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Cu-Be-Co-Zr合金時效析出動力學(xué)
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河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院,西安交通大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院,河南科技大學(xué)材料科學(xué)與工程學(xué)院

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國家重點研發(fā)計劃、國家自然科學(xué)基金項目（面上項目，重點項目，重大項目）


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

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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℃恒溫時效條件下的時效析出動力學(xué)。根據(jù)導(dǎo)電率與析出相體積分?jǐn)?shù)的關(guān)系,計算了Cu-Be-Co-Zr合金不同時效時間(0, 30, 60, 120, 180, 240, 360, 480, 600 min)對應(yīng)的析出相轉(zhuǎn)變比率,建立了Cu-Be-Co-Zr合金480℃時效條件下的析出相變動力學(xué)方程和導(dǎo)電率方程,并在此基礎(chǔ)上繪制了等溫轉(zhuǎn)變動力學(xué)S曲線；采用固態(tài)熱分解反應(yīng)機(jī)理的積分方程,揭示了Cu-Be-Co-Zr合金時效析出轉(zhuǎn)變機(jī)制為受擴(kuò)散控制的反應(yīng)機(jī)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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周延軍,宋克興,邢建東,劉勇,楊少丹. Cu-Be-Co-Zr合金時效析出動力學(xué)[J].稀有金屬材料與工程,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
  • 錄用日期:2016-10-18
  • 在線發(fā)布日期: 2018-05-31
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