Failure of metals I: Brittle and ductile fracture
Failure of metals I: Brittle and ductile fracture
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DOI：
10.1016/j.actamat.2015.12.034
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发表时间：
2016-04-01
期刊：
影响因子：
9.4
通讯作者：
Pardoen, T.
中科院分区：
文献类型：
--
作者：
Pineau, A.;Benzerga, A. A.;Pardoen, T.
这是关于金属失效的三篇综述中的第一篇。在此，单调载荷下的脆性和韧性失效在局部断裂方法的背景下进行了探讨。在这种方法中，重点是将微观结构、物理机制和整体断裂性能联系起来。关于脆性断裂的部分聚焦于解理，也涵盖了铁素体钢的晶间断裂。对解理的分析涉及体心立方金属和密排六方金属，重点放在前者。在回顾了贝雷敏模型之后，特别关注了多重障碍扩展和晶界的跨越。关于韧性断裂的部分包含了由空洞聚并或塑性失稳导致的两种失效模式。尽管仍然缺乏一个通用的韧性断裂理论，但这部分全面涵盖了该主题，一方面平衡了现象学和机制，另一方面平衡了基于微观结构的建模和模拟，并提供了应用实例。© 2016 Acta Materialia Inc. 由爱思唯尔有限公司出版。保留所有权利。
This is the first of three overviews on failure of metals. Here, brittle and ductile failure under monotonic loadings are addressed within the context of the local approach to fracture. In this approach, focus is on linking microstructure, physical mechanisms and overall fracture properties. The part on brittle fracture focuses on cleavage and also covers intergranular fracture of ferritic steels. The analysis of cleavage concerns both BCC metals and HCP metals with emphasis laid on the former. After a recollection of the Beremin model, particular attention is given to multiple barrier extensions and the crossing of grain boundaries. The part on ductile fracture encompasses the two modes of failure by void coalescence or plastic instability. Although a universal theory of ductile fracture is still lacking, this part contains a comprehensive coverage of the topic balancing phenomenology and mechanisms on one hand and microstructure-based modeling and simulation on the other hand, with application examples provided. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.