Evaluation of anisotropic deformation behaviors in H-charged Zircaloy-4 tube

Yao Ding; Ju Seong Kim; Hoa Kim; Chanhee Won; Seungho Choi; Sung Hyuk Park; Jonghun Yoon

doi:10.1016/j.jnucmat.2018.05.083

Evaluation of anisotropic deformation behaviors in H-charged Zircaloy-4 tube

Yao Ding, Ju Seong Kim, Hoa Kim, Chanhee Won, Seungho Choi, Sung Hyuk Park, Jonghun Yoon

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5 Scopus citations

Abstract

In this paper, we focus mainly on evaluating the anisotropy evolution in Zircaloy-4 tubes with respect to hydrogen pickup which tends to affect the deformation behavior and fracture elongation due to embrittlement phenomenon induced by Zr hydrides. To capture the complex material behaviors of the H-charged (166 ppm) Zircaloy-4 tubes, we have applied the Hill anisotropic yield criterion by carrying out several material tests, such as the axial tensile, ring tensile, and axial crushing tests, for calibrating the anisotropic coefficients based on the directional strength and strain ratios. It makes possible to simulate the directional flow curves of the as-received and the H-charged Zircaloy-4 tubes based on the directional strength ratios along the axial and hoop directions, respectively, as well as a variation in deformation modes in the axial crushing test with substantial accuracy.

Original language	English
Pages (from-to)	440-450
Number of pages	11
Journal	Journal of Nuclear Materials
Volume	508
DOIs	https://doi.org/10.1016/j.jnucmat.2018.05.083
State	Published - Sep 2018

Keywords

Anisotropic yield criterion
Axial crushing test
Hydrogen pickup
Ring tensile test
Zircaloy-4 alloy

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10.1016/j.jnucmat.2018.05.083

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title = "Evaluation of anisotropic deformation behaviors in H-charged Zircaloy-4 tube",

abstract = "In this paper, we focus mainly on evaluating the anisotropy evolution in Zircaloy-4 tubes with respect to hydrogen pickup which tends to affect the deformation behavior and fracture elongation due to embrittlement phenomenon induced by Zr hydrides. To capture the complex material behaviors of the H-charged (166 ppm) Zircaloy-4 tubes, we have applied the Hill anisotropic yield criterion by carrying out several material tests, such as the axial tensile, ring tensile, and axial crushing tests, for calibrating the anisotropic coefficients based on the directional strength and strain ratios. It makes possible to simulate the directional flow curves of the as-received and the H-charged Zircaloy-4 tubes based on the directional strength ratios along the axial and hoop directions, respectively, as well as a variation in deformation modes in the axial crushing test with substantial accuracy.",

keywords = "Anisotropic yield criterion, Axial crushing test, Hydrogen pickup, Ring tensile test, Zircaloy-4 alloy",

author = "Yao Ding and Kim, {Ju Seong} and Hoa Kim and Chanhee Won and Seungho Choi and Park, {Sung Hyuk} and Jonghun Yoon",

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doi = "10.1016/j.jnucmat.2018.05.083",

language = "English",

volume = "508",

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T1 - Evaluation of anisotropic deformation behaviors in H-charged Zircaloy-4 tube

AU - Ding, Yao

AU - Kim, Ju Seong

AU - Kim, Hoa

AU - Won, Chanhee

AU - Choi, Seungho

AU - Park, Sung Hyuk

AU - Yoon, Jonghun

PY - 2018/9

Y1 - 2018/9

N2 - In this paper, we focus mainly on evaluating the anisotropy evolution in Zircaloy-4 tubes with respect to hydrogen pickup which tends to affect the deformation behavior and fracture elongation due to embrittlement phenomenon induced by Zr hydrides. To capture the complex material behaviors of the H-charged (166 ppm) Zircaloy-4 tubes, we have applied the Hill anisotropic yield criterion by carrying out several material tests, such as the axial tensile, ring tensile, and axial crushing tests, for calibrating the anisotropic coefficients based on the directional strength and strain ratios. It makes possible to simulate the directional flow curves of the as-received and the H-charged Zircaloy-4 tubes based on the directional strength ratios along the axial and hoop directions, respectively, as well as a variation in deformation modes in the axial crushing test with substantial accuracy.

AB - In this paper, we focus mainly on evaluating the anisotropy evolution in Zircaloy-4 tubes with respect to hydrogen pickup which tends to affect the deformation behavior and fracture elongation due to embrittlement phenomenon induced by Zr hydrides. To capture the complex material behaviors of the H-charged (166 ppm) Zircaloy-4 tubes, we have applied the Hill anisotropic yield criterion by carrying out several material tests, such as the axial tensile, ring tensile, and axial crushing tests, for calibrating the anisotropic coefficients based on the directional strength and strain ratios. It makes possible to simulate the directional flow curves of the as-received and the H-charged Zircaloy-4 tubes based on the directional strength ratios along the axial and hoop directions, respectively, as well as a variation in deformation modes in the axial crushing test with substantial accuracy.

KW - Anisotropic yield criterion

KW - Axial crushing test

KW - Hydrogen pickup

KW - Ring tensile test

KW - Zircaloy-4 alloy

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DO - 10.1016/j.jnucmat.2018.05.083

M3 - Article

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VL - 508

SP - 440

EP - 450

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Evaluation of anisotropic deformation behaviors in H-charged Zircaloy-4 tube

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Keywords

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