Tensile, Impact and Fatigue Properties of Ultra-fine Grained α+β Type Titanium Alloys Prepared by Hydrogen Treatment

摘要

Recently, the refinement into ultra-fine grains in the field of metallic materials has been attracting a great deal of attention. One of the few methods available for creating ultra-fine grains is the hydrogen treatment, which easily produces grain sizes of 1 to 3μm in titanium materials. This paper describes the characteristics of mechanical properties, such as tensile strength and elongation, of ultra-fine grained α+β type titanium alloys utilizing this method.