钛的氩弧焊试件的应力腐蚀的实验研究

Stress-corrosion Test of TIG Welded CP-Ti

纯钛的氩弧焊试件承受 2 6 1MPa ,37℃人工唾液 3个月的应力腐蚀试验后 ,力学性能无明显改变 (P >0 0 5 ) ,表面无颜色改变和显微裂纹 ,表明其具有好的抗应力腐蚀性能。

In this study TIG (Tungsten Inert Gas)welded CP Ti were subjected to stress corrosion test under 261 MPa in artificial saliva of 37 ℃ for 3 months. No significant difference was noted on mechanical test (P>0.05). No color changed and no micro crack on the sample's surface yet. These results indicate that TIG welded CP Ti offers excellent resistance to stress corrosion.