Journal
MATERIALS LETTERS
Volume 64, Issue 13, Pages 1411-1414Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2010.03.021
Keywords
Reversed austenite; Martensite lath; M23C6 carbide; Microstructure Metals and alloys; Formation
Funding
- National Natural Science Foundation of China [50871110]
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Formation of the reversed austenae obtained by intercritical tempering has been studied via transmission electron microscopy (TEM) in a Fe-13%Cr-4%Ni-Mo low carbon martensitic stainless steel It is found that the precipitation of M23C6 carbides along the martensae lath boundaries will result in NI-enrichment in the adjacent region The reversed austenae forms with the NI-enrichment region as the nucleation sites, keeps a cube-cube orientation relationship with the M23C6 carbides and bears the Kurdjumov-Sachs (K-S) relationship with the martensite Moreover, the reversed austenite formed inside the martensae laths is also confirmed. The mechanism for formation of the reversed austenae is discussed in detail (C) 2010 Published by Elsevier BV
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