本文采取在0Cr13不锈钢中加入稀土元素Y，研究稀土元素Y对0Cr13不锈钢组织及耐腐蚀性能的影响，通过金相组织观察，夹杂物成分分析，周期浸泡实验，自腐蚀电位检测，腐蚀交流阻抗谱测量等方法研究了稀土元素Y对0Cr13不锈钢组织及腐蚀性能的影响。结果表明：稀土元素Y使0Cr13不锈钢的组织细化、均匀，形成稀土复合物，减少了S、O夹杂物的危害；稀土元素Y可有效提高0Cr13不锈钢的抗腐蚀能力。

Abstract: In order to study the effect of rare earth Y on microstructure and corrosion property of 0Cr13 stainless steel, the rare earth Y was put into the 0Cr13 stainless steel, the effect of rare earth Y on microstructure and corrosion property of 0Cr13 stainless steel was researched by means of observing metallographic microstructure, analyzing components of inclusion, soaking periodically, measuring natural corrosion electrical potential, measuring natural corrosion alternating current impedance. The results shows that the microstructure of 0Cr13 stainless steel is refined and homogenized, rare earth compound forms, and the inclusion hazards of S、O is reduced by the addition of rare earth Y. Rare earth Y can increase effectively the corrosion resistance of 0Cr13 stainless steel.