Anisotropic threshold stress intensity factor, K(IH) and crack growth rate in delayed hydride cracking of Zr-2.5Nb pressure tubes

Anisotropic threshold stress intensity factor, K(IH) and crack growth rate in delayed hydride cracking of Zr-2.5Nb pressure tubes

Kim et al systematically investigate the delayed hydride cracking velocity and the threshold-stress intensity factor of a Zr-2.5Nb pressure tube as a function of orientation and elucidate the cause of this anistropic DHC behavior. The anistropic DHC behavior of a Zr-2.5Nb pressure tube is discussed...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2002-03, Vol.33 (3), p.919-925
Hauptverfasser: Kim, Young Suk, Kim, Sung Soo, Kwon, Sang Chul, Im, Kyung Soo, Cheong, Yong Moo
Format: Artikel
Sprache:eng
Schlagworte:
Metallurgy
Metals
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Zusammenfassung:Kim et al systematically investigate the delayed hydride cracking velocity and the threshold-stress intensity factor of a Zr-2.5Nb pressure tube as a function of orientation and elucidate the cause of this anistropic DHC behavior. The anistropic DHC behavior of a Zr-2.5Nb pressure tube is discussed based on the stress gradient ahead of the crack tip governed by strain-hardening rate after yielding and a change in texture accompanied by DHC, and the distribution of the {1017} hydride habit planes.
ISSN:1073-5623
1543-1940