Phase Field Study for Self-Assemble of the Second Phase Particles in Coherent Phase Transition

Abstract:

We present a phase field model for coherent phase transition and its application to the self-assembled arrangement of second phase particles in coherent phase transition. The model developed here is free from the interface instability due to the contribution of chemical free energy and correctly describes elastically inhomogeneous system. It is observed that coherent misfit strain and anisotropy of elastic constants induce the interface instability that brings about the particle splitting and the self-assembled alignment of second phase particles. Their arrangement to the elastically soft direction occurs only in the system where the elastic contant of the precipitates is larger than that of the matrix phase.

• Periodical: Solid State Phenomena (Volumes 124-126)
• Pages: 583-586
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.124-126.583
• Online since: June 2007
• Authors: Jin You Kim, Jong Kyu Yoon, Yoo Chan Kim, Hyunn Kwang Suck, Ki Bae Kim, Pil Ryung Cha
• Keywords: Particle Alignment, Particle Splitting, Phase Field Modellig, Phase Transformation

References

[1] Maheshwari A, Ardell AJ. Phys. Rev. Lett. 70 (1993) p.2305.

[2] Calderson HA, Kostorz G, Qu YY, Dorantes Hj, Cruz JJ, Cabanas-Moreno JG. Mater. Sci. Eng. A 238 (1997) p.13.

[3] Yoo YS, Yoon DY, Henry MF. Metals Mater. 1 (1995) p. (1995).

[4] Yang Y, Chen LQ, Khachaturyan AG. 41 (1993) p.279.

[5] Miyazaki T, Imamura H, Kozakai T. Mater. Sci. Eng. 54 (1982) p.9.

[6] Kim SG, Kim WT, Suzuki T. Rhys. Rev. E 60 (1999) p.7186.

[7] Cha PR, Yeon DH, Chung SH. Scripta Mater. 52 (2005) p.1241.