Phase field model of premelting of grain boundaries

Details Phase field model of premelting of grain boundaries Phase field model of premelting of grain boundaries

2001-11-05

arxiv.org/abs/cond-mat/0111069v1

Physics

Condensed Matter

Materials Science

6 pages, 9 figures, RevTeX 4

Scientific paper

10.1016/S0167-2789(02)00377-9

We present a phase field model of solidification which includes the effects of the crystalline orientation in the solid phase. This model describes grain boundaries as well as solid-liquid boundaries within a unified framework. With an appropriate choice of coupling of the phase field variable to the gradient of the crystalline orientation variable in the free energy, we find that high angle boundaries undergo a premelting transition. As the melting temperature is approached from below, low angle grain boundaries remain narrow. The width of the liquid layer at high angle grain boundaries diverges logarithmically. In addition, for some choices of model coupling, there may be a discontinuous jump in the width of the fluid layer as function of temperature.

Affiliated with

Also associated with

No associations

Rating

Phase field model of premelting of grain boundaries does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Phase field model of premelting of grain boundaries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase field model of premelting of grain boundaries will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-591715