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What is the impact of the manufacturing process of titanium equipment on its corrosion resistance performance?

Titanium equipment uses various processing methods to complete the processing and assembly of parts and components during the manufacturing process, such as casting, forging, pressure processing, mechanical processing, welding, and heat treatment. In most cases, these processing techniques do not have a significant impact on the corrosion resistance of titanium. However, in some cases, the processing technology increases the internal stress of the metal and causes changes in chemical composition and metallographic structure, leading to corrosion, brushing, and localized corrosion of titanium equipment. If the content, size, distribution or formation of new phases of titanium are changed due to the effect of welding thermal cycle. And it leads to selective corrosion of phases or new phases in the weld seam. Due to residual stresses generated by welding or other processing techniques, titanium equipment experiences stress corrosion cracking. Due to improper welding, hot working, and heat treatment processes, poor surface protection of titanium, or prolonged exposure to high temperature zones, it may increase the hydrogen content of the weld, leading to hydrogen embrittlement in the weld. Due to welding defects (such as pores, inclusions, cracks, etc.) causing pitting or crevice corrosion on the titanium surface

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