Hydrogen sintering, microstructure, and mechanical properties of Ti-10V-2Fe-3Al alloys prepared by the blended elemental method

Abstract

This investigation utilized an economical hydrogen sintering technique to fabricate the Ti-10 V-2Fe-3Al aerospace alloy. We examined the phase and microstructural evolution throughout the densification, hydrogen sintering, and dehydrogenation processes. Hydrogen dissolution prompted titanium deformation, culminating in an ultrafine-grained microstructure reinforced with α-phases. Notably, the hydrogen-sintered alloy showcased a microstructure comparable to that of forged alloys, diverging from traditional sintering approaches. Enhanced tensile and yield strengths were also documented. Collectively, hydrogen sintering presents a viable avenue for augmenting the microstructures and mechanical attributes of economically efficient titanium alloy products.