Ti–Mo alloys with various Mo contents from 6wt% to 14wt% were processed by spark plasma sintering based on elemental powders.The influence of sintering temperature and Mo content on the microstructure and mechanical properties of the resulting alloys were investigated.For each Mo concentration,the optimum sintering temperature was determined,resulting in a fully dense and uniform microstructure of the alloy.The optimized sintering temperature gradually increases in the range of 1100–1300°C with the increase in Mo content.The microstructure of the Ti–(6–12)Mo alloy consists of acicular α phase surrounded by equiaxed grains of β phase,while the Ti–14Mo alloy only contains single β phase.A small amount of fine α lath precipitated from β phase contributes to the improvement in strength and hardness of the alloys.Under the sintering condition at 1250°C,the Ti–12Mo alloy is found to possess superior mechanical properties with the Vickers hardness of Hv 472,the compressive yield strength of 2182 MPa,the compression rate of 32.7%,and the elastic modulus of 72.1 GPa.These results demonstrate that Ti–Mo alloys fabricated via spark plasma sintering are indeed a perspective candidate alloy for dental applications.
展开▼
机译:Microstructural evolution and mechanical properties of FeCoCrNiCu high entropy alloys:a microstructure-based constitutive model and a molecular dynamics simulation study
机译:Etude du Comportement micro-mecanique d'Une Vitroceramique a subst de siO2-al2O3-Li2O en Liaison avec la microstructure(siO2-al2O3-Li2O玻璃陶瓷的微观力学行为及其与微结构的关系研究)