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Metals 2013, 3(4), 337-342; doi:10.3390/met3040337
Article

The Effect of Increasing Sn Content on High-Temperature Mechanical Deformation of an Mg-3%Cu-1%Ca Alloy

Received: 14 September 2013; in revised form: 27 October 2013 / Accepted: 28 October 2013 / Published: 1 November 2013
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Abstract: Chill casting of magnesium alloy samples with secondary alloying elements of Cu, Ca and Sn at % w.t. concentrations in the range 1–5, 0.1–5 and 0.1–3 respectively, gave rise to appreciably enhanced resistance to high-temperature creep, while maintaining good heat conductivity. The latter was considered to be driven by Cu and Mg-Cu intermetallics while it was clear that Sn mediated the high-temperature performance, mainly via networks of Mg2Sn and MgCaSn precipitates along the Mg matrix grain boundaries. It was postulated that Sn formed intermetallics by preferential substitution of Ca atoms and, thus, did not degrade the heat conductivity by retaining Cu. The % w.t. stoichiometry with the optimum combination of heat conductivity and resistance to high-temperature creep was found to be Mg-3Cu-1Ca-0.1Sn.
Keywords: Mg alloys; heat conductivity; creep resistance; tin addition; Mg-Cu-Ca-Sn Mg alloys; heat conductivity; creep resistance; tin addition; Mg-Cu-Ca-Sn
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Antipas, G.S. The Effect of Increasing Sn Content on High-Temperature Mechanical Deformation of an Mg-3%Cu-1%Ca Alloy. Metals 2013, 3, 337-342.

AMA Style

Antipas GS. The Effect of Increasing Sn Content on High-Temperature Mechanical Deformation of an Mg-3%Cu-1%Ca Alloy. Metals. 2013; 3(4):337-342.

Chicago/Turabian Style

Antipas, Georgios S. 2013. "The Effect of Increasing Sn Content on High-Temperature Mechanical Deformation of an Mg-3%Cu-1%Ca Alloy." Metals 3, no. 4: 337-342.


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