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Please use this identifier to cite or link to this item: http://apo.ansto.gov.au/dspace/handle/10238/5338

Title: Hydrogen-induced microstructure, texture and mechanical property evolutions in a high-pressure torsion processed zirconium alloy
Authors: Wang, ZY
Garbe, U
Li, HJ
Studer, AJ
Harrison, RP
Callaghan, MD
Wang, YB
Liao, XZ
Keywords: MICROSTRUCTURE
HYDROGEN
TORSION
NEUTRON DIFFRACTION
HYDROGEN EMBRITTLEMENT
PRECIPITATION
HYDRIDES
NUCLEATION
TEXTURE
Issue Date: 1-Nov-2012
Publisher: PERGAMON ELSEVIER SCIENCE LTD
Citation: Wang, Z. Y., Garbe, U., Li, H. J., Studer, A. J., Harrison, R. P., Callaghan, M. D., Wang, Y. B., & Liao, X. Z. (2012). Hydrogen-induced microstructure, texture and mechanical property evolutions in a high-pressure torsion processed zirconium alloy. Scripta Materialia, 67(9), 752-755.
Abstract: The gaseous hydriding-induced evolutions of the microstructure, texture and mechanical properties of Zircaloy-4 processed by high-pressure torsion (HPT) were assessed. Much delta-ZrH(1.66) precipitation at 15 atm (21%) incurred significant hardening of vacuum-annealed HPT samples, and pure epsilon-ZrH(2) obtained at 20 atm showed a superior microhardness of 470 HV(0.3) and a low fracture toughness of 0.63 MPa m(1/2). The delta-hydrides presented strong (1 1 1) texture and followed the (0 0 0 1)(alpha-Zr)//{1 1 1}(delta-ZrH1.66) orientation relationship with the alpha-Zr matrix. During hydriding, alpha-Zr recrystallization texture was developed from the initial deformation texture. © 2012, Elsevier Ltd.
URI: http://dx.doi.org/10.1016/j.scriptamat.2012.07.033
http://apo.ansto.gov.au/dspace/handle/10238/5338
ISSN: 1359-6462
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