采用Gleeble-3500型热模拟试验机研究了变形温度和压下量对SS400低碳钢热压缩变形后显微组织的影响。结果表明：SS400钢在变形温度为850，800，775和750。C及压下量为20％，40％和60％的条件下变形后，组织由铁素体和珠光体组成，其中铁素体晶粒形貌分别为针状、等轴状和长条状；随着变形温度的降低、压下量的增加，铁素体晶粒尺寸减小，体积分数增加，最大值为79．2％，最小值约45％。
Influence of deformation temperature and reduction on the microstructure of SS400 low-carbon steel after hot compression deformation was studied by Gleeble 3500 thermal simulator. The results show that the microstructure of the SS400 steel was composed of ferrite and pearlite, the ferrite grains were mainly characterized as acicular, equiaxed and long banded corresponding to the deformation temperatures as 850, 800, 775 and 750 ℃ and the reduction as 20%, 40% and 60%. The ferrite grain size decreased and the volume fraction increased with the decrease of deformation temperature and the increase of reduction, the maximum was 79.2%, and the minimum was about 45 %.
参考文献
| [1] | 宋立秋,侯豁然,左军,王义成,刘清友,张开坚,董瀚.超细晶粒钢的显微组织[J].钢铁钒钛,2003(03):32-36. |
| [2] | 杜林秀,高彩茹,张彩碚,丁桦,刘相华,王国栋.低碳钢应变诱导铁素体相变发生的温度条件[J].金属学报,2002(10):1031-1036. |
| [3] | 杨忠民,赵燕,王瑞珍,车彦民,马燕文,陈其安.低温变形低碳钢超细铁素体的形成[J].金属学报,2000(10):1061-1066. |
| [4] | 裴新华,吴申庆,胡恒法,黄绪传.低碳钢临界奥氏体区的变形行为[J].机械工程材料,2006(04):26-29. |
| [5] | 杨平,傅云义,崔凤娥,孙祖庆.形变温度对Q235碳素钢应变诱导相变的影响[J].金属学报,2001(06):601-608. |
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