多元低合金对高铬锰白口铸铁组织和性能的影响

Effect of Multi-element Low Alloys on the Structure and Properties of High Cr-Mn White Cast Iron

该文利用正交设计试验探讨了Nb、V、Cu在高铬锰白口铸铁中的合金化作用和稀土硅铁的变质作用。结果表明 ,合金元素能够细化晶粒 ,改善碳化物的形貌和分布 ,提高力学性能和耐磨性。确定了多元低合金高铬锰白口铸铁的最佳成分和热处理工艺。

An investigation was concerned with the effect of alloying elements Nb,V,Cu and rare earth (RE) modifier on the structure and properties of high Cr Mn white cast iron (15 %Cr,4 %Mn) by means of orthogonal matrix.The results show that alloying elements and rare earth can refine grain,change carbide morphology and distribution,and increase mechanical properties and wear resistant properties.The optimum chemical composition and heat treatment process of multi element low alloys high Cr Mn white cast iron have been determined.