Ni60B有氧烧结工艺的研究  

Aerobic sintering process of Ni60B self-fluxing alloy

作　　者：韩小云[1,2] 丁小芹 梁翠[1] 王贤瑞[1] 游航[1] 徐金富[1,2] 

机构地区：[1]华东理工大学材料科学与工程学院,上海200237 [2]宁波工程学院材料工艺研究所,浙江宁波315016

出　　处：《兵器材料科学与工程》2010年第5期72-74,共3页Ordnance Material Science and Engineering

摘　　要：采用箱式炉在有氧状态下烧结制备Ni60B自熔合金,研究烧结工艺对Ni60B自熔合金组织和性能的影响。结果表明:Ni60B自熔合金粉末经1 000℃×15 min,随炉冷却至400℃后空冷的最佳工艺烧结后,合金的金相组织为在γ-Ni固溶体基体上均匀的分布着Cr、Fe的碳化物、硼化物硬质相;其密度为7.64 g/cm3,硬度为56.96HRC。Ni60B self-fluxing alloy was sintered in the box-type furnace with aerobic state.The effects of different sintering process on mechanical properties of Ni60B self-fluxing alloy were studied.The results show that the optimum parameters for the Ni60B self-fluxing alloy are as following： sintering temperature 1 000 ℃,holding time 15 minutes and furnace cooling to 400℃.Hard phases,such as Mx（Cr、Fe）Cy,boride are uniformly distributed on the matrix.The density of Ni60B self-fluxing alloy is 7.64 g/cm^3,and the hardness is 56.96HRC.

关 键 词：自熔合金 Ni60B 烧结工艺 

分 类 号：TF123[冶金工程—粉末冶金]