| 微量添加元素对Al-Zn-Mg合金时效动力学的影响 |
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| 引用本文： | 杨胜坤,孙贵经,林肇琦.微量添加元素对Al-Zn-Mg合金时效动力学的影响[J].东北大学学报(自然科学版),1985(3). |
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| 作者姓名： | 杨胜坤 孙贵经 林肇琦 |
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| 作者单位： | 东北工学院金相教研室
(杨胜坤，孙贵经)，东北工学院金相教研室(林肇琦) |
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| 摘 要： | 利用电阻法研究了单独或同时添加微量元素Mn、Cu和Zr等对Al-Zn-Mg合金时效动力学的影响,结果表明:Mn、Cu和Zr都不同程度地推迟了GP区的形成过程,即延迟GP区的形成速度。并且判定:Cu参加GP区的形核过程;Mn可能参加GP区的形核过程;而Zr不参加GP区的形核过程,但固溶处理时形成的含Zr微细析出物在时效时可能起GP区的核心作用。
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| 关 键 词： | Al-Zn-Mg合金 时效动力学 结合能 激活能 |
Age Kinetics Study on the Effect of Minor Additive Elements on Al-Zn-Mg Alloys |
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| Yang Shenkun,Sun Guijing and Lin Zhaoqi.Age Kinetics Study on the Effect of Minor Additive Elements on Al-Zn-Mg Alloys[J].Journal of Northeastern University(Natural Science),1985(3). |
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| Authors: | Yang Shenkun Sun Guijing and Lin Zhaoqi |
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| Abstract: | In respect of age kinetics the effect of such minor additive elements as Mn, Cu and Zr on Al-Zn-Mg alloys which these elements are added in either singly or together is studied by means of resistormetric method. The experimental results show that all the three elements retard more or less the progress of Guinier-Preston zone formation or retarding the forming rate of GP zone. As for the element participation in nucleation-and-growth transformation, so Cu does and possibly Mn but Zr does not, Ocassionally the finely precipated Zr-bearing phase produced from solution treatment can play the role of a nucleus in GP zone formation |
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| Keywords: | Al-Zn-Mg alloys age kinetics nucleation-and-growth transformation binding energy activation energy |
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