16Mn2VB非调质钢热变形行为及热加工图
Study on Hot Deformation Behavior and Hot Processing Map of 16Mn2VB Steel
孙耀峻
点击：3319次 下载：0次
作者单位：(中国船舶重工集团公司 第七二五研究所, 河南 洛阳 471039)
中文关键字：16Mn2VB钢； 流变应力； 热变形； 热加工图
英文关键字：16Mn2VB steel; flow stress; hot deformation; processing map
中文摘要：研究了变形温度为1000～1150 ℃、应变速率为0.001～1 s-1时16Mn2VB钢的热变形行为。利用流变应力数据，建立了16Mn2VB钢的热压缩变形本构关系，计算了变形激活能。根据材料动态模型，计算并分析了16Mn2VB钢的热加工图。结果表明，在1000～1040 ℃、0.03～0.16 s-1和1070～1125 ℃、0.5～1 s-1条件下功率耗散效率 值较高，可以为确定热变形的最佳工艺参数提供指导。
英文摘要：The high temperature compression tests of 16Mn2VB steel were carried on Gleeble-1500 simulator at 1000 ℃～1150 ℃ and strain rates of 0.001～1 s-1. The constitutive equation was presented and deformation activation energy was calculated. According to the data from tests, the hot processing map of 16Mn2VB steel was obtained based on dynamic material model. The results show that the efficiency of power dissipation is high in the region of 1000 ℃～1040 ℃, 0.03～0.16 s-1 and 1070 ℃～1125 ℃, 0.5～1 s-1. The optimized process of hot deformation can be obtained by processing map.