Investigation on wear and damage performance of laser cladding Co-based alloy on single wheel or rail material

Huo ming Guo, Qian Wang, Wen jian Wang*, Jun Guo, Qi yue Liu, Min hao Zhu

*Corresponding author for this work

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

The aim of this study is to investigate the microstructure and wear behavior of laser cladding Co-based alloy coating on single wheel or rail material (the laser cladding coating is applied only to the wheel or to the rail) using a rolling-sliding wear test apparatus. The coating of laser cladding Co-based alloy consists of dendrite and eutectic. Single-treated wheel or rail specimen undergone the laser cladding treatment effectively decreases rolling friction coefficient and improve wear resistance of both wheel and rail materials. Single-treated wheel or rail roller presents mild wear damage. Furthermore, it is helpful to alleviate the surface damage and plastic flow of wheel and rail rollers. It is concluded that the laser cladding Co-based alloy coating is suitable for single treatment of wheel or rail material. However, further work should be carried out to clarify the rolling contact fatigue mechanism and to characterize the laser cladding Co-based alloy coating.

Original languageEnglish (US)
Pages (from-to)329-337
Number of pages9
JournalWear
Volume328-329
DOIs
StatePublished - Apr 5 2015

Keywords

  • Laser cladding
  • Microstructure
  • Rolling wear
  • Surface damage
  • Wheel/rail materials

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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