Laser surface modification of Ti alloys

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Abstract

The laser surface engineering of titanium alloys has been developed over the past 30 years to produce a modified layer up to 1mm depth, thicker than alternative techniques. CW C02 lasers have been the main lasers used for both surface cladding and alloying. Much of the early work was based on laser nitriding forming titanium nitrides throughout the molten pool. Subsequent alloying developments have included the incorporation of carbides, nitrides, oxides and silicides, and also intermetallics and rare earths, added as powders. Laser processing can now tailor surfaces with superior tribological and erosion resistant properties compared to the untreated titanium alloys.
Original languageEnglish
Title of host publicationSurface Engineering of Light Alloys - Aluminium, Magnesium and Titanium Alloys
Place of PublicationCambridge, UK
Pages398-443
Number of pages46
VolumeParts 1-3. Part 2: Surface Engineering Technologies for Light Alloys, Chapter 12
Publication statusPublished - May 2010

Keywords

  • laser melting
  • cladding
  • alloying
  • microstructure
  • tribological properties

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  • Cite this

    Baker, T. N. (2010). Laser surface modification of Ti alloys. In Surface Engineering of Light Alloys - Aluminium, Magnesium and Titanium Alloys (Vol. Parts 1-3. Part 2: Surface Engineering Technologies for Light Alloys, Chapter 12, pp. 398-443).