Oxidation behaviour of plasma surface alloying on Ti6Al4V alloy. (2nd January 2018)

• Record Type: Journal Article
• Authors: Wei, D.-B.; Zhang, P.-Z.; Yao, Z.-J.; Wei, X.-F.; Zhou, J.-T.; Chen, X.-H.
• Is Part Of: Surface engineering. Volume 34:Number 1(2018)
• Page Start: 14
• Page End: 21
• Publication Date: 2018-01-02
• Subjects: Plasma surface alloying -- high temperature oxidation resistant coatings -- Titanium alloys; Surfaces (Technology) -- Periodicals; Coatings -- Periodicals; 620.4405
• DOI: 10.1179/1743294415Y.0000000095
• Languages: English
• ISSNs: 0267-0844

Abstract

ABSTRACT: Ti–CrNi alloy coatings with 20, 40, 60 and 80 at-%Ni were prepared on Ti6Al4V alloy surface by double glow plasma surface alloying technique. The cyclic oxidation behaviour of the coatings was investigated at 750, 850 and 950°C. The results show that each coating has a complete structure of settled layer, mutual diffusion layer and sputtering affected zone. When the Ni content was 40 at-%, the Ti–CrNi alloy coating showed the best cyclic oxidation resistance. The oxide scale with 'Cr2 O3 film+NiO film' structure showed the best resistance to peeling.