NGHIÊN CỨU ẢNH HƯỞNG CỦA NHIỆT ĐỘ Ủ SAU GIA CÔNG BIẾN DẠNG TỚI CẤU TRÚC VÀ CƠ TÍNH VẬT LIỆU MOLIPDEN

In this paper, the results of a study on the effect of annealing temperature on the structure and mechanical properties of molybdenum materials made by the powder metallurgy method are presented. The results of experimental studies have shown the optimal annealing temperature range for molybdenum materials, showing the change in particle size and particle shape when affected by temperature. Thereby, a heat treatment technology mode after deformation machining for molybdenum powder materials and their alloy groups is proposed. The EDX results confirm the resistance to oxidation of the surface of the Mo sample when sintered in a hydrogen atmosphere.