钎焊温度对镍基合金真空钎焊接头组织及硬度的影响  

Effects of Brazing Temperature on Vacuum Joint Microstructure and Microhardness of Inconel Superalloy

作　　者：于治水[1] 石昆[1] 李瑞峰[1] 

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《热加工工艺》2009年第17期116-119,共4页Hot Working Technology

基　　金：国家自然科学基金资助项目(50875160);上海市教委重点学科建设项目(J51402);上海市科委计划项目(071005120)

摘　　要：用镍基钎料真空钎焊镍基合金时钎焊温度对钎料中Si、B等元素的扩散有重要作用,因此采用3种钎焊温度对其进行真空钎焊,研究了1080、1110和1140℃钎焊温度下钎缝的微观组织、元素分布及显微硬度等。结果表明,随着钎焊温度的升高,钎料中元素向母材扩散越充分,钎焊温度为1140℃时,钎缝组织基本为固溶体。Three different brazing temperature to the effect of inconel superalloy vacuum brazing has been evaluated. The brazing temperature is crucial to the silicon and boron diffusion in the inconel superalloy brazing by using Nickel based filler. Microstructure of the joints brazed, element distribution and microhardness are evaluated at different brazing temperature of 1080℃, 1110℃ and 1140℃. The results show that the Nickel based filler elements diffusion is more active along with the increase of the brazing temperature. The microstructure of the joints brazed is mainly solid solution when the brazing temperature is 1140℃.

关 键 词：镍基合金:真空钎焊 镍基钎料 

分 类 号：TG454[金属学及工艺—焊接]