The skin effect in an Mg-RE high pressure die cast alloy

Yang, K., Nagasekhar, A. V., Caceres, C. H. and Easton, M. (2010). The skin effect in an Mg-RE high pressure die cast alloy. In: Jian-Feng Nie and Allan Morton, PRICM7: Selected peer review papers from the seventh Pacific Rim International Conference on Advanced Materials and Processing. 7th Pacific Rim International Conference on Advanced Materials and Processing (PRICM 7), Cairns, QLD, Australia, (691-694). 2-6 August 2010. doi:10.4028/www.scientific.net/MSF.654-656.691

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Author Yang, K.
Nagasekhar, A. V.
Caceres, C. H.
Easton, M.
Title of paper The skin effect in an Mg-RE high pressure die cast alloy
Conference name 7th Pacific Rim International Conference on Advanced Materials and Processing (PRICM 7)
Conference location Cairns, QLD, Australia
Conference dates 2-6 August 2010
Proceedings title PRICM7: Selected peer review papers from the seventh Pacific Rim International Conference on Advanced Materials and Processing   Check publisher's open access policy
Journal name Materials Science Forum   Check publisher's open access policy
Place of Publication Stafa-Zurich, Switzerland
Publisher Trans Tech Publications
Publication Year 2010
Sub-type Fully published paper
DOI 10.4028/www.scientific.net/MSF.654-656.691
ISBN 9780878492558
0878492550
ISSN 0255-5476
1422-6375
0250-9776
Editor Jian-Feng Nie
Allan Morton
Volume 654-656
Start page 691
End page 694
Total pages 4
Collection year 2011
Language eng
Formatted Abstract/Summary
Cross-sectional microhardness maps of cast-to-shape flat tensile specimens have been obtained for a binary Mg-3.44 mass% La alloy. Higher microhardness numbers were generally found near the casting surface, at the corners and along the segregation band. The higher hardness values were ascribed to the finer solidification microstructure near the surface and to localized positive macro segregation. The majority of lower hardness numbers was found at the core region. Lower hardness values were ascribed to the coarser grain size prevalent at the core and to dispersed microporosity. The non uniformity of the harder surface layer in both depth and hardness appeared related to local homogeneities in the grain size distribution caused by the scattered presence of large externally solidified grains.
© (2010) Trans Tech Publications, Switzerland

Keyword Magnesium-RE alloys
High pressure die castings
Skin effect
Hall-Petch effect
Microhardness
Magnesium-aluminium alloys
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented during and published under Symposium C: "Light Metals and Alloys: Magnesium Casting Alloys"

 
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Created: Thu, 24 Mar 2011, 13:09:59 EST by Sally Beard on behalf of Materials