Tension behavior of free-standing amorphous film and amorphous-crystalline nanolaminates in submicron scale
Tension behavior of free-standing amorphous film and amorphous-crystalline nanolaminates in submicron scale
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DOI：
10.1016/j.scriptamat.2011.07.015
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发表时间：
2011-10-01
影响因子：
6
通讯作者：
Kuan, S. Y.
中科院分区：
文献类型：
--
作者：
Lee, C. J.;Lin, H. K.;Kuan, S. Y.
对自支撑非晶ZrCu薄膜和非晶态ZrCu/Cu纳米叠层进行了薄膜挠曲实验，研究了它们的拉伸变形。ZrCu试样表现出较差的变形能力与脆性断裂。相比之下，对于纳米层压材料发生适度的塑性，并且塑性随着各个层的厚度从100 nm减小到25 nm而增加。层厚为25 nm的ZrCu/Cu纳米叠层表现出接近45度的断裂角和韧窝断裂表面，这意味着适度的拉伸韧性断裂。(C)2011 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
Free-standing amorphous ZrCu film and amorphous crystalline ZrCu/Cu nanolaminates are subjected to membrane deflection experiments to investigate their tensile deformation. The ZrCu specimen exhibits poor deformability with brittle fracture. In comparison, moderate plasticity occurs for the nanolaminates, and the plasticity increases as the thickness of the individual layers decreases from 100 down to 25 nm. The ZrCu/Cu nanolaminates with a layer thickness of 25 nm exhibit a fracture angle close to 45 degrees and a dimpled fracture surface, implying moderate tensile ductile fracture. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.