Au-12Ge钎料箔材的工艺集成制备与组织演化研究  

Study on process integration preparation and microstructure evolution of Au-12Ge solder foil

作　　者：张顺猛 熊凯[1] 朱振永 许思勇[1] 李传维[2] 毛勇[1] ZHANG Shun-meng;XIONG Kai;ZHU Zhen-yong;XU Si-yong;LI Chuan-wei;MAO Yong(Materials Genome Institute of School of Materials and Energy,Yunnan University,Kunming 650500,China;School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]云南大学材料与能源学院材料基因工程研究中心,昆明650500 [2]上海交通大学材料科学与工程学院,上海200240

出　　处：《贵金属》2022年第2期25-30,35,共7页Precious Metals

基　　金：国家自然科学基金项目(51801179);云南省重大科技专项(2019ZE001-1,202002AB080001-6,202203ZA080001);云南省高层次人才引进计划项目(C619300A023);云南省教育厅科学研究基金项目(2022J0004);云南大学教改项目(2021Y35)。

摘　　要：Au-12Ge共晶合金传统生产工艺操作复杂,重复性差,成品率低。本文采用一体式加工工艺,制备出厚度为20μm的箔材钎料。采用扫描电子显微镜(SEM)研究Au-12Ge共晶合金铸态、不同轧制变形量的显微组织形貌,采用同步热分析仪(DSC)研究Au-12Ge箔材的共晶转变温度。结果表明,Au-12Ge共晶合金的铸态组织为Au相和Ge相,随着热轧变形量的增大,Au-12Ge共晶合金组织Ge相经历细化分散到粗化过程,粗大的Ge晶粒内部包裹软质的Au相;Au-12Ge共晶合金箔材的熔点为361℃。The traditional production process of Au-12Ge eutectic alloy is complicated,with poor repeatability and low yield.In this paper,an integrated processing technology is used to prepare Au-12Ge foil brazing material with a thickness of 20μm.The microstructure and composition of as-cast and different rolling deformations of Au-12Ge alloy were studied by scanning electron microscopy(SEM).The eutectic transition temperature of Au-12Ge foil was tested by a synchronous thermal analyzer(DSC).The results show that the as-cast microstructure of Au-12Ge eutectic alloy consists of Au phase and Ge phase.With the increase of hot rolling deformation,the Ge phase of Au-12Ge eutectic alloy undergoes the process of refining,dispersing to coarsening,and the soft Au phase is encapsulated within the coarse Ge grains.The melting point of Au-12Ge eutectic alloy foil is 361℃.

关 键 词：金属材料 钎料 金锗合金 箔材 一体式加工 组织演化 

分 类 号：TG132[一般工业技术—材料科学与工程]