Testing Effects on Shear Transformation Zone Size of Metallic Glassy Films Under Nanoindentation

被引：12

作者：

Ma, Yi ^{[1
]}

Song, Yuxuan ^{[1
]}

Huang, Xianwei ^{[1
]}

Chen, Zhongli ^{[2
]}

Zhang, Taihua ^{[1
,3
]}

机构：

[1] Zhejiang Univ Technol, Coll Mech Engn, Hangzhou 310014, Zhejiang, Peoples R China

[2] China Jiliang Univ, Hangzhou 310018, Zhejiang, Peoples R China

[3] Beihang Univ, Inst Solid Mech, Beijing 100191, Peoples R China

来源：

MICROMACHINES | 2018年 / 9卷 / 12期

基金：

中国国家自然科学基金;

关键词：

metallic glass; nanoindentation; creep; strain rate sensitivity; shear transformation zone; STRAIN-RATE SENSITIVITY; PLASTIC-DEFORMATION; ACTIVATION VOLUME; ROOM-TEMPERATURE; YOUNGS MODULUS; CREEP-BEHAVIOR; INDENTATION; HARDNESS; ALLOY; FLOW;

D O I：

10.3390/mi9120636

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Room-temperature creep tests are performed at the plastic regions of two different metallic glassy films under Berkovich nanoindetation. Relying on the strain rate sensitivity of the steady-state creep curve, shear transformation zone (STZ) size is estimated based on the cooperative shear model (CSM). By applying various indentation depths, loading rates, and holding times, the testing effects on the STZ size of metallic glasses are systematically studied. Experimental results indicate that STZ size is greatly increased with increased indentation depth and shortened holding time. Meanwhile, STZ size is weakly dependent on the loading history. Both the intrinsic and extrinsic reasons are discussed, to reveal the testing effects on the nanoindentation creep flow and STZ size.

引用

页数：15

共 50 条

[1] Nanoindentation study on the characteristic of shear transformation zone volume in metallic glassy films
Ma, Y.
Peng, G. J.
Debela, T. T.
Zhang, T. H.
SCRIPTA MATERIALIA, 2015, 108 : 52 - 55
[2] Nanoindentation study of size effect on shear transformation zone size in a Ni-Nb metallic glass
Ma, Y.
Ye, J. H.
Peng, G. J.
Wen, D. H.
Zhang, T. H.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 627 : 153 - 160
[3] Revealing the length-scale dependence of the spatial mechanical heterogeneity and shear transformation zone size in metallic glassy films
Qiu, W. W.
Ma, Y.
THIN SOLID FILMS, 2023, 768
[4] Nanoindentation study on shear transformation zone in a Cu-Zr-Al metallic glassy film with different thickness
Ma, Y.
Peng, G. J.
Jiang, W. F.
Chen, H.
Zhang, T. H.
JOURNAL OF NON-CRYSTALLINE SOLIDS, 2016, 442 : 67 - 72
[5] Loading rate effect on the creep behavior of metallic glassy films and its correlation with the shear transformation zone
Ma, Y.
Ye, J. H.
Peng, G. J.
Wen, D. H.
Zhang, T. H.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 622 : 76 - 81
[6] Shear-Transformation Zone Activation during Loading and Unloading in Nanoindentation of Metallic Glasses
Avila, Karina E.
Kuechemann, Stefan
Alhafez, Iyad Alabd
Urbassek, Herbert M.
MATERIALS, 2019, 12 (09):
[7] Nanoindentation investigation on the creep mechanism in metallic glassy films
Ma, Y.
Peng, G. J.
Feng, Y. H.
Zhang, T. H.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 651 : 548 - 555
[8] Indentation size effects of mechanical behavior and shear transformation zone in thin film metallic glasses
Wang, C.
Cao, Q. P.
Feng, T.
Wang, X. D.
Zhang, D. X.
Qu, S. X.
Jiang, J. Z.
THIN SOLID FILMS, 2018, 646 : 36 - 43
[9] Size effects on the mechanical properties of thin metallic films studied by nanoindentation
Shugurov, A
Panin, A
Chun, HG
Oskomov, K
Korus 2004, Vol 3, Proceedings, 2004, : 168 - 172
[10] Time-dependent shear transformation zone in thin film metallic glasses revealed by nanoindentation creep
Wang, C.
Cao, Q. P.
Wang, X. D.
Zhang, D. X.
Qu, S. X.
Jiang, J. Z.
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 696 : 239 - 245

← 1 2 3 4 5 →