Fatigue crack propagation behavior of NZ2 zirconium alloy with different hydrogen contents

Jun Zhou; Zhongkui Li; Jianjun Zhang; Meisheng Zhu; Wensheng Wang; Feng Tian; Minghua Shi; Lian Zhou

Fatigue crack propagation behavior of NZ2 zirconium alloy with different hydrogen contents

Jun Zhou, Zhongkui Li, Jianjun Zhang, Meisheng Zhu, Wensheng Wang, Feng Tian, Minghua Shi, Lian Zhou

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Fatigue crack propagation behavior of an advanced Zr-Sn-Nb alloy NZ2 with different hydrogen contents (0, 200, 450, and 730 μg/g) was investigated by standard M(T) specimens. The results showed that stable crack propagation behavior obeyed the Paris Law, i.e. da/dN=C(△K)², whether the hydrogen content is high or low. But the power exponent n of the Paris Law was decreased with the hydrogen content increasing; the increment of hydrogen content can decrease the ductility of NZ2 alloy and enhance the fatigue crack growth rate, especially when the specimens have higher hydrogen content.

Original language	English
Pages (from-to)	1797-1800
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	38
Issue number	10
State	Published - Oct 2009

Keywords

Fatigue crack propagation
Hydride
NZ2 zirconium alloy

Cite this

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title = "Fatigue crack propagation behavior of NZ2 zirconium alloy with different hydrogen contents",

abstract = "Fatigue crack propagation behavior of an advanced Zr-Sn-Nb alloy NZ2 with different hydrogen contents (0, 200, 450, and 730 μg/g) was investigated by standard M(T) specimens. The results showed that stable crack propagation behavior obeyed the Paris Law, i.e. da/dN=C(△K)2, whether the hydrogen content is high or low. But the power exponent n of the Paris Law was decreased with the hydrogen content increasing; the increment of hydrogen content can decrease the ductility of NZ2 alloy and enhance the fatigue crack growth rate, especially when the specimens have higher hydrogen content.",

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T1 - Fatigue crack propagation behavior of NZ2 zirconium alloy with different hydrogen contents

AU - Zhou, Jun

AU - Li, Zhongkui

AU - Zhang, Jianjun

AU - Zhu, Meisheng

AU - Wang, Wensheng

AU - Tian, Feng

AU - Shi, Minghua

AU - Zhou, Lian

PY - 2009/10

Y1 - 2009/10

N2 - Fatigue crack propagation behavior of an advanced Zr-Sn-Nb alloy NZ2 with different hydrogen contents (0, 200, 450, and 730 μg/g) was investigated by standard M(T) specimens. The results showed that stable crack propagation behavior obeyed the Paris Law, i.e. da/dN=C(△K)2, whether the hydrogen content is high or low. But the power exponent n of the Paris Law was decreased with the hydrogen content increasing; the increment of hydrogen content can decrease the ductility of NZ2 alloy and enhance the fatigue crack growth rate, especially when the specimens have higher hydrogen content.

AB - Fatigue crack propagation behavior of an advanced Zr-Sn-Nb alloy NZ2 with different hydrogen contents (0, 200, 450, and 730 μg/g) was investigated by standard M(T) specimens. The results showed that stable crack propagation behavior obeyed the Paris Law, i.e. da/dN=C(△K)2, whether the hydrogen content is high or low. But the power exponent n of the Paris Law was decreased with the hydrogen content increasing; the increment of hydrogen content can decrease the ductility of NZ2 alloy and enhance the fatigue crack growth rate, especially when the specimens have higher hydrogen content.

KW - Fatigue crack propagation

KW - Hydride

KW - NZ2 zirconium alloy

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SN - 1002-185X

VL - 38

SP - 1797

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JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 10

ER -

Fatigue crack propagation behavior of NZ2 zirconium alloy with different hydrogen contents

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