COMPUTER AIDED DESIGN OF Ni-BASED SINGLE CRYSTAL SUPERALLOY FOR INDUSTRIAL GAS TURBINE BLADES

摘要：

　　The influence of molybdenum,tungsten and cobalt on stress-rupture properties of single crystal superalloy PWA1483 has been investigated using the simulated calculation of JMatPro software which has been widely used to develop single crystal superalloy,and the effect of alloying element on the stability of strengthening phase has been revealed by using the Thermo-Calc software.Those properties calculation results showed that the increasing of alloy content could facilitate the precipitation of TCP phases and increase the lattice misfit between γ and γ phase,and the effect of molybdenum,tantalum was the strongest and that of cobalt was the weakest.Then the chemical composition was optimized,and the selected compositions showed excellent microstructure stability and stress-rupture properties by the confirmation of d-electrons concept and software calculation.

关键词： Single crystal superalloy simulated calculation chemical composition

作者: Xianping Wei Xiufang Gong Gongxian Yang Haiwei Wang Haisong Li Xueda Chen Zhenhuan Gao Yongfeng Xu Ming Yang

作者单位: Material Research Center of Dongfang Turbine Co.,LTD,Deyang,Sichuan,618000,China;Long-Life High Temperature Materials Key Laboratory of Sichuan Province,Deyang,Sichuan,618000,China

会议类型: 国际会议

会议名称: Energy Materials 2014(第一届能源材料国际会议)

会议地点: 西安

会议语种:英文

页码: 411-416

在线出版日期: 2014-11-04（万方平台首次上网日期，不代表论文的发表时间）