Variation of the mechanical properties of tungsten heavy alloys tested at different temperatures

Abstract

Abstract The high‐temperature mechanical properties of 95W‐3.5Ni‐1.5Fe and 95W‐4.5Ni‐0.5Co alloys were investigated in the temperature range of room temperature to1100°C. The yield strength and tensile strengths declined gradually, and the ductility of both alloys increased as the testing temperature was increased to 300°C. All the three properties reached a plateau at temperatures between 300 and 500°C in the case of 95W‐3.5Ni‐1.5Fe and at temperatures between 350 and 700°C in the case of 95W‐4.5Ni‐0.5Co. Thereafter, the ductility as well as yield and tensile strengths decreased considerably.