Solid Metal Induced Embrittlement of Titanium Alloys in Contact with Copper
Solid Metal Induced Embrittlement (SMIE) is caused by a specific combination of a susceptible alloy,tensile stress and a solid metal. Solid copper is commonly used in various manufacturing processes,e. g. in welding electrodes and clamping fixtures,during the manufacturing and handling of titanium alloy parts for the aerospace industry. An initial study indicated that copper in contact with titanium could lead to SMIE and was the reason for initiating the current work. Three titanium alloys;Ti-8Al-1Mo-lV,Ti6Al-2Sn-4Zr-2Mo and Ti-6Al-4V,have been evaluated with respect to SMIE in contact with copper. The evaluation was carried out by using a modified U-bend test method adapted from SAE ARP 1795, a standard used for Stress-Corrosion Cracking (SCO evaluation of titanium alloys in contact with cleaning solutions. Gold was also investigated in order to validate the reliability of the test method since it has been reported that titanium alloys undergo SMIE in contact with solid gold. The results show that both Ti-8Al1Mo-1V and Ti-6Al-2Sn-4Zr-2Mo are susceptible to SMIE in contact with copper whereas SMIE was not observed with Ti-6Al-4V.
Solid metal induced embrittlement (SMIE) titanium alloys copper gold Ti-6Al-4V Ti-8Al-1Mo-1V Ti-6Al-2Sn-4Zr-2Mo
Pia (A)kerfeldt Robert Pederson Marta-Lena Antti
Division of Engineering Materials,Lulea University of Technology,S-97181 Lulea,Sweden Division of Engineering Materials,Lulea University of Technology,S-97181 Lulea,Sweden Department of
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1868-1871
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）