高钨含量钼钨合金板组织与性能研究  

Microstructure and Properties of Molybdenum-Tungsten Alloy Plate with High Tungsten Content

作　　者：郭雪琪 申坤瑞 郭鑫晴 GUO Xueqi;SHEN Kunrui;GUO Xinqing(ATTL Advanced Materials Co.,Ltd.,Tianjin 301800,China)

机构地区：[1]安泰天龙钨钼科技有限公司,天津301800

出　　处：《中国钼业》2024年第4期48-53,共6页China Molybdenum Industry

摘　　要：研究了不同高钨含量钼钨合金板的金相组织、力学性能及断口形貌的差异。结果表明:在1500℃退火温度下,Mo-50W合金板完成晶粒再结晶,Mo-70W合金板开始出现再结晶,而纯钨板晶粒进一步长大;钼钨合金板的硬度随退火温度的升高呈下降趋势,在同一退火温度下,钼钨合金板的硬度值随W含量的增加而增大;钼钨合金板在1200℃及以下时抗拉强度小于纯钨板,1300℃及以上时高于纯钨板。The article studies the differences in the microstructure,mechanical properties and fracture morphology of molybdenum-tungsten alloy plates with different high tungsten content.The results show that at the annealing temperature of 1500℃,the Mo-50W alloy plate completes grain recrystallization,the Mo-70W alloy plate begins to recrystallize,and the pure tungsten plate grains further grow;the hardness of the molybdenum-tungsten alloy plate increases with the annealing temperature.The increase shows a downward trend.At the same annealing temperature,the hardness value of molybdenum-tungsten alloy plate increases with the increase of W content;the tensile strength of molybdenum-tungsten alloy plate is lower than that of pure tungsten plate at 1200℃and below,and higher than that of pure tungsten plate at 1300℃and above.

关 键 词：钼钨合金 热处理 金相组织 高温力学性能 

分 类 号：TG146.4[一般工业技术—材料科学与工程]