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Influence of Grain Boundary on Melting |
| WANG Tun;ZHOU Fu-Xin;LIU Yue-Wu |
| State Key Laboratory of Nonlinear Mechanics, Institute of
Mechanics, Chinese Academy of Sciences, Beijing 100080
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| Cite this article: |
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WANG Tun, ZHOU Fu-Xin, LIU Yue-Wu 2001 Chin. Phys. Lett. 18 1242-1244 |
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Abstract The temperature behaviour of an Al bicrystal with surfaces consisting of the (110) and (111) crystals is simulated using molecular dynamics. The result shows that the (110) crystal losses its crystalline order at 820 K, whereas the disorder does not propagate through the (111) crystal at this temperature. Instead, some disordered atoms are recrystallized into the (111) crystal and the initial grain boundary changes into stable order-disorder interface. Thus, it was discovered that at temperature near its melting point, the (111) crystal grew and obstructed the propagation of disorder. Such an obstruction is helpful for understanding the melting.
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| Keywords:
64.70.Dv
02.70.Ns
68.35.Rh
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Published: 01 September 2001
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