Metallurgical and Materials Transactions A

, Volume 31, Issue 12, pp 3123–3127 | Cite as

Surface amorphous and crystalline microstructure by alloying zirconium using Nd:YAG pulsed laser

  • X. L. Wu
  • Y. S. Hong
Article
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Abstract

A novel composite coating was synthesized by laser alloying of zirconium nanoparticles on an austenite stainless steel surface using a pulsed Nd:YAG laser. The coating contained duplex microstructures comprising an amorphous phase and an austenitic matrix. A discontinuous zirconium-containing region formed at a depth of 16 µm below the surface. The amorphous phase was present in the zirconium-rich region, with the composition of zirconium ranging from 7.8 to 14.5 at. pct. The formation of the amorphous phase was attributed to the zirconium addition. The hardness, corrosion, and wear-corrosion resistance of the irradiated coating were evidently enhanced compared to those of the stainless steel.

Keywords

Zirconium Austenite Material Transaction Amorphous Phase Crevice Corrosion 
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Copyright information

© ASM International & TMS-The Minerals, Metals and Materials Society 2000

Authors and Affiliations

  • X. L. Wu
    • 1
  • Y. S. Hong
    • 1
  1. 1.State Key Laboratory of Nonlinear MechanicsInstitute of Mechanics, Chinese Academy of SciencesBeijingPeople’s Republic of China

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