Cooperative generation of dislocation loops and the brittle-to-ductile transition

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:234

Article; Proceedings Paper

关键词: cooperative dislocation generation;    brittle-to-ductile transition;    dislocation loops;   

DOI  :  10.1016/S0921-5093(97)00252-9

来源: Elsevier

【 摘 要 】

A mechanism of cooperative generation of dislocation loops above a critical temperature in loaded solids is described. We model the massive dislocation activity which commences near the crack tip at the brittle-to-ductile transition temperature in terms of this mechanism and show that it can explain the main features of the transition. (C) 1997 Elsevier Science S.A.

【 授权许可】

Free