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Effect of Si content on the dry sliding wear properties of spray-deposited Al–Si alloy

✍ Scribed by Feng Wang; Huimin Liu; Yajun Ma; Yuansheng Jin

Publisher
Elsevier Science
Year
2004
Weight
585 KB
Volume
25
Category
Article
ISSN
0261-3069

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✦ Synopsis

In the present investigation, Al-12Si, Al-20Si and Al-25Si (wt%) alloys were synthesized by spray atomization and deposition technique. The wear resistance of the alloys was studied using a pin-on-disc machine under four loads, namely 8.9, 17.8, 26.7 and 35.6 N. The microstructures, worn surfaces and the debris were analyzed in a scanning electron microscope. It has been found that the effect of Si content on dry sliding wear of spray-deposited Al-Si alloy was associated with applied loads. At lower load (8.9 N), with increasing Si content, the wear rate of the alloy was decreased. At higher load (35.6 N), spray-deposited Al-20Si alloy exhibited superior wear resistance to the Al-12Si and Al-25Si alloys.

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