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小蘭花銀蟲(chóng) (著名寫手)
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靜態(tài)回復(fù)過(guò)程使得晶粒內(nèi)部的儲(chǔ)存能發(fā)生變化，假設(shè) 點(diǎn)缺陷、位錯(cuò)的運(yùn)動(dòng)等使得晶粒內(nèi)的儲(chǔ)存能減少；晶界處的區(qū)域由于位錯(cuò)密度較大，儲(chǔ)存能為晶粒內(nèi)部的2倍；同時(shí)，較多位錯(cuò)在三叉晶界處形成位錯(cuò)纏結(jié)，使得該處的儲(chǔ)存能為晶粒內(nèi)部的2.5倍。 考慮到位錯(cuò)密度在晶界附近分布有一定的區(qū)域范圍，使得晶界兩側(cè)附近周圍的儲(chǔ)存能都較晶粒內(nèi)部中心區(qū)域的儲(chǔ)存能高，由此得到變形的小晶粒內(nèi)部?jī)?chǔ)存能要比大晶粒內(nèi)部的儲(chǔ)存能要高，因?yàn)樾【Я?nèi)部的位錯(cuò)密度比大晶粒內(nèi)部的密度要高。 翻譯： Static recovery process makes the stored energy inside grains changed. We assume that point defects and dislocations in movement and so on, make the stored energy reducing inside grains; and Because of high dislocation density in grain boundary regions, their stored energy are 2 times than which within grains; meanwhile, due to the dislocation tangle in triple junctions. their stored energy are 2.5 times than which within grains. Considering the dislocation density distribution near the grain boundary has a certain width, the stored energy on both sides of the grain boundary is higher than which in the central of grains. So the stored energy within the small grains is higher than within large grains |
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xiaomuyu2010
木蟲(chóng) (小有名氣)
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小蘭花(金幣+6, 翻譯EPI+1):潤(rùn)色得挺好，謝謝你的幫忙! 2010-09-26 16:29:53
小蘭花(金幣+6):多謝幫忙！ 2010-10-06 16:52:16
小蘭花(金幣+6):多謝幫忙！ 2010-10-06 16:52:16
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Static recovery process creates a change in the stored energy inside the crystal grains. It is assumed that point defects and dislocations in movement and other factors result in reduced energy storage inside grains; and because of high dislocation density in the grain boundary regions, their stored energy is twice as much as that within the grains; meanwhile, the dislocation tangle in the triple junctions gives rise in stored energy that is 2.5 times as muchh as the energy storage within the grains. Considering the fact that the dislocation density distribution near the grain boundary has a certain range, the stored energy on both sides of the grain boundary is higher than that in the central region of grains. So the stored energy within the small grains is higher than within large grains |
2樓2010-09-25 20:10:19
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