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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 421Effect of Y on Microstructure and Mechanical...

Effect of Y on Microstructure and Mechanical Properties of Aluminium Alloy

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Abstract:

The effects of yttrium (Y) on microstructures and mechanical properties of aluminium alloy were investigated in detail by scanning electronic microscope (SEM), energy dispersive spectrum (EDS),X-ray diffraction and tensile test. The results show that the trend of alloys tensile strength and elongation with increasing of the Y content is a broken line. When the Y content is increased up to 0.30%, the tensile strength and elongation are 105MPa and 10.50% respectively, meanwhile, the fractograph exhibited typical ductile dimple fracture pattern. Then the alloy performance is best. The high strength of aluminum alloy is attributed to the size of Al₂Y phase. Addition of Y above 0.30% in aluminum alloy may generate more the coarse Al₂Y particle. It can induce the decrease in the material performance.

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Information Technology for Manufacturing Systems IV

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Periodical:

Applied Mechanics and Materials (Volume 421)

Pages:

250-254

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.421.250

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Online since:

September 2013

Authors:

Hua Shen, He Liang, Wei Dong Yang, Guang Chun Yao, Chuan Sheng Wang

Keywords:

Mechanical Property, Microstructure, Yttrium (Y)

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