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Au、Ge對銀基合金靶材坯料耐硫化性能的協(xié)同作用
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東北大學(xué)

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TB 331

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國家自然科學(xué)基金資助(項目號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:

    采用自主設(shè)計的帶有氣氛保護(hù)、冒口保溫、磁力攪拌和強(qiáng)制冷卻功能高頻熔煉-鑄造-攪拌一體化設(shè)備制備銀基合金靶材坯料。研究了Au、Ge協(xié)同作用對銀基合金靶材坯料的組織和性能的影響。結(jié)果表明，隨著Au、Ge添加量的增加，銀基合金靶材微觀組織細(xì)化，二次枝晶變短，抗硫化性提高，且在Au、Ge添加量均為1.0wt%時，銀基合金靶材坯料的耐硫化性能最佳。隨著Au、Ge添加量增高，元素偏析現(xiàn)象加劇，在Ag1.5Cu0.1Y1.5Au靶材的晶界處出現(xiàn)少量的富集區(qū)，使靶材的抗硫化和耐蝕性有所下降。

    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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張德勝,張勤,楊洪英. Au、Ge對銀基合金靶材坯料耐硫化性能的協(xié)同作用[J].稀有金屬材料與工程,2019,47(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,2019,47(3):987~993.]
DOI：10.12442/j. issn.1002-185X.20170677

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  • 收稿日期:2017-08-01
  • 最后修改日期:2017-08-18
  • 錄用日期:2017-09-11
  • 在線發(fā)布日期: 2019-04-10
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