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Environment-assisted cracking of cast WE43-T6 magnesium

Abstract:

Environment-assisted cracking of WE43 cast magnesium (4.2 wt.% Yt, 2.3 wt.% Nd, 0.7% Zr, 0.8% HRE) in the T6 peak-aged condition was induced in ambient air in notched specimens. The mechanism of fracture was studied using electron backscatter diffraction, serial sectioning and in situ observations of crack propagation. Cracks initiated at the intergranular brittle intermetallic, and propagated by transgranular cleavage. These observations imply that a microstructural model for the static fati...

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Publication status:
Published

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Publisher copy:
10.1016/j.msea.2003.12.074

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Materials
Bin Ahmad, A More by this author
Torkamani, S More by this author
Volume:
387
Issue:
1-2 SPEC. ISS.
Pages:
419-423
Publication date:
2004-12-15
DOI:
ISSN:
0921-5093
URN:
uuid:80a134db-e82b-40ad-97ab-fa186d55d037
Source identifiers:
177323
Local pid:
pubs:177323

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