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Journal of Materials Engineering and Performance
Erschienen in: Journal of Materials Engineering and Performance 4/2014

01.04.2014

Effect of Preweld Heat Treatment on the Microstructure of Heat-Affected Zone (HAZ) and Weldability of Inconel 939 Superalloy

verfasst von: M. A. González Albarrán, D. I. Martínez, E. Díaz, J. C. Díaz, I. Guzman, E. Saucedo, A. Ma. Guzman

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 4/2014

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Abstract

The effect of two preweld heat treatments on the final microstructure of a heat-affected zone (HAZ) and its effect on the weldability of the superalloy Inconel 939 have been analyzed. The HAZ cracking related to the mechanical driving force criteria during the cooling cycle was directly influenced by the strain state at this zone. Heat treatments result in the formation of (1) irregular γ′ precipitates (more negative misfits) which showed higher strain (high density of interfacial dislocations) and (2) spherical precipitates (near-zero misfits) which as a result of their structure improve weldability by reducing weld HAZ cracking considerably.
Nächster Artikel Microstructural Evolution and Deformation Behavior of a Hot-Rolled and Heat Treated Fe-8Mn-4Al-0.2C Steel

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Metadaten
Titel
Effect of Preweld Heat Treatment on the Microstructure of Heat-Affected Zone (HAZ) and Weldability of Inconel 939 Superalloy
verfasst von
M. A. González Albarrán
D. I. Martínez
E. Díaz
J. C. Díaz
I. Guzman
E. Saucedo
A. Ma. Guzman
Publikationsdatum
01.04.2014
Verlag
Springer US
Erschienen in
Journal of Materials Engineering and Performance / Ausgabe 4/2014
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI
https://doi.org/10.1007/s11665-013-0704-y

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