Consideration of particle rearrangement during the modeling of spark plasma densification of Al-Mg alloy powders

被引：4

作者：

Hendrickx, P. ^{[1
]}

Milligan, J. ^{[1
]}

Brochu, M. ^{[1
]}

机构：

[1] McGill Univ, Dept Mat Engn, REGAL Aluminum Res Ctr, Montreal, PQ H3A 0C5, Canada

来源：

SCRIPTA MATERIALIA | 2015年 / 102卷

关键词：

Spark plasma sintering; Aluminum alloys; Sintering; Powder consolidation; TEMPERATURE;

D O I：

10.1016/j.scriptamat.2015.01.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A constitutive model of powder densification during spark plasma sintering was adapted to introduce the contribution of particle rearrangement. Such contribution was quantified by a particle-packing factor describing changes in packing states upon compaction of spherical and non-spherical powder particles. To validate this addition, atomized and cryomilled aluminum magnesium powders were sintered using single-step and two-step sintering schedules. Densification simulations of each powder and sintering schedule agreed well with experimental results, supporting the proposed description of the particle rearrangement contribution. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：7 / 10

页数：4

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