Feasibility study on preparation of coatings on Ti-6Al-4V by combined ultrasonic impact treatment and electrospark deposition

被引：29

作者：

Liu, Yang ^{[1
]}

Wang, Dongpo ^{[1
]}

Deng, Caiyan ^{[1
]}

Huo, Lixing ^{[1
]}

Wang, Lijun ^{[1
]}

Cao, Shu ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China

来源：

MATERIALS & DESIGN | 2014年 / 63卷

基金：

中国国家自然科学基金;

关键词：

Coating; Ultrasonic impact treatment; Electrospark processing; Amorphous phase; Residual stress; Wear; PEENING TREATMENT; WELDED-JOINTS; RESIDUAL-STRESSES; FATIGUE BEHAVIOR; OXIDE COATINGS; WEAR;

D O I：

10.1016/j.matdes.2014.06.061

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel method combining ultrasonic impact treatment (UIT) with electrospark deposition was developed to prepare coatings on Ti-6Al-4V substrates. The microstructure, phase composition, residual stress, microhardness, and wear performance of the coating were studied, and new amorphous and nanocrystalline phases (titanium carbide nitride and iron titanium oxide) were found. In addition, the residual stress in the coating and in the substrate near the coating is compressive stress. The maximum compressive residual stress is about - 717 MPa, and its depth is about 470 mu m. Because of contributions from multiple factors, the wear volume loss of the sample subjected to combined UIT and electrospark processing was reduced by four orders of magnitude compared with that of the base material. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：488 / 492

页数：5

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