期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 97-98, 期 -, 页码 89-100出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2016.07.040
关键词
Microstructure; Phase transformation; Martensite; Phase-field method; Size effects
类别
资金
- National Science Center (NCN) in Poland [2015/17/B/ST8/03242]
Size-dependent microstructure of the interface layer between austenite and twinned martensite is studied using a recently developed finite-strain phase-field model. The microstructure is assumed periodic and two-dimensional, however, non-zero out-of-plane displacements are allowed so that the basic microstructural features, specifically the nominal orientation of the twinning and habit planes and the twin fraction, are consistent with the crystallographic theory of martensite. The phase-field computations are carried out for the CuAlNi shape memory alloy undergoing the cubic-to-orthorhombic transformation, and the corresponding four crystallographically distinct microstructures of the austenite-twinned marten site interface are studied in detail. The focus is on size-dependent morphology of the interface layer and on size-dependent interfacial and elastic micro-strain energy contributions. Two mechanisms of reducing the elastic micro-strain energy are revealed: formation of a non-planar zigzag-like interface and twin branching. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据