A Comparative Study of Delayed Hydride Cracking in Zr-3.5Sn-0.8Nb-0.8Mo and Zr-2.5Nb

Qiang Fang

doi:10.4028/www.scientific.net/MSF.917.207

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HomeMaterials Science ForumMaterials Science Forum Vol. 917A Comparative Study of Delayed Hydride Cracking in...

A Comparative Study of Delayed Hydride Cracking in Zr-3.5Sn-0.8Nb-0.8Mo and Zr-2.5Nb

Abstract:

A new test procedure for measuring the resistance to delayed hydride cracking was developed. The critical stress intensity factors for delayed hydride cracking and the crack growth velocities of Zr-3.5Sn-0.8Nb-0.8Mo alloy with different heat treatments were evaluated and compared with Zr-2.5Nb. It was found that Delayed Hydride Cracking (DHC) crack growth velocity increases with the alloy strength, and the critical stress intensity factor is independent of heat treatment history or alloy composition.

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Periodical:

Materials Science Forum (Volume 917)

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207-211

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.917.207

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Online since:

March 2018

Authors:

Qiang Fang*

Keywords:

Delayed Hydride Cracking (DHC), Excel Alloy

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