AerMet100钢热压缩过程流变应力模型
Flow Stress Model of Steel AerMet100 during Hot Compression Deformation
摘 要
用Gleeble-1500D型试验机研究了AerMet100钢热压缩变形过程流变应力的演变规律.结果表明:流变应力随变形温度的提高而降低,随应变速率和变形量的提高而增加.基于三因子的二次正交回归设计分析方法,建立了流变应力随变形量、应变速率和温度变化的数学模型并对流变应力进行了预测.该模型预测结果与实测结果基本吻合.
热压缩变形
流变应力
steel AerMet100
hot compression deformation
flow stress
Abstract
The flow stress evolution law during hot compression of steel AerMet100 was studied by Gleeble-1500D thermo-simulation tester.The results show that the flow stress decreases with increasing hot deformation temperature and increases with enhancing the strain rate and the amount of deformation.The mathematical models of the flow stress evolution with the hot deformation temperature,strain rate and amount of deformation have been established based on the ternary-quadratic regression analysis method.The simulating results agree basically with the experimental ones.
中图分类号 TG132.3
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收稿日期 2006/3/30
修改稿日期 2006/12/20
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备注汪向荣(1974-),女,黑龙江哈尔滨人,博士研究生.
引用该论文: WANG Xiang-rong,YAN Mu-fu. Flow Stress Model of Steel AerMet100 during Hot Compression Deformation[J]. Materials for mechancial engineering, 2007, 31(3): 73～75
汪向荣,闫牧夫. AerMet100钢热压缩过程流变应力模型[J]. 机械工程材料, 2007, 31(3): 73～75
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参考文献
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【12】高允彦.正交及回归试验设计方法[M].北京:冶金工业出版社,1988:129-150.
【13】闫牧夫.离子渗氮工艺过程的数学模型与计算机仿真[D].哈尔滨:哈尔滨工业大学,1987.
【14】袁鸽成,杨安宸,张新明.Al-10Sn-4Si合金高温塑性变形的流变应力特征[J].广东工业大学报,2000,17(2):1-5.
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