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2011 №02 (04) 2011 №02 (06)

The Paton Welding Journal 2011 #02
The Paton Welding Journal, 2011, #2, 24-26 pages  

CAUSE OF SECONDARY HARDENING IN Cr-Mo-V WELD METAL DURING LONG-TERM HEAT EXPOSURE

P. MOHYLA, I. HLAVATY and P. TOMCIK


Technical University of Ostrava, Czech Republic
 
 
Abstract
Results of microstructural analysis quantified changes in the dispersion phase in Cr-Mo-V weld metal during exposure in the sub-creep range are presented. The hypothesis that changes in the dispersion of MX particles during long-term heat exposure are significant has been confirmed by presented results.
 
 
Keywords: CrMoV steel welds, sub-creep range, secondary hardening, vanadium carbides and carbonitrides, microstructural analysis, image analysis
 
 
Received:                ??.??.??
Published:               28.02.11
 
 
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