热处理工艺对铸造Ni-Be合金性能的影响  

Effect of Heat- treatment on the Mechanical Properties of Ni-Be Casting Alloy

作　　者：包淑娟[1] 陈志强[1] 石韵成[1] 

机构地区：[1]洛阳船舶材料研究所,洛阳471039

出　　处：《材料开发与应用》2001年第4期13-15,23,共4页Development and Application of Materials

摘　　要：通过拉伸试验、硬度测试、金相组织及扫描电镜分析 ,研究了不同时效热处理工艺对铸造Ni Be合金性能的影响。试验结果表明 ,时效温度和时效时间对该合金的力学性能的影响存在交互作用 ;断口具有细小的韧窝特征。获得了 3种热处理状态、综合性能优异的Ni Be合金 ,硬度分别为HRB87、HRC3 2、HRC51。WT5”BZ]In this paper, the effects of heat treatment on the mechanical properties of the Ni Be casting alloy are investigated with tensile test、 hardness test、metallographic structure and scanning electron microscopy(SEM). The results show that the mechanical properties are affected largely by aging time and aging temperature, and it's found with SEM that there are fine toughness dens on the fracture surface of the Ni Be alloy. Through different heat treatment processes, three kinds of Ni Be alloy with different hardness (HRB87、HRC32、HRC51) are obtained, and their comprehesive properties are excellent. [WT5”HZ]

关 键 词：Ni-Be合金 硬度 镍铍合金 时效热处理 铸造合金 力学性能 固溶处理 

分 类 号：TG166.9[金属学及工艺—热处理] TG156.9[金属学及工艺—金属学]