The plastic deformation behavior of Mo single crystals under compression

The yield stress and slip behavior of Mo single crystals in six different orientations were investigated under compression over the temperature range from 77 to 550°K. The plastic behavior shows varying degrees of reversal effects in yield stress and slip band formation upon reversal of the sense of applied stress, depending on the crystal orientation. An attempt was made to rationalize the results in terms of the modified Peierls model. It is shown that not all experimental observations can be explained satsfactorily by the model.