Effects of alloying elements on microstructure and erosion resistance of Fe-C-Cr weld surfacing layer

被引：0

作者：

Sun, DQ ^{[1
]}

Wang, WQ ^{[1
]}

Xuan, ZZ ^{[1
]}

Xu, Y ^{[1
]}

Zhou, ZF ^{[1
]}

机构：

[1] Jilin Univ, Sch Mat Sci & Engn, Changchun 130025, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2003年 / 19卷 / 04期

关键词：

weld surfacing layer; alloying elements; erosion resistance;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effects of alloying elements on microstructure, and erosion resistance of Fe-C-Cr weld surfacing layer have been studied. The experimental results show that increasing C and Cr content favors improving the erosion resistance of the layer, and the excessive C and Cr result in decreasing the erosion resistance at 90 deg. erosion. That Mo, Nb or Ti improves the erosion resistance of Fe-C-Cr weld surfacing layer is mainly attributed to increasing the amount of M7C3 and forming fine NbC or TiC in austenite matrix, but the excessive Mo, Nb or Ti is unfavorable. The addition of Mo, Nb and Ti in proper combination possesses stronger effect on improving the erosion resistance and the erosion resistance (epsilon(A)) of Fe-C-Cr weld surfacing layer with fine NbC, TiC and M7C3 distributing uniformly in austenite matrix obviously increases to 2.81 at 15 deg. erosion and 2.88 at 90 deg. erosion when the layer composition is 3.05C, 20.58Cr, 1.88Mo, 2.00Nb and 1.05Ti (in wt pct).

引用

页码：351 / 354

页数：4