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Author:

吴玉锋 (吴玉锋.) (Scholars:吴玉锋) | 杜文博 (杜文博.) (Scholars:杜文博) | 左铁镛 (左铁镛.) (Scholars:左铁镛)

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CQVIP PKU CSCD

Abstract:

以Mg-6Al合金为基体,分别单一添加稀土Nd、Sr和复合添加稀土Nd和碱土Sr元素,采用水冷模工艺制备Mg-6Al-6Nd,Mg-6Al-2Sr和Mg-6Al-2Sr-2Nd耐热镁合金,并比较研究单一添加Nd或Sr和复合添加稀土Nd和碱土Sr对合金组织结构和蠕变性能的影响.结果表明:复合添加稀土Nd和碱土Sr后,合金中除了析出第二相Al2Nd、Al11Nd3和Al4Sr外,还析出Sr和Nd相互取代的Al4(Sr,Nd)和Al11(Nd,Sr)3复合相;在Mg-6Al-2Sr基础上添加2%Nd,不仅细化合金枝晶间距,还显著地提高第二相的分布密度,增强合金蠕变过程中位错与第二相交互作用,提高合金的蠕变性能.

Keyword:

耐热镁合金 蠕变性能 耐热性 稀土 碱土 镁合金

Author Community:

  • [ 1 ] [吴玉锋]北京工业大学
  • [ 2 ] [杜文博]北京工业大学
  • [ 3 ] [左铁镛]北京工业大学

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Source :

中国有色金属学报

ISSN: 1004-0609

Year: 2010

Issue: 9

Volume: 20

Page: 1680-1685

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 7

Chinese Cited Count:

30 Days PV: 4

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