Interface dominated deformation transition from inhomogeneous to apparent homogeneous mode in amorphous/amorphous nanolaminates

Z.Q.Chen ¹M.C.Li ²J.S.Cao ³F.C.Li ⁴S.W.Guo ⁵B.A.Sun ⁴H.B.Ke ⁶W.H.Wang⁴

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作者信息

1. Songshan Lake Materials Laboratory,Dongguan 523808,PR China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,PR China;Institute of Materials Engineering,Nanjing University,Nantong 226019,PR China
2. School of Physics Science and Technology,Xinjiang University,Urumqi,Xinjiang 830046,PR China
3. Institute of Physics,Chinese Academy of Sciences,Beijing 100190,PR China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,PR China
4. Songshan Lake Materials Laboratory,Dongguan 523808,PR China;Institute of Physics,Chinese Academy of Sciences,Beijing 100190,PR China
5. State Key Laboratory for Mechanical Behavior of Material,Xi'an Jiaotong University,Xi'an 710049,PR China
6. Songshan Lake Materials Laboratory,Dongguan 523808,PR China
折叠

Abstract

The amorphous/amorphous nanolaminates(A/ANLs)have aroused great attentions owing to their tunable structure and enhanced mechanical properties.However,the plastic deformation mechanism of A/ANLs have yet been clarified.Here,we systematically examined the mechanical properties and deformation behavior of series of NiNb/ZrCuNiAl A/ANLs via nanoindentaion test.It was found that both the amount and morphology of amorphous/amorphous interface(A/AIs)played crucial roles in the plastic deforma-tion of A/ANLs.Less and straighter A/AIs facilitated multiple shear banding deformation,of which the hardness increased with decreasing layer thickness,as the A/Als hindered the propagation of shear bands(SBs).Whilst,more and wavier A/AIs promoted homogeneous deformation,of which the hardness stayed at a much lower value and was relatively irrelevant with the layer thickness,for the promoted activa-tion of shear transformation zones by A/Als.Our results provide guidance for modifying the mechanical properties of amorphous alloys with interface engineering design.

Key words

Amorphous alloys/Nanolaminates/Shear bands/Hardness/Interface

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基金项目

Guangdong Basic and Applied Basic Research Foundation,China(2021A1515010756)

Guangdong Basic and Applied Basic Research Foundation,China(2019B1515130005)

Guangdong Ma-jor Project of Basic and Applied Basic Research,China(2019B030302010)

Natural Science Foundation of Jiangsu Province,China(BK20180266)

Basic Research Pro-gram of Nantong(JC2019083)

National Natural Sci-ence Foundation of China(51822107)

National Natural Sci-ence Foundation of China(11972037)

National Natural Sci-ence Foundation of China(52001269)

Fundamental Research Funds for the Central Universi-ties,the National Key Research and Development Plan(2018YFA0703603)

Strategic Priority Research Program of Chi-nese Academy of Sciences(XDB30000000)

出版年

2022

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量36

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