Enrichment of in-situ synthesized WC by partial dissolution of ex-situ eutectoid-structured WC/W2C particle in the coatings produced by laser hot-wire deposition

被引：17

作者：

Zhao, Shengbin ^{[1
]}

Yang, Lijun ^{[1
]}

Huang, Yiming ^{[1
]}

Xu, Sai ^{[1
]}

机构：

[1] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300350, Peoples R China

来源：

MATERIALS LETTERS | 2020年 / 281卷 / 281期

基金：

中国国家自然科学基金;

关键词：

Laser processing; Metallic composites; Wear and tribology; Microstructure; GROWTH;

D O I：

10.1016/j.matlet.2020.128641

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel additive manufacturing method for fabricating Ni/WC composite coatings by laser hot-wire deposition was proposed. Finely dispersed WC particles were successfully in-situ synthesized by partial dissolution of the ex-situ eutectoid-structured WC/W2C particles during laser deposition. Under the combination effect of the high-volume fraction of ex-situ particles and in-situ synthesized reinforcements, the coating hardness and wear resistance was improved to about 3.5 times and 45 times more than that of substrate. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：4