摘要
采用真空感应熔炼气雾化法制备了BCu35NiMnCoFeSiBP合金钎料粉末,研究了过热度对细粉收得率的影响,并表征了不同粒径区间合金粉末的表面形貌和内部组织,分析了粉末的成分、物相和熔化温度范围。研究结果表明,随着过热度的增大,细粉(粒径≤150μm)收得率显著增大;随着粉末粒径的减小,卫星球数量明显减少,球形度变得更好,表面变得更加光滑,并且内部组织由大尺寸的柱状晶转变为小尺寸的胞状晶;该合金钎料粉末的成分合格,元素分布均匀,以Cu、Mn、Ni三种主元形成的连续固溶体相为主,含有少量的MnNiSi相;熔化温度范围在(895.96~1011.84)℃,可作为优异的Ni基高温合金钎焊用钎料粉末。
BCu35NiMnCoFeSiBP alloy solder powder is prepared by vacuum induction melting gas atomization method,the study is carried out,which is the effect of superheat degree on fine powder yielding rate,and the surface topography and internal organization of the alloy powder with the different particle size is represented,and the composition,phase and melting temperature range of the powder is also analyzed.The study results show,the yielding rate of fine powder(particle size≤150μm)increases significantly along with the increasing of the superheat degree;the amount of powder satellite ball decreased obviously along with the powder particle size decreased,the sphericity degree becomes better,the surface becomes more smooth,and the internal organization is changed from large size columnar crystal into small size swelling crystal;the alloy solder powder has the qualified composition,the average element distribution,which consists mainly of continuous solid solution phase formed by Cu,Mn,Ni,and contains a small quantity of MnNiSi phase;the melting temperature range is 895.96℃~1011.84℃,which can be used as the excellent Ni-based high temperature alloy soldering flux powder.
作者
戎万
操齐高
郑晶
贾志华
姜婷
孟晗琪
雷睿超
RONG Wan;CAO Qi-gao;ZHENG Jing;JIA Zhi-hua;JIANG Ting;MENG Han-qi;LEI Rui-chao(Northwest Institute for Non-ferrous Metal Research,Xian,Shaanxi 710016,China)
出处
《云南冶金》
2020年第6期68-73,共6页
Yunnan Metallurgy
基金
陕西省重点研发计划项目(2019GY-158)。
关键词
合金钎料
气雾化
细粉收得率
柱状晶
胞状晶
alloy solder
gas atomization
fine powder yielding rate
columnar crystal
swelling crystal
