Dislocation Configurations in Nanocrystalline FeMo Sintered Components

被引：0
|
作者：
Paolo Scardi
Mirco D’incau
Matteo Leoni
Alessandro Fais
机构：
[1] University of Trento,Department of Materials Engineering and Industrial Technologies
[2] Turin Polytechnic,Department of Materials Science and Chemical Engineering
来源：
Metallurgical and Materials Transactions A | 2010年 / 41卷
关键词：
Dislocation Density; Domain Size; Spark Plasma Sinter; Specific Energy Input; Spark Plasma Sinter Process;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Net-shape compaction of a nanocrystalline ball-milled commercial Fe-1.5 wt pct Mo powder was done via spark plasma sintering (SPS) and capacitor discharge sintering (CDS). A detailed microstructure analysis, performed by X-ray diffraction–whole powder pattern modeling (XRD-WPPM), shows that CDS, owing to the faster sintering conditions, retains a much finer and more uniform microstructure with dislocations uniformly distributed inside the nanocrystalline grains. Conversely, SPS causes dislocations to pile up and extensive grain growth to occur, especially when high sintering temperatures are employed.
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页码：1196 / 1201
页数：5
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