Microstructural and tribological observations in metallic glass forming alloy layers produced by high-power lasers

D.T.A. Matthews*, V. Ocelík, J.Th.M. De Hosson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

Layers of Cu-based metallic glass forming compositions have been produced using high-power lasers. Laser surface remelting and laser cladding techniques provide sufficient cooling rates to form amorphous individual laser tracks and even coatings. The layers have been characterised by SEM, TEM, confocal and optical microscopy which have shown the layers may be fully amorphous, or (nano)crystalline. Hardness testing reveals that high hardness values are attainable for the layers ( 700 HV). Shear banding is found to be initiated during indentation testing. The processing of laser remelted layers developed from initial cladding has been analyzed and parameters are outlined which govern layer thickness, track width and ultimately the microstructural appearance of the layers.

Original languageEnglish
Title of host publicationComputer Methods and Experimental Measurements for Surface Effects and Contact Mechanics VIII
EditorsJ.Th.M. De Hosson, C.A. Brebbia, S.I. Nishida
PublisherWIT Press
Pages33-42
Number of pages10
ISBN (Print)978-1-84564-073-6
DOIs
Publication statusPublished - 1 Dec 2007
Externally publishedYes
Event8th International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics, CONTACT/SURFACE 2007 - Ashurst, United Kingdom
Duration: 16 May 200718 May 2007
Conference number: 8

Publication series

NameWIT Transactions on Engineering Sciences
PublisherWIT Press
Volume55
ISSN (Print)1743-3533

Conference

Conference8th International Conference on Computer Methods and Experimental Measurements for Surface and Contact Mechanics, CONTACT/SURFACE 2007
Abbreviated titleCONTACT/SURFACE
CountryUnited Kingdom
CityAshurst
Period16/05/0718/05/07

Keywords

  • Amorphous
  • Friction
  • Hardness
  • Laser cladding

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