章守华.合金钢[M].北京:冶金工业出版社,1998.
【6】张红梅.低碳贝氏体钢形变奥氏体的连续冷却相变研究[J].金属热处理学报,2000(4):12-14.
【2】东涛,付俊岩.中厚钢板的技术需求与对策[J].微合金化技术,2003(2):12-14.
【3】BAI D Q,YUE S,MACCAGNO T M,et al.Effect of deformation and cooling rate on the microstructures of low carbon Nb-B steels[J].ISIJ Int,1998(4):371-379.
【4】渠秀娟.压应力对C-Mo钢连续冷却贝氏体相变的影响[J].材料热处理学报,2007(8):161-164.
【5】章守华.合金钢[M].北京:冶金工业出版社,1998.
【6】张红梅.低碳贝氏体钢形变奥氏体的连续冷却相变研究[J].金属热处理学报,2000(4):12-14.
相关信息
