激光熔敷镍基合金的耐蚀性
来源期刊：中国有色金属学报1999年第2期
论文作者：周融 张祥宝 司云森
文章页码：278 - 282
关键词：镍基合金 激光表面重熔 激光熔敷 耐蚀性
Key words：Ni base alloy; laser surface remelting ; laser cladding ;corrosion resistance
摘 要：利用激光表面重熔和激光熔敷镍基合金的方法，对2Cr13钢汽轮机末级叶片进行了表面改性处理。经显微组织观察、物相分析和阳极极化曲线测定证明，激光处理后的合金组织更细小，表面耐蚀性比处理前更好，熔敷镍基G112合金后的耐蚀性提高尤其显著。实验得出了提高其耐蚀性的优化工艺条件。
Abstract: The laser surface remelting and clad Ni base alloys being used, the surface of last stage blades of 2Cr13 steel in steam turbines was modified to improve corrosion resistance. The microstructures, the phase analysis and the anodic polarization curves were examined. The results showed that the microstructure is more fine and the surface possesses better corrosion resistance than that before laser treatment. The optimal processing has been given for improvement surface corrosion resistance, through experiments.
