Influence of Alloy Elements on Machinability, Weldability and Hot Deformation Resistance in Alpha-beta Titanium Alloys Containing Cr,Fe and C
Alpha-beta titanium alloys represented as Ti-6A1-4V have been applied to parts of aircrafts,automotives and motorcycles because of their excellent specific strength,heat resistance and corrosion resistance. But the popular alloy Ti-6A1-4V is inferior in forgeability and machinability,accordingly the cost of processing is so expensive in addition to the raw materials. In the interest of forgeability,KS EL-F (Ti-4. 5A1-4CH). 5Fe-0. 2C) has been developed with excellent hot workability, whereas there was the issue that the tool-tip wear on machining was increased in proportion to the volume fraction of TiC precipitates in KS EL-F. Therefore in this study the influence of alloy elements Al,Cr,Fe and C on machinability and weldability was investigated in addition to hot workability, and the new alloy KS ELF 531C (Ti-4. 5A1-2. 5Cr-l. 2Fe-0. 1C) has been developed which is a well-balanced chemical composition on machinability, weldability and hot deformation resistance.
Alpha-beta titanium alloy machinability weldability hot deformation resistance the new developed alloy KS EL-F 531C
Shogo Murakami Masahiro Nomura Kudo Takeshi Shinya Ishigai Akira Isoe
Takasago works ,KOBE STEEL,LTD. ,Takasago, 676-8670 Japan Materials Research Laboratory,KOBE STEEL,LTD. ,Kobe, 651-2271 Japan Titanium Technology Department,KOBE STEEL,LTD. , Tokyo, 141-8868, Japan (now JAPAN AEROFORGE,LTD. ,T THE MATERIALS PROCESS TECHNOLOGY CENTER (Sokeizai Center), 105-0011 ,Tokyo,Japan
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
980-983
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）