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Microscopic failure modes of hpdc AZ91HP magnesium alloy under monotonic loading / D.G. Leo Prakash, Doris Regener, W.J.J. Vorster, Leo Prakash

Materials Science and Engineering: A, Volume: 488, Issue: 1-2, Pages: 303 - 310

Swansea University Author: Leo Prakash

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DOI (Published version): 10.1016/j.msea.2007.11.011

Abstract

The microscopic failure modes of high pressure die cast (hpdc) AZ91HP magnesium alloy is identified by means of in situ tensile analysis. The study aims at: (i) explaining the consequence of different micro-inhomogeneities on failure and, (ii) confirming to which extent shrinkage porosity influences...

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Published in: Materials Science and Engineering: A
Published: 2008
URI: https://cronfa.swan.ac.uk/Record/cronfa17640
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Abstract: The microscopic failure modes of high pressure die cast (hpdc) AZ91HP magnesium alloy is identified by means of in situ tensile analysis. The study aims at: (i) explaining the consequence of different micro-inhomogeneities on failure and, (ii) confirming to which extent shrinkage porosity influences failure. Microstructural analysis at different deformation stages verify interaction of pores, Mg17Al12 (β) particles and inclusions during failure and indicates predominant intergranular brittle failure of the material.
Keywords: AZ91 magnesium alloy; Fracture; In situ tensile analysis; SEM; Pressure die casting
College: College of Engineering
Issue: 1-2
Start Page: 303
End Page: 310