冷镦钢ML40Cr盘条的热变形抗力
Deformation Resistance of ML40Cr Cold Heading Steel
摘 要
采用Gleeble-3800型热模拟试验机和单道次压缩试验对ML40Cr冷镦钢金属塑性变形抗力进行了研究.结果表明:在一定的变形程度下,塑性变形的ML40Cr冷镦钢仍存在强化,变形抗力随变形程度的增加而增加,在低应变速率下,温度大于1 000 ℃时发生动态再结晶;变形抗力随着变形速率的增加而增大;多数情况下,变形温度增高,变形抗力降低,只有在两相区低应变速率下出现相反的情况.同时建立了ML40Cr冷镦钢变形抗力数学模型,为冷镦钢低温轧制计算轧制力提供了理论依据.
热模拟
变形抗力
cold heading steel
thermal- mechanical simulate
deformation resistance
Abstract
The metal-plastic deformation resistance of ML40Cr steel had been studied by isothermal compression test in the Gleeble-3800.The results show that ML40Cr steels after plastic deformation have strengthen.The deformation resistance increase with increasing deformation degree.Dynamic recrystallization occur at low strain rate and more than 1 000 ℃.The deformation resistance increase with increasing strain rate.Most of condition,the flow stress decrease with the increase of deforming temperature,on the contrary in two-phase region and low strain rate.Additionally,the deformation resistance expression is regressed using origin soft.It could offer theoretic base to calculate rolling force of ML40Cr steel.
中图分类号 TG335.6
所属栏目
基金项目 中国博士后科学基金资助项目(2005038592)
收稿日期 2005/12/21
修改稿日期 2006/10/8
网络出版日期
作者单位点击查看
备注高秀华(1966-),女,河北唐山人,副教授,博士后.
引用该论文: GAO Xiu-hua,PANG Bo,QIU Chun-lin,QI Ke-min,TIAN Yan-wen,YUAN Li-zhong,WU Shui-long. Deformation Resistance of ML40Cr Cold Heading Steel[J]. Materials for mechancial engineering, 2006, 30(12): 69～71
高秀华,庞波,邱春林,齐克敏,田彦文,袁立忠,吴水龙. 冷镦钢ML40Cr盘条的热变形抗力[J]. 机械工程材料, 2006, 30(12): 69～71
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】先越蓉.冷镦钢的生产和发展[J].特殊钢,2005,26(3):31-34.
【2】Gilles Pierson.Improvements and developments in the cold heading field[J].Wire Journal International,1986,(12):51-55.
【3】吴瑞祥.影响冷镦钢质量的主要因素及控制措施研究[J].湖南冶金,2002,(2):22-24.
【4】李慧峰,张文茹,张国儒.影响高线产品冷镦性能轧钢因素的分析及控制[J].钢铁,2003,38(1):25-27.
【5】王占学.塑性加工金属学[M].北京:冶金工业出版社,1991.
【2】Gilles Pierson.Improvements and developments in the cold heading field[J].Wire Journal International,1986,(12):51-55.
【3】吴瑞祥.影响冷镦钢质量的主要因素及控制措施研究[J].湖南冶金,2002,(2):22-24.
【4】李慧峰,张文茹,张国儒.影响高线产品冷镦性能轧钢因素的分析及控制[J].钢铁,2003,38(1):25-27.
【5】王占学.塑性加工金属学[M].北京:冶金工业出版社,1991.
相关信息
