Microstructure and wear properties of TIC/Fe-based composite coating prepared by PTA weld-surfacing process

被引：0

作者：

Zhao, Zhongli ^{[1
]}

Dang, Kaifang ^{[1
]}

Liu, Junhai ^{[2
]}

Wu, Daming ^{[1
]}

Liu, Ying ^{[1
]}

Yu, Haipeng ^{[1
]}

Zheng, Xiuting ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China

[2] Weihai Vocat Coll, Weihai 264210, Shandong, Peoples R China

来源：

ADVANCES IN MATERIALS AND MATERIALS PROCESSING, PTS 1-3 | 2013年 / 652-654卷

关键词：

Plasma-transferred arc weld-surfacing; composite coating; TiC particles; wear resistance; IN-SITU FORMATION; IRON;

D O I：

10.4028/www.scientific.net/AMR.652-654.1780

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The TiC/Fe-based composite coating was fabricated by plasma transferred arc (PTA) weld-surfacing process on substrate of Q235 steel with the mixture of ferrotitanium, ferrochromium and ferrosilicium powders. The microstructure and wear properties of the coating were investigated by means of X-ray diffraction (XRD), scanning electron micrograph (SEM), energy dispersive X-ray analysis (EDS), microhardness test and wear test. The results show that the coating consists of TiC, (Cr,Fe)(7)C-3 and austenite. The composite coating is metallurgically bonded to the Q235 steel substrate. TiC particles formed by PTA weld-surfacing process presented cubic or "dendrite flower-like" morphology. The wear-resisting property of the coating was greatly improved compared with the substrate. The coating has excellent adhesive wear and grinding abrasion resisting force.

引用

页码：1780 / +

页数：2

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