Corrosion resistance of titanium alloy in high sour environment

The optical microscope was used to research microstructure of Titanium alloy and its welds, then corrosion weight loss method, NACE TM0177 A method (Standard Tensile Test) and standard Bent-Beam test method were used to research corrosion resistance performance of electrochemistry and environmental cracking in high sour environment. The results showed that the microstructure of TA2 was single α phase, welds were big α+α phase or block α+flaky α+α phase, and microstructure of heat affected zone was tinier than welds. Titanium alloy had good corrosion resistance in high sour environment.