The Influence of the Re-melting Times on Microstructure and Mechanical Properties for Revert Alloy K452

摘要：

　　The influence of the re-melting times on chemical composition,microstructure,and mechanical properties of revert alloy K452 were systemically investigated.It was shown that the key factor in the engineering application was the control of gas content and porosities level in revert alloy.By an advancing technology in combination with the superheat treatment,adding a small amount of alloying elements such as C,Al,Ti,and using ceramic foam filters during vacuum induction melting,the composition and mechanical properties of the revert alloy in addition of 50% scrap were similar to that in the virgin alloy,which has successfully been used in applications for nozzle vanes of some new gas turbines.

关键词： Superalloy K452:Revert alloy:VIM technology:Gas content:Mechanical properties

作者: Chao Yuan Jianting Guo Changjiang Liu Jieshan Hou Gusong Li

作者单位: Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Harbin Turbine Cc, Ltd, Harbin 150046, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 715-722

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）