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喷射成形超高强Al-Zn-Mg-Cu合金的双级时效行为研究 被引量：1

Effect of Second Aging Temperature on Spray Forming Al-Zn-Mg-Cu Aluminum Alloys
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摘要 研究了双级时效处理对高Zn(11．64wt％)喷射成形Al-Zn-Mg-Cu合金的组织与性能的影响。采用TEM 和SEM等实验手段对合金的时效组织变化及断口形貌进行了分析,并对力学性能进行了测试。结果表明,采用双级时效处理的合金实现了晶内和晶界析出相的长大和粗化过程;随着时效温度的升高,合金的拉伸强度随之降低,塑性有所改善。并且第二级时效处理制度为170℃／4h时,其拉伸强度与峰时效合金的强度相比下降约13％。 The microstructure and mechanical properties of dual aging treatment Al-Zn-Mg-Cu aluminum alloys with high Zn (11. 64wt % ) content prepared by spray forming technology were studied using transmission electron microscopy (TEM) , scanning electron microscopy (SEM) and MTS-810 materials test system. The results show that precipitation phases of grain interior and grain boundary of the alloys have grown up and coarsened after dual aging treatment. With the increase of second aging temperature, the strength and elongation of the alloys were declined and improved 13% or so compared to peak aging treatment.
作者 崔华 王洪斌 郝斌 程军胜 何建平 张济山
机构地区 北京科技大学材料科学与工程学院 鞍山科技大学材料科学与工程学院 北京科技大学新金属材料国家重点实验室
出处 《金属热处理》 CAS CSCD 北大核心 2006年第z1期139-142,共4页 Heat Treatment of Metals
基金 国家"863"计划资助项目(2001AA332030)
关键词 喷射成形 双级时效行为 力学性能 显微组织 spray forming dual aging behavior mechanical property microstructure
分类号 TG146.2 [金属学及工艺—金属材料]
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参考文献14

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共引文献7

同被引文献13

  • 1白朴存,张秀云,陈伟.喷射成形Al-Zn-Mg-Cu合金的组织与性能研究[J].金属热处理,2006,31(6):17-20. 被引量：3
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  • 4Sun Y P, Yan H G, Chen Z H, et al. Effect of heat-treatment on mlcrostmcture and properties of SiC particulate-reinforced aluminum matrix composite[ J]. Transactions of Nonferrous Metals Society of China A,2007,17(1) :318-321.
  • 5Sun Y P,Yan H G,Chen Z H,et al. Effect of a novel sequential motion compaction process on the densification of multi-layer spray deposited 7090/SiCp composite[ J ]. Journal of Materials Science, 2008,43 ( 8 ) : 6200-6205.
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  • 9孙有平,严红革,陈振华,陈刚.热处理7090/SiC_p铝基复合材料的组织与性能[J].中国有色金属学报,2008,18(5):829-833. 被引量：13
  • 10孙有平,严红革,陈振华,陈刚.Bc路径等径角挤压7090/SiC_p的显微组织及性能[J].中国有色金属学报,2008,18(11):1964-1970. 被引量：13

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金属热处理
2006年 第z1期

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