Effect of simultaneous addition of ferroniobium and ferrotitanium on properties of hardfacing

被引：4

作者：

Liu, Dashuang ^{[1
,2
]}

Wu, Mingfang ^{[1
]}

Long, Weimin ^{[2
]}

Li, Leijun ^{[3
]}

Wei, Ping ^{[4
]}

机构：

[1] Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang, Peoples R China

[2] Zhengzhou Res Inst Mech Engn Co Ltd, Zhengzhou, Henan, Peoples R China

[3] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB, Canada

[4] Jiangsu Univ Sci & Technol, Sch Naval Architecture & Ocean Engn, Zhenjiang, Peoples R China

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2018年 / 34卷 / 18期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Simultaneous addition; Nb and Ti; iron-based; hardfacing; wear resistance; AS-CAST MICROSTRUCTURE; WEAR-RESISTANCE; NIOBIUM; IRON;

D O I：

10.1080/02670836.2018.1524053

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The slag-free self-shielded flux-cored wire with simultaneous addition of ferroniobium (Fe-Nb) and ferrotitanium (Fe-Ti) was developed to fabricate the iron-based hardfacing alloys. The transfer coefficients of Nb and titanium of slag-free self-shielded flux-cored wire were 91.2 and 63.8%, respectively. The changes in microstructures indicate that Nb and Ti addition shifted the carbon concentration in the remaining liquid to one corresponding to the near eutectic state owing to the formation of (Nb, Ti)C which consumed carbon. The wear loss of the hardfacing alloy with 18 wt-% Fe-Nb and 6 wt-% Fe-Ti addition was the smallest among all the alloys owing to the formation of reinforced uniform quadrangle-shaped (Nb, Ti)C carbides in the refined microstructure and the highest hardness.

引用

页码：2231 / 2240

页数：10

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