The Formation of Ti3Alp/Ti-6Al-4V Surface Layer via Additive Friction Stir Processing Method

Bo LI

Abstract


A Ti3Alp/Ti composite structure was prepared as the surface layer on Ti-6Al-4V alloy substrate via Additive Friction Stir Processing method, by the coupled thermal-mechanical effect and the Ti/Al in-situ reaction mechanism. The post composition homogenization annealing was employed. The reinforcements of Ti-Al intermetallic particles benefited the surface-hardening and anti-wear performance. Formation mechanism and strengthening effect were further elucidated.

Keywords


Additive Friction Stir Processing, Titanium alloys, Surface composite, In-situ reaction


DOI
10.12783/dtmse/amsee2017/14294

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