Surface modification of titanium alloy with the Ti 3 Al + TiB 2 /TiN composite coatings | Zendy

Li J. N. | Zendy; Chen C. Z. | Zendy; Cui B. B. | Zendy; Squartini T. | Zendy

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Surface modification of titanium alloy with the Ti 3 Al + TiB 2 /TiN composite coatings

Author(s) -

Li J. N.,

Chen C. Z.,

Cui B. B.,

Squartini T.

Publication year - 2011

Publication title -

surface and interface analysis

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.52

H-Index - 90

eISSN - 1096-9918

pISSN - 0142-2421

DOI - 10.1002/sia.3809

Subject(s) - tin , materials science , alloy , metallurgy , composite number , indentation hardness , coating , titanium alloy , substrate (aquarium) , titanium , microstructure , composite material , oceanography , geology

Laser cladding of the Ti 3 Al + TiB 2 pre‐placed alloy powder on the Ti–6Al–4 V alloy in nitrogen protective atmosphere can form the Ti 3 Al + TiB 2 /TiN composite coating, which can dramatically improve the wear resistance of the Ti–6Al–4 V alloy surface. In this study, the Ti 3 Al + TiB 2 /TiN composite coatings on the Ti–6Al–4 V alloy have been researched by means of X‐ray diffraction, SEM and energy dispersive spectrometry. It was found that there is a metallurgical combination between the Ti 3 Al + TiB 2 /TiN composite coating and the substrate. The microhardness of the Ti 3 Al + TiB 2 /TiN composite coatings were 3 ~ 4 times higher than that of the Ti–6Al–4 V alloy because of the actions of the Ti 3 Al + TiB 2 /TiN hard phases and the grain refinement strengthening. Moreover, the wear mass losses of the Ti 3 Al + TiB 2 /TiN composite coatings were much lower than that of the substrate. Copyright © 2011 John Wiley & Sons, Ltd.

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