摘要
对以Al2O3作为增强体的Sn0.3Ag0.7Cu合金粉末进行扩散强化处理,研究扩散温度对其组织及物理性能的影响。结果表明:将Sn0.3Ag0.7Cu合金粉末升温到700℃再进行扩散强化,压坯的尺寸偏差为±0.04 mm,尺寸均匀性较高,合金粉末具备良好的成形能力。扩散合金化温度升高至700℃实现Sn与Cu的完全固溶,得到的粉末颗粒内锡含量为8.6%~9.7%,合金粉末中形成了均匀分布状态的锡。在各温度下进行扩散强化处理得到的Sn0.3Ag0.7Cu合金粉末具有相近的流动能力与松装密度,表现出了优异的流动性。以700℃进行扩散强化得到的细小粉末,具备可控松装度与流动能力,表现出良好压缩特性。
The powder of Sn0.3Ag0.7Cu alloy with Al2O3 as reinforcement was treated with diffusion intensification,and the effect of diffusion temperature on its microstructure and physical properties was tested.The results show that when the Sn0.3Ag0.7Cu alloy powder is heated to 700℃for diffusion strengthening,the size deviation of the blank is±0.04 mm,the size uniformity is higher,and the alloy powder has good forming ability.The diffusion alloying temperature is raised to 700℃to achieve the complete solid solution of Sn and Cu,and the content of Sn in the powder particles is 8.6%-9.7%,and the evenly distributed Sn is formed in the alloy powder.Sn0.3Ag0.7Cu alloy powder obtained by diffusion strengthening treatment at various temperatures has similar flow capacity and loose packing density,showing excellent fluidity.The fine powder is obtained by diffusion strengthening at 700℃,and the alloy powder with controllable looseness and flow capacity shows good compression characteristics.
作者
韦玉堂
孙婷婷
WEI Yu-tang;SUN Ting-ting(School of mechanical engineering,hebei university of science and technology,Shijiazhuang 050091,China)
出处
《粉末冶金工业》
CAS
北大核心
2020年第1期73-76,共4页
Powder Metallurgy Industry
基金
河北省科技厅科技支撑计划(10213948).
作者简介
韦玉堂(1964—),男,硕士,副教授,主要研究方向为机械工程。
