Effect of the thermal cycle of welding on the microstructure and properties of new structural steels with carbide and carbonitride hardening

The results of investigations into the effect of the thermal cycle of welding on the microstructure and properties of the metal of the heat-affected zone (HAZ) of new steels with carbide and carbonitride hardening - 06GBD and 15KhSATYuD using Gleeble 3800 equipment - are presented. The experimental...

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Bibliographic Details
Published in:Welding international 2014-02, Vol.28 (2), p.147-153
Main Authors: Kostin, V.A., Grigorenko, G.M.
Format: Article
Language:English
Subjects:
bainite
Carbides
Carbonitrides
Hardening
Heat
Heat affected zone
martensite
Microstructure
Phases
Steel
Steel hardening
Structural steels
thermal impact
Welding
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Summary:The results of investigations into the effect of the thermal cycle of welding on the microstructure and properties of the metal of the heat-affected zone (HAZ) of new steels with carbide and carbonitride hardening - 06GBD and 15KhSATYuD using Gleeble 3800 equipment - are presented. The experimental results show that the low ductility and toughness properties of the welded joints in 15KhSATYuD steel are determined by the dissolution of carbide and nitride phases (Fe 3 C, AlN and TiC) in the coarse-grained region of the HAZ.
ISSN:0950-7116
1754-2138
DOI:10.1080/09507116.2013.796667