Influence of Interlayer Macrostress on Oxidation of Shell Tubes from Zr-Based Alloys

Margarita Isaenkova; Yury Perlovich; Pavel Medvedev; Olga Krymskaya; Soe San Thu

doi:10.4028/www.scientific.net/AMR.996.902

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 996Influence of Interlayer Macrostress on Oxidation...

Influence of Interlayer Macrostress on Oxidation of Shell Tubes from Zr-Based Alloys

Abstract:

Shell tubes from Zr-based alloys are responsible construction elements of atomic reactors. Under exploitation these tubes undergo to oxidation, which can become a reason for their cracking. Inevitable texture layering arises by rolling of tubes due to different values of the Q-factor, calculated for inside and outside tube layers. Therefore these layers are characterized by different texture Kearns parameters and, correspondingly, by different thermal expansion. As a result, tensile tangential macrostress operates between layers and oxygen diffusion into tube intensifies.

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Periodical:

Advanced Materials Research (Volume 996)

Pages:

902-905

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.996.902

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Online since:

August 2014

Authors:

Margarita Isaenkova, Yury Perlovich*, Pavel Medvedev, Olga Krymskaya, Soe San Thu

Keywords:

Oxidation, Shell Tubes, Tensile Stress, Texture Layering, Zr-Based Alloys

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