【摘 要】
:
通过草酸电解结合组织观察、动电位扫描法和交流阻抗测试研究了直流焊、脉冲焊和固溶处理、稳定化处理对0Cr18Ni9Ti不锈钢的抗晶间腐蚀性和耐点蚀性的影响。结果表明,脉冲焊
【机 构】
:
江苏科技大学先进焊接技术省级重点实验室,江苏科技大学材料科学与工程学院,
论文部分内容阅读
通过草酸电解结合组织观察、动电位扫描法和交流阻抗测试研究了直流焊、脉冲焊和固溶处理、稳定化处理对0Cr18Ni9Ti不锈钢的抗晶间腐蚀性和耐点蚀性的影响。结果表明,脉冲焊比直流焊对晶间腐蚀的不利影响更大;固溶处理可以明显改善焊后材料的耐晶间腐蚀以及耐点蚀性,并增大钝化膜的稳定性。
The effects of DC welding, pulse welding, solution treatment and stabilization treatment on the intergranular corrosion resistance and pitting corrosion resistance of 0Cr18Ni9Ti stainless steel were studied by oxalic acid electrolysis combined with microstructure observation, potentiodynamic scanning and AC impedance measurements. The results show that the pulse welding has more adverse effect on the intergranular corrosion than the DC welding. The solution treatment can obviously improve the intergranular corrosion resistance and pitting corrosion resistance and increase the stability of the passivation film.
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