Affiliation:
1. Shanghai Jiao Tong University
Abstract
M6C carbides were found to form during short-term creep tests at 600 °C for 1100 h in an 11Cr ferritic/martensitic (F/M) steel with the normalized and tempered condition. The M6C carbides have a face-centered cubic crystal structure, and a metallic element composition of 41-45Fe, 30-33W, 19-21Cr, 3Co/5Ta in atomic pct. The M6C carbides were a dominant phase in the crept steel. δ-ferrite in high-Cr F/M steels may lead to a premature formation of large-sized M6X precipitates during high temperature creep.
Publisher
Trans Tech Publications, Ltd.
Subject
Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics
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