华中科技大学学报：自然科学版2011，Vol.39Issue(10)：23-27,5.
316L粉末热等静压致密化过程数值模拟
Numerical simulation of the densification of 316L powder during hot isostatic pressing
摘要
Abstract
To investigate the densification behavior of the metal powder during hot isostatic pressing（HIP）,the Perzyna viscoplastic rheological model of finite element software（MSC.Marc） was used to simulate HIP of 316 L powder.Flow behavior of the powder was studied.Mechanism of densification at different stages,distribution of the final relative density and deformed configuration for compact were also discussed.The results of prediction and experiment were compared,and it can be seen that the maximum relative error in dimension of simulation is within 8%;the accuracy of prediction in axial direction is better than that in radial direction;the simulation can give a useful method to the HIP process,and supply an important instruction to optimal design of complex shape containers.关键词
热等静压/粉末冶金/有限元法/致密化/不锈钢/黏塑性模型Key words
hot isostatic pressing/powder metallurgy/finite element method/densification/stainless steel/viscoplastic mode分类
矿业与冶金引用本文复制引用
刘国承,史玉升,魏青松,薛鹏举..316L粉末热等静压致密化过程数值模拟[J].华中科技大学学报：自然科学版,2011,39(10):23-27,5.基金项目
国际科技合作与交流项目 （）
国家重大科技专项基金资助项目 （）
华中科技大学校自主课题资助项目 （）
