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Au、Ge对银基合金靶材坯料耐硫化性能的协同作用
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东北大学

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TB 331

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国家自然科学基金资助(项目号U1608254 )


Synergistic effect of Au and Ge on sulfide resistance of silver-based alloy targets
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Northeastern University

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    摘要:

    采用自主设计的带有气氛保护、冒口保温、磁力搅拌和强制冷却功能高频熔炼-铸造-搅拌一体化设备制备银基合金靶材坯料。研究了Au、Ge协同作用对银基合金靶材坯料的组织和性能的影响。结果表明,随着Au、Ge添加量的增加,银基合金靶材微观组织细化,二次枝晶变短,抗硫化性提高,且在Au、Ge添加量均为1.0wt%时,银基合金靶材坯料的耐硫化性能最佳。随着Au、Ge添加量增高,元素偏析现象加剧,在Ag1.5Cu0.1Y1.5Au靶材的晶界处出现少量的富集区,使靶材的抗硫化和耐蚀性有所下降。

    Abstract:

    Silver-based alloy targets were prepared by self-designed melting-casting-stirring equipment. The influence of Au and Ge on the microstructure and property of silver-based alloy targets were studied. Our results indicated that with the addition of Au and Ge, the microstructure of silver-based alloy targets was refined, the second dendrite was shortened and the sulfidation resistance was increased; Furthermore, when the addition of Au and Ge reached 1.0 wt%, the silver-based alloy targets had best sulfidation resistance. Additionally the phenomenon of element segregation was aggravated with the increased of the addition of Au and Ge. Therefore, a few of clustering enrichment regions appeared at the grain boundaries of Ag1.5Cu0.1Y1.5Au alloy targets and the sulfidation resistance was decreased with the increased of the addition of Au and Ge.

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张德胜,张勤,杨洪英. Au、Ge对银基合金靶材坯料耐硫化性能的协同作用[J].稀有金属材料与工程,2019,48(3):987~993.[Zhang Desheng, Zhang Qin, Yang Hongying. Synergistic effect of Au and Ge on sulfide resistance of silver-based alloy targets[J]. Rare Metal Materials and Engineering,2019,48(3):987~993.]
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历史
  • 收稿日期:2017-08-01
  • 最后修改日期:2017-08-18
  • 录用日期:2017-09-11
  • 在线发布日期: 2019-04-10
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