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Cu-Be-Co-Zr合金时效析出动力学
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河南科技大学材料科学与工程学院,河南科技大学材料科学与工程学院,西安交通大学材料科学与工程学院,河南科技大学材料科学与工程学院,河南科技大学材料科学与工程学院

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国家重点研发计划、国家自然科学基金项目(面上项目,重点项目,重大项目)


Phase Transformation Kinetics of Cu-Be-Co-Zr Alloy during Aging Treatment
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School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering, Xi’an Jiaotong University,School of Materials Science and Engineering,Henan University of Science and Technology,School of Materials Science and Engineering,Henan University of Science and Technology

Fund Project:

The National Key Research and Development Program of China;State Key Program of National Natural Science Foundation of China

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    摘要:

    研究了Cu-Be-Co-Zr合金480℃恒温时效条件下的时效析出动力学。根据导电率与析出相体积分数的关系,计算了Cu-Be-Co-Zr合金不同时效时间(0, 30, 60, 120, 180, 240, 360, 480, 600 min)对应的析出相转变比率,建立了Cu-Be-Co-Zr合金480℃时效条件下的析出相变动力学方程和导电率方程,并在此基础上绘制了等温转变动力学S曲线;采用固态热分解反应机理的积分方程,揭示了Cu-Be-Co-Zr合金时效析出转变机制为受扩散控制的反应机理。

    Abstract:

    Phase transformation kinetics of Cu-Be-Co-Zr alloy during aging treatment was investigated in this study. Based on the relationship between electrical conductivity and volume fraction of precipitates, the phase transformation ratio of Cu-Be-Co-Zr alloy aged at 480 degrees Celsius for different holding time (0, 30, 60, 120, 180, 240, 360, 480, and 600 min) were calculated. The kinetics equation of phase transformation and the electrical conductivity equation were derived, respectively. The isothermal transformation kinetics S-curves of Cu-Be-Co-Zr alloy was drawn. By using the integral equation of solid thermal decomposition reaction mechanism, the phase transformation mechanism of Cu-Be-Co-Zr alloy is controlled by three dimensions of diffusion.

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周延军,宋克兴,邢建东,刘勇,杨少丹. Cu-Be-Co-Zr合金时效析出动力学[J].稀有金属材料与工程,2018,47(4):1096~1099.[Zhou Yanjun, Song Kexing, Xing Jiandong, Liu Yong, Yang Shaodan. Phase Transformation Kinetics of Cu-Be-Co-Zr Alloy during Aging Treatment[J]. Rare Metal Materials and Engineering,2018,47(4):1096~1099.]
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  • 收稿日期:2016-05-25
  • 最后修改日期:2016-09-09
  • 录用日期:2016-10-18
  • 在线发布日期: 2018-05-31
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