Analysis of Kinetics of Diffusion Induced Recrystallization in Fe Phase of Cu/Fe/Cu Diffusion Couples

この論文にアクセスする

この論文をさがす

著者

抄録

Combining the columnar-geometry and boundary-diffusion model by Li and Hillert with the energy balance model by Kajihara and Gust, a new kinetic equation has been obtained to describe the growth rate of the alloyed region due to diffusion induced recrystallization (DIR) in a solution phase of binary systems. The equation has been utilized to analyze quantitatively the kinetics of DIR in the Fe(Cu) system observed by the present authors using Cu/(Fe-4.8 mass%)/Cu diffusion couples. The notation Fe(Cu) means that Cu atoms diffuse into a pure Fe or binary Fe-Cu phase. The observations indicate that the thickness <i>l</i> of the DIR region formed in the Fe phase from each interface increases with increasing annealing time <i>t</i> according to the relationship <i>l</i>=1.58×10<sup>-6</sup>(<i>t/t</i><sub>0</sub>)<sup>0.29</sup> at 1323 K. Here, <i>l</i> and <i>t</i> are measured in m and s, respectively, and <i>t</i><sub>0</sub> is unit time, 1 s. Using the mobility <i>M</i> as the fitting parameter of the kinetic equation, we have obtained the value of <i>M</i>=8.64×10<sup>-13</sup> m<sup>4</sup>/J s and the relationship <i>l</i>= 1.08×10<sup>-6</sup>(<i>t/t</i><sub>0</sub>)<sup>0.33</sup> on the basis of the observations. Through the analysis, it is concluded that <i>l</i> increases in proportion to √<i>t</i>  for DIR in a pure metal whereas <i>l</i> increases proportionately with <sup>3</sup>√<i>t</i>  for DIR in a solution phase even with a low solute concentration.

収録刊行物

  • ISIJ international

    ISIJ international 37(9), 921-927, 1997-09-15

    The Iron and Steel Institute of Japan

参考文献:  16件中 1-16件 を表示

  • <no title>

    KAWANAMI Y.

    ISIJ Int. 37, 590, 1997

    被引用文献3件

  • <no title>

    KAWANAMI Y.

    CAMP-ISIJ 8, 1383, 1995

    被引用文献2件

  • <no title>

    KAWANAMI Y.

    Proc. Annual Meeting Jpn. Inst. Met. 426, 1996

    被引用文献1件

  • <no title>

    KAWANAMI Y.

    Proc. Annual Meeting Jpn. Inst. Met. 427, 1996

    被引用文献1件

  • <no title>

    LI Chongmo

    Acta Metall. 29, 1949, 1981

    被引用文献5件

  • <no title>

    HILLERT M.

    Acta Metall. 26, 333, 1978

    被引用文献8件

  • <no title>

    KAJIHARA M.

    Acta Metall. Mater. 39, 2565, 1991

    被引用文献5件

  • <no title>

    KAJIHARA M.

    Acta Mater.

    被引用文献1件

  • <no title>

    FOURNELLE R. A.

    Mater. Sci. Eng. A138, 133, 1991

    被引用文献2件

  • <no title>

    HILLERT M.

    Scr. Metall. 17, 237, 1983

    被引用文献3件

  • <no title>

    PARKER T. S.

    Practical Numerical Algorithms for Chaotic Systems 83, 1989

    被引用文献1件

  • <no title>

    Binary Alloy Phase Diagram 2, 1409, 1990

    被引用文献1件

  • <no title>

    LAZAREV V. A.

    Phys. Met. Metall. 31, 212, 1971

    被引用文献1件

  • <no title>

    Metals Data Book 10, 1993

    被引用文献2件

  • <no title>

    KAUR I.

    Handbook of Grain and Interphase Boundary Diffusion Data 2, 857, 1989

    被引用文献1件

  • <no title>

    Metals Data Book 22, 1993

    被引用文献1件

被引用文献:  7件中 1-7件 を表示

各種コード

ページトップへ