Effect of Sr Addition on Microstructure and Mechanical Properties of Semi-Solid 2024 Al Alloys

Nisachon Khunbanterng; Sirikul Wisutmethangoon; Thawatchai Plookphol; Jessada Wannasin

doi:10.4028/www.scientific.net/AMM.496-500.336

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 496-500Effect of Sr Addition on Microstructure and...

Effect of Sr Addition on Microstructure and Mechanical Properties of Semi-Solid 2024 Al Alloys

Abstract:

Semi-solid 2024 Al alloys with strontium (Sr) addition of 0.15 wt% and 0.3 wt% were prepared by Gas Induced Semi-Solid (GISS) process. Effect of Sr addition on the microstructure and mechanical properties of the semi-solid 2024 alloy was investigated. It was found that the tensile strength and % elongation of the T6 heat treated alloy with the Sr addition were higher than those without Sr addition owing to the reduction of Mg₂Si phase formation. The semi-solid 2024 Al alloy with 0.15%Sr addition obtained the average highest tensile strength of 382 MPa and elongation of 6.45%.

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Periodical:

Applied Mechanics and Materials (Volumes 496-500)

Pages:

336-339

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.496-500.336

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Online since:

January 2014

Authors:

Nisachon Khunbanterng, Sirikul Wisutmethangoon*, Thawatchai Plookphol, Jessada Wannasin

Keywords:

Aluminium Alloy 2024, Heat Treatment, Mechanical Property, Microstructure, Semi-Solid, Strontium

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