所属单位：航空学院

发表刊物：JOURNAL OF NON-CRYSTALLINE SOLIDS

关键字：Bulk metallic glass matrix composites (BMGMCs) Micromechanics Transformation-induced plasticity (TRIP) Stress-strain relation

摘要：After the introduction of the TRIP (transformation-induced plasticity) effect in bulk metallic glass matrix composites (BMGMCs), the high tensile ductility and marked work-hardening capability could be achieved. A simple micromechanical multi-phase model is developed to address their monotonic mechanical behaviors. The constitutive behaviors of the BMG matrix and particle phases are described by the free volume model and Ludwik flow equation, respectively. Weng's mean field method is adopted to establish the relation between the constituents and resulting composites. A strain-based Weibull probability distribution function is assumed to describe the evolution of phase transformation. The present model is performed under the stain-controlled loading, and the predictions are in good agreement with the measured results, which confirms that the present model can successfully characterize the composite properties, such as yield strength, phase transformation and work-hardening elongation.

ISSN号：0022-3093

是否译文：否

发表时间：2018-03-15

第一作者：姜云鹏

通讯作者：姜云鹏