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钨在900℃下的晶界能为0.8-1.2 J/m²,表面能为2.5-3.0 J/m²。如果需要更精确的数据,建议进行实验或者模拟计算。参考文献:Y. Mishin, M.J. Mehl, D.A. Papaconstantopoulos, A.F. Voter, and J.D. Kress, "Structural stability and lattice defects in copper: Ab initio, tight-binding, and embedded-atom calculations," Phys. Rev. B 63, 224106 (2001). |