Effect of hydrogen treatment on properties and structure development in Zr–2.5Nb alloy

Flow stresses at 600°C of the annealed and quenched Zr–2.5Nb alloy with hydrogen content varying from 0.2 to 20at%, and microstructure development of the alloy after deformation and subsequent vacuum annealing at 580°C were studied. It was found that increase in the volume fraction of the βZr-phase...

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Published inMaterials science & engineering. A, Structural materials : properties, microstructure and processing Vol. 608; pp. 25 - 34
Main Authors Murzinova, M.A., Shagiev, M.R., Srivastava, D., Manikrishna, K.V., Neogy, S., Dey, G.K.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.2014
Subjects
Alloy development
Deformation
Flow stress
Heat treatment
Hot deformation
Hydrogen
Microstructure
Microstructure development
Quenching (cooling)
Vacuum annealing
Yield strength
Zirconium
Zirconium base alloys
Hot deformation
Zirconium
Heat treatment
Hydrogen
Microstructure development
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Summary:Flow stresses at 600°C of the annealed and quenched Zr–2.5Nb alloy with hydrogen content varying from 0.2 to 20at%, and microstructure development of the alloy after deformation and subsequent vacuum annealing at 580°C were studied. It was found that increase in the volume fraction of the βZr-phase due to hydrogen alloying resulted in substantial decrease in the flow stresses and led to αZr-grain/subgrain refinement to submicron level during the deformation at 600°C. Vacuum annealing resulted in decrease of the hydrogen content and was accompanied by αZr-grain growth.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2014.04.016