[1] R. P. Carreker, J. G. Leschen and J. D. Lubahn, Trans. AIME, 180 (1949) , 139．
[2] A. H. Cottrell and V. Aytekin, J. Inst. Metals, 77 (1950) . 389．
[3] #12．
[4] O. D. Sherby, A. Goldberg and J. E. Dorn, Trans. ASM, 46 (1954) , 681．
[5] E. R. Parket. Trans. ASM, 50 (1958) , 52．
[6] A. H. Cottrell. Dislocations and Plastic Flow in Crystals, Oxford University Press, London, 1953 p. 208． |
