Journal
SCRIPTA MATERIALIA
Volume 69, Issue 2, Pages 143-148Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2013.02.019
Keywords
Amorphous alloys; Time-temperature-crystallinity diagram; Spark plasma sintering; Devitrification kinetics; Metallic glasses
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Funding
- Department of Energy [W-7405-Eng-48]
- Defense Threat Reduction Agency [HDTRA1-11-1-0067]
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We present the devitrification behavior of two Fe-based amorphous alloys during spark plasma sintering. The two compositions of interest are SAM7 (Fe48Mo14Cr15Y2C15B6) and SAM2X5 (Fe49.7Cr17.7Mn1.9Mo7.4W1.6B15.2C3.8Si2.4), both of which have been shown to exhibit outstanding corrosion resistance. We have developed a relationship between crystallite size, time, and temperature of sintering, and propose a time temperature crystallinity diagram that is useful for predictive purposes and for guidance on the spark plasma sintering of amorphous metals. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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