Effect of thermal spray processing techniques on the microstructure and properties of Ni-based amorphous coatings

S. M. Lee, B. M. Moon, E. Fleury, H. S. Ahn, D. H. Kim, W. T. Kim, D. J. Sordelet

Research output: Contribution to journalConference article

Abstract

Metallic amorphous materials have been widely developed thanks to the outstanding properties including high chemical stability, mechanical strength, and magnetic properties. However, with the exception of a few compositions, the limiting factor is the critical cooling rate for the formation of the amorphous phase. For many applications, it is only the contact surface properties that are important, thus the use of coating techniques such as thermal sprayings has several attractive features. In this paper, we present the microstructure of Ni-based amorphous coatings prepared by laser cladding and vacuum plasma spraying. The utilization of plasma spraying to deposit atomized powder enabled the formation of fully amorphous coating, laser cladding resulted in mostly crystallized structures. Glass forming ability and wear properties of the coatings were discussed as a function of the coating microstructure.

Original languageEnglish
Pages (from-to)2887-2890
Number of pages4
JournalMaterials Science Forum
Volume475-479
Issue numberIV
DOIs
Publication statusPublished - 2005 Jan 1
EventPRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China
Duration: 2004 Nov 22004 Nov 5

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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