標題: Grain boundary precipitation in Fe-30Mn-9Al-5Cr-0.7C alloy
作者: Tuan, Yi Hsuan
Lin, Chih Lung
Chao, Chuen Guang
Liu, Tzeng Feng
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: transmission electron microscopy;carbides;ordering;austenitic iron aluminum manganese chromium carbon alloy
公開日期: 1-Jul-2008
摘要: The as-quenched microstructure of the Fe-30%Mn-9%Al-5%Cr-0.7%C (in mass%) alloy was single-phase austenite. When the as-quenched alloy was aged at 550 degrees C-750 degrees C, fine (Fe,Mn)(3)AlC carbides were formed within the austenite matrix. In addition, as the aging temperature increased, a M7C3 carbide + D0(3) -> M7C3 carbide + B-2 -> M7C3 carbide + alpha (ferrite) phase transition had occurred on the grain boundaries. This grain boundary precipitation behavior has never before been observed in FeMnAlC and FeMnAlCrC alloy systems.
URI: http://dx.doi.org/10.2320/matertrans.MRA2008060
http://hdl.handle.net/11536/8614
ISSN: 1345-9678
DOI: 10.2320/matertrans.MRA2008060
期刊: MATERIALS TRANSACTIONS
Volume: 49
Issue: 7
起始頁: 1589
結束頁: 1593
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