Abstract. High-entropy alloy is a promising structural material for high-temperature service applications due to the designable superior properties. Superplasticity, normally achieved at relatively high temperature and low strain rate, enables difficult formation materials manufacture complex-shaped parts. This paper presents feasibility experimental study on deformation microstructure of CoFeM...

A nano/ultra-fine grain Al-0.2wt% Zr alloy was produced by accumulated roll bonding (ARB) processafter 10 cycles. The fraction of high angle grain boundaries increased from 8% to 65.4% during 10passes during ARB process. This alloy was subjected to tensile test at different temperatures (523,573and 623 K) and strain rates (0.1 and 0.01 s-1). The optimum condition of temperature and strain rate ...

Abstract. Ultra-severe plastic deformation (ulta-SPD) is a terminology used for the introduction of extremely large shear strains (over 1000) to material so that thickness sheared phases geometrically reaches subnanometer level. Under such extreme shearing conditions, new nanostructured with unique properties are formed even from immiscible systems. Various metallic alloys and ceramics were dev...

Abstract Superelasticity is the ability of a plastically deformed solid to spontaneously recover its shape upon unloading due stress loading. From discovery in Au–Cd alloys 1932, superelasticity had been believed be limited certain until “organic superelasticity” 2014, which revealed it general phenomenon observed organic crystals along with ferroelasticity—reversible plastic deformability that...