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Finite element analysis of residual stresses in metallic coatings through a compound casting

Liu,Y, Chen,Y, Rolfe,BF and Yang,C 2014, Finite element analysis of residual stresses in metallic coatings through a compound casting, Applied mechanics and materials, vol. 553, pp. 48-53, doi: 10.4028/www.scientific.net/AMM.553.48.

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Title Finite element analysis of residual stresses in metallic coatings through a compound casting
Author(s) Liu,Y
Chen,Y
Rolfe,BFORCID iD for Rolfe,BF orcid.org/0000-0001-8516-6170
Yang,C
Journal name Applied mechanics and materials
Volume number 553
Start page 48
End page 53
Total pages 6
Publisher Trans Tech Publications
Place of publication Stafa-Zurich, Switzerland
Publication date 2014
ISSN 1660-9336
1662-7482
Keyword(s) Al
Birth and death element technique
Compound casting
Finite element modeling
Mg
Residual stresses
Summary Al and Mg alloys are widely used in industry as main lightweight alloys. They have excellent properties, such as low density, high ductility, and high specific strength, and so on. Generally speaking, Mg alloys are better than Al alloys. However the corrosion of Mg alloys is much more difficult to control compared Al alloys. Therefore to combine these two lightweight alloys, a composite-like structure is an ideal solution since Al alloys can be used as protective coatings for Mg alloys. Compound casting is a realistic technique to get this coating system. In the current study, we numerically study the compound casting using finite element method (FEM) to make these two alloys, a composite-like structure, satisfy requirements to resist corrosion required from industry, in which the aluminum layer is acting as a protective coating for the magnesium substrate. Several finite element models have been developed by using the birth and death element technique and we focus on compound casting-induced residual stresses in the compounded structure. The numerical results obtained from the proposed finite element models show the distribution profiles of thermal residual stresses. We found the major factors influencing the residual stresses are the temperature to pre-heating the Al substrate and the thickness of Mg deposits. © (2014) Trans Tech Publications, Switzerland.
Language eng
DOI 10.4028/www.scientific.net/AMM.553.48
Field of Research 091307 Numerical Modelling and Mechanical Characterisation
Socio Economic Objective 861205 Sheet Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Trans Tech Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30071695

Document type: Journal Article
Collection: School of Engineering
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