Toward prediction of microstructural evolution during laser surface alloying

S. S. Babu, R. P. Martukanitz, K. D. Parks, S. A. David

Research output: Contribution to journalArticlepeer-review

44 Scopus citations

Abstract

The stability of tungsten carbide particles in iron-rich and nickel-rich liquid during the laser surface alloying (LSA) process was investigated. Kinetic calculations indicate a rapid dissolution of tungsten carbide particles in iron-rich liquid, as compared with the dissolution rate in nickel-rich liquid. Optical microscopy indicated a heterogeneous microstructure around the tungsten particles that is in agreement with concentration gradients predicted by kinetic calculations. The work demonstrates the applicability of computational thermodynamics and kinetic models for the LSA process.

Original languageEnglish (US)
Article number220
Pages (from-to)1189-1200
Number of pages12
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume33
Issue number4
DOIs
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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