-
The phenomenon of elastic energy collapse (EEC) accompanying the variation of the structure and temperature during the growth of a nucleus is discovered while we study the precipitate splitting in an alloy. There are two ways to introduce the EEC, one is the instantaneous elastic energy collapse (IEEC) and the other is the gradual elastic energy collapse (GEEC). Simulation shows that whether the precipitate is splitted is related to the time when EEC emerges, and that the kind of splitting of the precipitate depends on the rate of EEC. For IEEC, if it is introduced when the diameter of a nucleus reaches about 80l–90l (l=12.18 nm) the precipitate is splitted to 4 blocks. For GEEC, if it is intoduced when the time is larger than τ = 7.5× 103 s, the precipitate is splitted to 2 blocks.
-
Keywords:
- precipitate /
- splitting /
- elastic energy collapse
[1] Khachaturyan A G 1986 Theory of structural transformations in solids (New Youk: Willey)
[2] Khachaturyan A G, Semenovskaya S, Tsakalakos T 1995 Phys. Rev. B 52 22
[3] Wang Y, Khachaturyan A G 1995 Acta Metal. Mater. 43 1837
[4] 1998 Acta Mater. 47 247
[5] Calderon H A, Kostorz G, Qu Y Y 1997 Mater. Sci. and Eng. A 238 13
[6] Yoo Y S, Yoon D Y, Henry M F 1995 Mater. and Mater. 1 47
[7] Liu L, Chen Z, Wang Y X 2012 Acta Phys. Sin. 61 186401 (in Chinese) [刘磊, 陈铮, 王永欣 2012 61 186401]
[8] He L P, Liu Y X 2009 J. Comput. Phys. 228 101
[9] Prikhodko S A, Ardell A J 2003 Acta Mater. 51 5021
[10] Song W B, Wang J Q, Li Z Y 2014 Chin. Phys. B 23 066501
[11] Qin X B, Li D X, Li R Q, Zhang P 2014 Chin. Phys. B 23 066501
-
[1] Khachaturyan A G 1986 Theory of structural transformations in solids (New Youk: Willey)
[2] Khachaturyan A G, Semenovskaya S, Tsakalakos T 1995 Phys. Rev. B 52 22
[3] Wang Y, Khachaturyan A G 1995 Acta Metal. Mater. 43 1837
[4] 1998 Acta Mater. 47 247
[5] Calderon H A, Kostorz G, Qu Y Y 1997 Mater. Sci. and Eng. A 238 13
[6] Yoo Y S, Yoon D Y, Henry M F 1995 Mater. and Mater. 1 47
[7] Liu L, Chen Z, Wang Y X 2012 Acta Phys. Sin. 61 186401 (in Chinese) [刘磊, 陈铮, 王永欣 2012 61 186401]
[8] He L P, Liu Y X 2009 J. Comput. Phys. 228 101
[9] Prikhodko S A, Ardell A J 2003 Acta Mater. 51 5021
[10] Song W B, Wang J Q, Li Z Y 2014 Chin. Phys. B 23 066501
[11] Qin X B, Li D X, Li R Q, Zhang P 2014 Chin. Phys. B 23 066501
计量
- 文章访问数: 5841
- PDF下载量: 261
- 被引次数: 0
下载:
