TIG焊对工业纯锆R60702接头腐蚀性能的影响

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Effect of TIG Welding on Corrosion Resistance of Zirconium R60702

Science and Technology School of Mechanical Engineering, East China University, Shanghai, 200237, China

摘要: 通过对工业纯锆(R60702)钨极惰性气体保护焊(TIG)保护效果和不平衡条件结晶的运用,制备焊接接头的显微组织试样及其焊接接头的腐蚀电位测定试样。观察接头在高倍金相显微镜下的显微组织特征,测定焊接接头极化曲线,研究R60702的显微第二相的分布及对接头组织腐蚀性能的影响。研究表明热影响区的耐腐蚀效果最差。
- 工业纯锆R60702 /
- TIG /
- 焊接接头 /
- 腐蚀性能
Abstract: Protection and the nonequilibrium crystallization of TIG welding on Zr R60702 were applied to prepare the specimens of welded joints for metallographic observation and corrosion potential determination.Microstructures of the specimens were analyzed with a high power metallographic microscope.Polarization curves of the specimens were measured for evaluation of the corrosion properties.The microstructure and second phase distribution of Zr R60702 were studied on their influence to the corrosion properties.The results indicate that the corrosion resistance properties of the HAZ is lower.
- Zr R60702 /
- TIG welding /
- Welded joints /
- Corrosion properties