Transactions of Materials and Heat Treatment

Title：Research on constitutive equation of GH44 nickel base alloy based on orthogonal regression

Authors： HOU Hong liang 1 JIANG Bo1 WANG Yao qi1 LI Zhi qiang1 REN Xueping2 (1Beijing Aeronautical Manufacturing Technology Research Institute Beijing 100024 China 2University of Science & Technology Beijing Beijing 100083 China)

Unit：

KeyWords： GH44 alloy constitutive equation

ClassificationCode：TG115

year,vol(issue):pagenumber：2005,30(1):61-63

Abstract：

The numerical relationship between the flow stress and parameters of hot and force (deformation temperature, deformation rate and deformation degree) is studied through hot physical simulation. Meanwhile, the regularities of the influence on the parameters of hot and force to formability is discussed qualitatively, and constitutive equation on GH44 nickel based alloy is regressed with mathematic statistics analysisTherefore, a scientific basis is provided for both numerical simulation of hot deformation and rational choice and control of parameters of hot and force

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Reference：

[1]　牛济泰.材料和热加工领域的物理模拟技术[M].北京:国防工业出版社,1999.
[2]　余永宁.金属学原理[M].北京:冶金工业出版社,2000.
[3]　北京大学数学力学系概率统计组.正交设计法[M].北京:化学工业出版社,1979.

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