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纳米晶体材料中小角度晶界湮没过程研究 被引量:2

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摘要 本文针对纳米晶材料演化过程中的小角度晶界湮没,建立位错运动方程,计算模拟小角度晶界的晶格位错在外应力的作用下发生的运动,结果表明导致小角度晶界湮没的重要原因是切应力作用,破坏了晶界位错的受力平衡。这种湮没过程导致了高浓度的可整体移动的晶格位错形成。在纳米晶体材料中,这种被施加应力诱发的位错集体迁移,具有可塑的局部流动特性。
出处 《广西物理》 2015年第2期1-4,共4页 Guangxi Physics
基金 国家自然科学基金项目(51161003) 广西自然科学重点基金(2012GXNSFDA053001) 广西大学实验技能和科技创新能力训练基金项目(SYJN20130408 20130410 20130412 20130416)
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