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较小的颗粒并不更强:微晶金属在超高的应变率

Laura Wu1, Yuan Yao2, Luyan Li2

  • 1Cornell University, Department of Materials Science and Engineering, Ithaca, New York 14853, USA.

Physical review letters
|January 26, 2026
PubMed
概括

金属通常会随着颗粒大小的减少而加强. 然而,在极高的应变率下,金属中较小的颗粒可以导致软化,这种反向趋势归因于有限的脱位运动.

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