A model for volume fraction and/or particle size selection in metal matrix composites
A model for volume fraction and/or particle size selection in metal matrix composites
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DOI：
10.1016/j.msea.2011.10.022
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发表时间：
2011-12
期刊：
影响因子：
6.4
通讯作者：
Xizhou Kai;Zihan Li;Wenjie Zhang;G. Fan;Lin Jiang;Weihong Lu;Dabing Zhang
中科院分区：
文献类型：
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作者：
Xizhou Kai;Zihan Li;Wenjie Zhang;G. Fan;Lin Jiang;Weihong Lu;Dabing Zhang
本文提出了一种面心立方模型，通过粉末冶金（P/M）途径选择颗粒增强金属基复合材料（PMMCs）的体积分数和/或粒度，以获得均匀的增强分布。fcc模型是Tan和Zhang等人提出的三次模型（[12]）及其Reihanian等人提出的扩展（[14]）的替代模型。针对挤压、轧制、高压扭转（HPT）和等径角挤压（ECAP）等不同变形处理后得到的双模态和三模态复合材料，提出了采用f.c.c模型的均匀分布准则。与以往的立方模型相比，f.c.c模型适用于更大的增强体分数范围。对部分文献报道的P/M pmmc和本研究制备的P/M B4C/Al复合材料的评价结果表明，f.c.c模型更能准确地模拟和预测实际的配筋分布。
In this study, a face-centered cubic (f.c.c) model for volume fraction and/or particle size selection in particle-reinforced metal matrix composites (PMMCs) via powder metallurgy (P/M) routes is presented to get a uniform distribution of reinforcements. The f.c.c model is an alternative to the cubic model proposed by Tan and Zhang [12] and its extension proposed by Reihanian et al. [14]. Uniform distribution criteria by the f.c.c model were proposed both for bi-modal and tri-modal composites obtained after different deformation processing, such as extrusion, rolling, high pressure torsion (HPT) and equal channel angular pressing (ECAP). Compared with the previous cubic models, the f.c.c model is applicable to a wider range of reinforcement volume fraction. Evaluation results both from some P/M PMMCs reported in literatures and the P/M B4C/Al composites fabricated in the present study, showed that the f.c.c model is more accurate to simulate and predict the actual reinforcement distributions.