Be/中间层/HR-1不锈钢热静压连接界面特性  

Interface Characteristic during Bonding of Be and HR-1 Stainless Steel by Hot Pressing

作　　者：李辉[1,2] 康人木 周上祺[1] 孔纪兰[1] 张鹏程[3] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044 [2]重庆市计量质量检测研究院,重庆401121 [3]表面物理与化学国家重点实验室,四川绵阳621907

出　　处：《核动力工程》2010年第3期122-127,共6页Nuclear Power Engineering

摘　　要：采用热静压方法进行Be/HR-I不锈钢的扩散连接,利用光学金相、扫描电镜(SEM)、俄歇电子能谱(AES)和X射线衍射仪(XRD)及材料试验机分析了接头扩散区的显微组织、元素和物相分布以及力学性能,讨论了Cu、Al和Ag-Cu合金作为中间层材料的作用。研究表明:Al作为中间层材料,不易实现Be/HR-I不锈钢的扩散连接;Cu和Ag-Cu合金作为中间层材料,能够实现Be/HR-I不锈钢的扩散连接,且Ag-Cu合金作为中间层扩散连接效果更好,更能有效地减少铍和不锈钢间的元素互扩散;Be与Fe和不锈钢中其他合金元素的脆性金属间化合物的大量生成,使接头质量较好。Be and HR-I stainless steel was diffusion bonded by hot pressing.The microstructure,composition and phase distribution and mechanical properties of the joints were analyzed using the optical microscopy,scanning electron microscopy（SEM）,scanning auger microspectroy（SAM） and x-ray diffraction（XRD）,and the effect of different interlayer materials Cu and Al and Ag-Cu alloy was also discussed.The results show that it is not easy to joint Be and HR-1 stainless when Al was used as the interlayer material,but good joints can be obtained using Cu and AgCu alloy as the interlayer materials,because the formation of Be-Fe brittle intermetallic compounds was prevented.Ag-Cu alloy is the best interlayer materials among them,as it can reduce the mutual diffusion between Be and Fe.

关 键 词：铍 HR-1不锈钢 中间层 扩散连接 界面特性 

分 类 号：TG457.1[金属学及工艺—焊接]