Study on Erosion-Abrasion Properties of Al-Mn Alloy and its Composite Reinforced with Al2O3 Particulates

Bing Liu; Xin Mei Li; Yao Ning Sun; Liu Xiang; Chun Yao Wang

doi:10.4028/www.scientific.net/AMR.287-290.599

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 287-290Study on Erosion-Abrasion Properties of Al-Mn...

Study on Erosion-Abrasion Properties of Al-Mn Alloy and its Composite Reinforced with Al₂O₃ Particulates

Abstract:

Effects of different impact angles such as 45°and 90°on the erosion-abrasion properties of Al-Mn alloy and its composites reinforced with Al₂O₃ particulates were studied by rotating erosion-abrasion test, and the failure mechanism were analyzed. The results show that the as-cast Al-Mn alloy is composed of aluminium-manganese solid solution, MnAl6 and Al₁₁Mn₄ phase, while the δ-Al₂O₃ particles are included in the composites besides the aforementioned microstructures. The cumulative mass loss of the Al-Mn alloy and its composites at 45° are both more than those at 90°, however, the loss of the composites are lower than those of the Al-Mn alloy, suggesting that the former possesses more excellent erosion-abrasion resistance properties.