to the propagation of Shockley dislocations on every plane. it isreaso- nable to assume a constant aspect ratio for twins i.e. thickness to dia- meter ratio. If t = c D then f should equal 4c NL2/NA' Fig. 3 illus- trates the variation of NLC/NA with the volume fraction. There is some scatter in the data for large volume fractions which is due to the dif-

ICOMAT 79

constant as previously considered in the absence of measurements of NL

Others  :  http://www.msm.cam.ac.uk/phase-trans/2009/ICOMAT79/4.pdf
PID  :  28792

来源: CEUR