不同钨含量的钼钨合金棒烧结及旋锻温度研究  

Sintering and Spinning Forging Temperature of Molybdenum Tungsten Alloy Rod with Different Tungsten Content

作　　者：席莎[1] 姚成 王诗雨 陈成[1] 朱琦[1] 王娜[1] 周莎 张晓[1] XI Sha;YAO Cheng;WANG Shiyu;CHEN Cheng;ZHU Qi;WANG Na;ZHOU Sha;ZHANG Xiao(Technical Center,Jinduicheng Molybdenum Co.,Ltd.,Xi'an 710077,Shaanxi,China)

机构地区：[1]金堆城钼业股份有限公司技术中心,陕西西安710077

出　　处：《中国钼业》2025年第2期60-64,共5页China Molybdenum Industry

基　　金：创新人才推进计划-青年科技新星项目(2022KJXX-06)。

摘　　要：采用粉末冶金法制备不同钨含量的钼钨合金棒,研究不同烧结工艺对合金棒密度及微观组织的影响,以及不同旋锻工艺对合金棒成品率和质量损失率的影响。结果表明:Mo-30W、Mo-50W合金的最佳烧结工艺分别为2180℃、7 h和2230℃、7 h。在各自的最佳烧结工艺下,合金棒的相对密度达到99.0%~99.3%,微观组织均匀细小,且钼钨合金的晶粒大小随W含量的增加而减小。Mo-30W、Mo-50W合金的最佳旋锻温度为1330~1400℃及1450~1520℃,在各自的最佳旋锻温度下,合金棒的成品率达到92.3%以上,质量损失率降低到1.12%~1.15%之间。The molybdenum-tungsten alloy rods with different tungsten content were prepared by powder metallurgy.The effects of different sintering processes on the density and microstructure of alloy rods were studied.The effects of different spinning forging processes on the yield and mass loss rate of alloy bars are also discussed.The results show that the optimum sintering processes of Mo-30W and Mo-50W alloys are 2180℃,7 h and 2230℃,7 h respectively.Under the optimal sintering process,the relative density of the alloy rod reaches about 99.0%~99.3%,the microstructure is uniform and fine,and the grain of molybdenum tungsten alloy decreases gradually with the increase of W content.The optimum spinning forging temperature of Mo-30W and Mo-50W alloys are 1330~1400℃ and 1450~1520℃respectively.Under the optimum spinning forging temperature,the yield of alloy bars reaches more than 92.3%,and the mass loss rate is reduced to 1.12%~1.15%.

关 键 词：钼钨合金 烧结工艺 旋锻工艺 

分 类 号：TG113.262[金属学及工艺—物理冶金] TG116.7[金属学及工艺—金属学]