Laser surface alloying of Incoloy 800H with silicon carbide: microstructural aspects

S. M. Zhu, L. Wang, G. B. Li, S. C. Tjong

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Incoloy 800H was laser surface alloyed with SiC powders. Transmission electron microscopy examination of the alloy surface revealed that M7C3 carbides were precipitated in the melted zone. Such precipitation was caused by the decomposition of the SiC particles during the laser melting. Furthermore, it was found that the hardness of the surface-modified layer shows a pronounced increase after laser treatment.

Original languageEnglish
Pages (from-to)1-2
Number of pages2
JournalMaterials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing
Issue number1-2
Publication statusPublished - 1 Jan 1995
Externally publishedYes


  • Incoloy 800H
  • Laser surface alloying
  • Microstructure
  • SiC particles
  • Transmission electron microscopy

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