PTA clad (Cr, Fe)7C3/γ-Fe in situ ceramal composite coating

被引：20

作者：

Liu, Junbo ^{[1
]}

Wang, Limei

Huang, Jihua

机构：

[1] Weifang Univ, Sch Mech & Elect Engn, Shandong 261061, Weifang, Peoples R China

[2] Weifang Univ, Sch Informat & Control Engn, Shandong 261061, Weifang, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING | 2006年 / 13卷 / 06期

关键词：

plasma-transferred arc cladding; (Cr; Fe)(7)C-3/gamma-Fe; coating; microstructure; wear-resistance;

D O I：

10.1016/S1005-8850(06)60109-6

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

A wear-resistant (Cr, Fe)(7)C-3/gamma-Fe in situ ceramal composite coating was fabricated on the substrate of 0.45wt%C carbon steel by a plasma-transferred arc cladding process using the Fe-Cr-C elemental powder blends. The microstructure, microhardness, and dry-sliding wear resistance of the coating were evaluated. The results indicate that the microstructure of the coating, which was composed of (Cr, Fe)(7)C-3 primary phase uniformly distributed in the gamma-Fe, and the (Cr, Fe)(7)C-3 eutectic matrix was metallurgically bonded to the 0.45wt%C carbon steel substrate. From substrate to coating, the microstructure of the coating exhibited an evident epitaxial growth character. The coating, indehiscent and tack-free, had high hardness and appropriate gradient. It had excellent wear resistance under the dry sliding wear test condition.

引用

页码：538 / 541

页数：4

共 13 条

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Wear behaviour of laser cladded and plasma sprayed WC-Co coatings [J].