β Scribed by G.E. Rhead; H. Mykura
No coin nor oath required. For personal study only.
The above discussion of the spread of fresh slip in ionic crystals where the grown-in dislocations do not move in the process of deformation would appear to apply also to the generation of a Liiders band in the yield phenomenon of low carbon steel where the unpinning stress for aged dislocations is greater than the upper yield stress. This is supported by the similarity in slip morphology between ionic crystals and silicon iron as is evident from the work of Low and Guard@) and Stein and I,o~~~~.
This work, which is part of a study of the mechanics of brittle fracture in MgO and Also, was carried out under the sponsorship of the Armour Research Foundation of the Illinois Institute of Technology. It is a pleasure hereby to acknowledge this support.
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