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【答案】應(yīng)助回帖
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kevinhan1: 金幣+40, 翻譯EPI+1, ★★★很有幫助 2016-07-11 09:39:07
基體α相 是在 摩擦力的 作用下 易于 產(chǎn)生 塑性變形、流動(dòng)，而在 其中 均勻分布的是 硬質(zhì)硅相,它的 塑性差,不易變形,從而 阻礙 α相的 塑性流動(dòng),結(jié)果在 硬質(zhì)相 周圍 產(chǎn)生 大量的 位錯(cuò) 及 位錯(cuò)纏結(jié),而位錯(cuò)的 產(chǎn)生 有利于 提高 材料的 硬度和耐磨性
matrix α-phase is likely to be subjected to plastic deformation and flow under the effect of friction force。 However the hard Si phase, which is uniformly distributed within, is of poor plasticity and not easy to deform, so that the plastic flow of α phase can be hindered, and thus massive amount of dislocations and dislocation tangles are produced around the hard phase. Due to the emergence of dislocations, the hardness and abrasive resistance of material can be improved. |
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