金属单晶拉伸力学性能及缺陷行为的分子动力学模拟

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6、alcooPerandnickel-Therein硫er，theraresevera】importantresults.Withtheaugmentofthestrainrate，theyiddstrengthandtensilestre盯gthofmetal一singlecrystalcooper朗dnickel初lrise.‘cOrdingly，thetemPeraturea月免ctremarkablymechanicalPr0Pe“ies’withtheincreaseoftcmperatUre，they

7、ieldstrengthofmetal一singleCrystalcooperdeSCendobviously，加八hermore，crossPrOportionalsohavesimilarrule.Asstraininerases，theholesevolve即deventuallycausethebreaKthegeometrycbaracterofhighvacancyconcentrationnickelisresuitedfromtheconneCtinnofatomicvacancyandexPa

8、ndingofcrystalcellde丘姐ts.Keywo川:ComPutersimulati叽MolecularROPerties，VocanCy，EmbededAtomMethodn声明本学位论文是我在导师的指导下取得的研究成果，尽我所知，在本学位论文中，除了加以标注和致谢的部分外，不包含其他人已经发表或公布过的研究成果，也不包含我为获得任何教育机构的学位或学历而使用过的材料。与