Microstructures and wear resistance of iron-based protective coatings by Supersonic Arc Spraying

被引：2
|
作者：
Li, Shengshou [1 ]
Liang, Tianquan [2 ]
Yang, Xianfang [2 ]
Zhao, Cuihua [2 ]
机构：
[1] Guangxi Guineng Sci & Technol Dev Co Ltd, Nanning 530007, Peoples R China
[2] Guangxi Univ, Sch Mat Sci & Engn, Nanning 530004, Peoples R China
来源：
APPLIED MECHANICS, MATERIALS AND MANUFACTURING IV | 2014年 / 670-671卷
基金：
中国国家自然科学基金;
关键词：
Iron-based coating; Microstructures; Hardness; Wear resistance; Supersonic arc spraying; ALLOY; AL; BEHAVIOR;
D O I：
10.4028/www.scientific.net/AMM.670-671.554
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The characteristics in microstructure, surface morphology, chemical composition, hardness and wear resistance of the three protective iron-based compound coatings prepared by Supersonic Arc Spraying (HVAS), were investigated by X-ray diffraction (XRD), Field emission scanning electron microscope (FESEM), Energy disperse spectroscopy (EDS) and Rockwell apparatus in this paper. It is indicated that the three coatings are typical layer and compact structures. The coatings are composed of Fe(s.s) phase and various kinds of ferric oxides, chrome carbides and/ or intermetallic phase distributing along the interface of lamellar layers. More Cr and Ti, Al elements in the cored wires can degrease the diameter and alternate the morphologies of the holes in the coating, resulting from the formation of oxides, carbides and intermetallic phase during depositing the coating. The results indicate the SXTiAlC coating shows the most excellent wear performance among the three coatings. The wear behavior and mechanism are discussed.
引用
收藏
页码：554 / 559
页数：6
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