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Sr对Al-Mg-Si-Cu合金时效析出动力学及拉伸性能的影响 被引量：2

Effect of Sr on aging precipitation kinetics and tensile strength of Al-Mg-Si-Cu alloy
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摘要 试验研究了微量Sr对Al-Mg-Si-Cu合金时效析出动力学及力学性能的影响。结果表明,当w(Sr)=0.033%时,合金中的两种时效相的激活能最低,而力学性能最好。Sr的加入导致了合金中原有热平衡的变化,从而影响了时效相的析出过程,继而使力学性能发生变化。 The effect of minor strontium addition on ageing precipitation kinetics and tensile strength of Al-Mg-Si-Cu alloy has been investigated. The results show that the activation energy of the two aging phases is the lowest but the mechanical properties of the alloy are the best when the Sr addition is w（0. 033% ）. The strontium addition in the alloy leads to the changing of original heat balance of the alloy, thereby the precipitation process of the aging phases is influenced and the mechanical properties are changed subsequently.
作者 陈海军 马建辉 卢广玺 张春香 关绍康
机构地区 河南工程学院机械工程系 郑州大学材料科学与工程学院
出处 《轻合金加工技术》 CAS 北大核心 2011年第3期57-60,共4页 Light Alloy Fabrication Technology
关键词 AL-MG-SI-CU合金 时效 激活能 力学性能 Al-Mg-Si-Cu alloy aging activation energy mechanical property
分类号 TG156.92 [金属学及工艺—热处理]
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参考文献9

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共引文献74

同被引文献49

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引证文献2

二级引证文献10

轻合金加工技术
2011年 第3期

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