Modelling grain boundary strengthening in ultra-fine grained aluminum alloys

被引：52
作者：
Nes, E [1 ]
Holmedal, B
Evangelista, E
Marthinsen, K
机构：
[1] Norwegian Univ Sci & Technol, Dept Mat Technol, N-7491 Trondheim, Norway
[2] Univ Ancona, Dept Mech, I-60131 Ancona, Italy
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 410卷
关键词：
aluminum alloys; modelling work hardening; grain boundary strengthening; ultra-fine grained materials; Luders band;
D O I：
10.1016/j.msea.2005.08.121
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The mechanical properties of aluminum alloys with grain sizes in the range from less than a micron (ultra-fine) to hundreds of microns have been modelled within the framework of the multi-parameter microstructural work hardening model developed by Nes and co-workers [E. Nes, Prog. Mater. Sci. 41 (1998) 129-194; K. Marthinsen, E. Nes, Mater. Sci. Technol. 17 (2001) 376-388; E. Nes, K, Marthinsen, Mater. Sci. Eng. A322 (2002) 176-193; E. Nes, K. Marthinsen, B. Holmedal, Mater. Sci. Technol. B 20 (2004) 1377-1382]. The effect of grain size on the flow stress and work hardening, including a deviation front the Hall-Petch grain size dependency for ultra-fine grain sizes, is well accounted for by the model. A characteristic feature of the stress-strain behaviour of Al-Mg-alloys and ultra-fine grained variants is a sharp yield point followed by Luders-band elongation. A mechanism for such an elastic-plastic transition is Suggested. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：178 / 182
页数：5
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[41]   Effect of grain boundary segregation on the deformation mechanisms and mechanical properties of nanocrystalline binary aluminum alloys [J].
Babicheva, Rita I. ;
Dmitriev, Sergey V. ;
Bai, Lichun ;
Zhang, Ying ;
Kok, Shaw Wei ;
Kang, Guozheng ;
Zhou, Kun .
COMPUTATIONAL MATERIALS SCIENCE, 2016, 117 :445-454
[42]   Thermal Stability of the Structure and Mechanical Properties of Fine-Grained Aluminum Conductor Alloys Al–Mg–Zr–Sc(Yb) [J].
V. N. Chuvil’deev ;
A. V. Nokhrin ;
Ya. S. Shadrina ;
A. V. Piskunov ;
V. I. Kopylov ;
N. N. Berendeev ;
V. N. Chepelenko .
Russian Metallurgy (Metally), 2020, 2020 :987-998
[43]   Preparation of ultra-fine grain Ni-Al-WC coating with interlocking bonding on austenitic stainless steel by laser clad and friction stir processing [J].
Xiong, Yong-jun ;
Qiu, Zi-li ;
Li, Rui-di ;
Yuan, Tie-chui ;
Wu, Hong ;
Liu, Jin-hui .
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2015, 25 (11) :3685-3693
[44]   Mechanical behavior of nanostructured and ultra-fine grained Al containing nanoscale oxide particles processed via spark plasma sintering of nano-sized Al powders [J].
Lin, Yaojun ;
Yan, Zhigang ;
Xu, Bocong ;
Feng, Yongzhao ;
Chen, Fei .
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 745 :677-687
[45]   Thermal Stability of the Structure and Mechanical Properties of Fine-Grained Aluminum Conductor Alloys Al-Mg-Zr-Sc(Yb) [J].
Chuvil'deev, V. N. ;
Nokhrin, A. V. ;
Shadrina, Ya. S. ;
Piskunov, A. V. ;
Kopylov, V. I. ;
Berendeev, N. N. ;
Chepelenko, V. N. .
RUSSIAN METALLURGY, 2020, 2020 (09) :987-998
[46]   Grain boundary strengthening in nanocrystalline Mo0.2CoNi medium-entropy alloys produced via high-pressure torsion [J].
Han, Juyeon ;
Nam, Seungjin ;
Choi, Yeon Taek ;
Jang, Tae Jin ;
Jung, Chahee ;
Sohn, Seok Su ;
Kim, Hyoung Seop ;
Choi, Hyunjoo .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2024, 119
[47]   Effect of Mg-rich filler metal on weld zone properties in pulsed laser-welded ultra-fine grain AA6061: A Taguchi optimization study [J].
Karami, S. ;
Siadati, M. H. ;
Yousefieh, M. .
JOURNAL OF ADVANCED JOINING PROCESSES, 2025, 12
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Nokhrin, Aleksey V. ;
Nagicheva, Galina S. ;
Chuvil'deev, Vladimir N. ;
Kopylov, Vladimir I. ;
Bobrov, Aleksandr A. ;
Tabachkova, Nataliya Yu. .
MATERIALS, 2023, 16 (05)
[49]   Study of Structure and Mechanical Properties of Fine-Grained Aluminum Alloys Al-0.6wt.%Mg-Zr-Sc with Ratio Zr:Sc=1.5 Obtained by Cold Drawing [J].
Nokhrin, Aleksey ;
Shadrina, Iana ;
Chuvil'deev, Vladimir ;
Kopylov, Vladimir .
MATERIALS, 2019, 12 (02)
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