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1楼 2015-12-10 16:12:54

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kevinhan1: 金币+10, 翻译EPI+1, ★★★★★最佳答案 2015-12-11 10:10:07

It can be seen that the friction mechanism of high silicon aluminum alloy is the small second phase particle with high hardness on the soft aluminum substrate. In the process of wear, the soft substrate is easy to wear and produce some pits to store oil, but the hard particles are helpful to ensure its higher wear resistance. Moreover, more and smaller hard particles contained in substrate, the better wear resistance of high silicon aluminum alloy will occur. However, the friction mechanism of cast iron is that the soft graphite distribute on the hard substrate, in wear process, soft graphite is apt to wear to store oil and plays a lubrication role. While the hard substrate plays a crucial role in supporting and wear resistance.

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2楼2015-12-10 20:41:48

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