【作者】 张明海； 羌建兵； 王英敏； Haeussler Peter； 王建豹；

【Author】 Zhang Minghai;Qiang Jianbing;Wang Yingmin;Haeussler Peter;Wang Jianbao;Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), Dalian University of Technology;Southwest Institute of physics and nuclear fusion industry;

【机构】 大连理工大学三束材料改性教育部重点实验室； 核工业西南物理研究院聚变所；

【摘要】 Cu-Ni-P合金常用作Cu/CuCrZr材料连接钎料,但其钎焊接头中易出现Cu₃P脆性相连续析出,导致相关接头性能不佳。针对这一问题,本文基于Cu-Ni-P三元相图特征,利用非晶合金团簇理论设计出Cu₆₉Ni₁₅P₁₆成分,利用感应熔炼法和急冷甩带技术制备了上述成分的合金铸锭与箔带,分析了两种合金样品的凝固组织和熔化行为,并研究了Cu₆₉Ni₁₅P₁₆箔带钎焊Cu/CuCrZr合金的接头组织与性能。结果表明:通过急冷甩带技术可以获得完全非晶态的Cu₆₉Ni₁₅P₁₆箔带,由其钎焊获得的Cu/CuCrZr合金接头中的Cu₃P相被Cu基固溶体所割裂,钎缝性能大为改善。更多还原

【Abstract】 Cu-Ni-P alloys are usually utilized as filler metals for brazing Cu/CuCrZr.However, the continuous brittle Cu₃P phases are easily found in the relevant joint, which will worsen the property of the joint significantly.To overcome the shortcomings, the composition of Cu₆₉Ni₁₅P₁₆ is design by the cluster theory for amorphous alloy in the present work basing on ternary Cu-Ni-P phase diagram, and the botton and ribbon samples were prepared by the induction smelting and melt-spinning method respectively.And the solidification structure and melting behavior of the above samples were investigated systematically, then the Cu₆₉Ni₁₅P₁₆ melt-ribbon was used as filler metal to braze the Cu/CuCrZr alloys, and the micro-structure and properties of brazing joint were also examined.The results showed that fully amorphous-state Cu₆₉Ni₁₅P₁₆.ribbons can be achieved by the melt-spun technique, and btain total amorphous substance ribbon, and the composition is And in the joint, that obtained by brazing the Cu/CuCrZr, have Cu₃P brittle compound is refined and separated by Cu based solid solution phase in the Cu/CuCrZr joint brazed by the Cu₆₉Ni₁₅P₁₆ amorphous ribbon, which enhances the properties of the resultant joint obviously.更多还原