Spark Plasma Sintering of Nanostructured Aluminum: Influence of Tooling Material on Microstructure

被引：0
作者：
Dongming Liu
Yuhong Xiong
Ying Li
Troy D. Topping
Yizhang Zhou
Chris Haines
Joseph Paras
Darold Martin
Deepak Kapoor
Julie M. Schoenung
Enrique J. Lavernia
机构：
[1] Shandong University,Department of Materials Science and Engineering
[2] University of California Davis,Department of Chemical Engineering and Materials Science
[3] US Army,Powder Metallurgy & Particulate Technology
[4] TACOM-ARDEC,undefined
来源：
Metallurgical and Materials Transactions A | 2013年 / 44卷
关键词：
Electrical Resistivity; Grain Size Distribution; Powder Particle; Spark Plasma Sinter; Tooling Material;
D O I：
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中图分类号：
学科分类号：
摘要：
The influence of tooling material, i.e., graphite and WC-Co, on the microstructure of a spark plasma sintering (SPS) consolidated, nanostructured aluminum alloy is studied in this paper. The results show that tooling selection influences microstructure evolution, independent of process parameters. The influence of tooling on microstructure is rationalized on the basis of the following factors: heating rate, electrical current density, localized heating, and imposed pressure. A theoretic framework, based on the physical properties of graphite and WC-Co, is formulated to explain the observed behavior.
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页码：1908 / 1916
页数：8
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