Effect of Hot Isostatic Pressing Conditions and Cooling Rate on Microstructure and Properties of Ti-6Al-4V Alloy from Atomized Powder
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2014年第12期
论文作者：Lei Xu Ruipeng Guo Chunguang Bai Jiafeng Lei Rui Yang
文章页码：1289 - 1295
摘 要：The effects of temperature and pressure on density, microstructure and mechanical properties of powder compacts during hot isostatic pressing(HIPping) were investigated. Optimized HIPping parameters of temperature range from 900 to 940℃, pressure over 100 MPa and holding time of 3 h, were obtained. Tensile properties after different heat treatments show that both the geometry of samples and cooling rate have a significant influence on mechanical properties. Finite element method was used to predict the temperature field distribution during HIPped sample cooling, and the experimental results are in agreement with simulation prediction. The interaction of HIPping parameters was analyzed based on the response surface methodology(RSM) in this study.
Lei Xu1，Ruipeng Guo1,2，Chunguang Bai1，Jiafeng Lei1，Rui Yang1
1. Institute of Metal Research, Chinese Academy of Sciences2. School of Materials and Metallurgy, Northeastern University
摘 要：The effects of temperature and pressure on density, microstructure and mechanical properties of powder compacts during hot isostatic pressing(HIPping) were investigated. Optimized HIPping parameters of temperature range from 900 to 940℃, pressure over 100 MPa and holding time of 3 h, were obtained. Tensile properties after different heat treatments show that both the geometry of samples and cooling rate have a significant influence on mechanical properties. Finite element method was used to predict the temperature field distribution during HIPped sample cooling, and the experimental results are in agreement with simulation prediction. The interaction of HIPping parameters was analyzed based on the response surface methodology(RSM) in this study.
关键词：
