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
收藏
页码：1780 / +
页数：2
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