Monitoring of Self-Annealing in Ultrafine-Grained Silver Using Nanoindentation

被引：7
|
作者：
Gubicza, Jeno [1 ]
Chinh, Nguyen Q. [1 ]
Langdon, Terence G. [2 ,3 ,4 ]
机构：
[1] Eotvos Lorand Univ, Dept Mat Phys, H-1117 Budapest, Hungary
[2] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
[3] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
[4] Univ Southampton, Sch Engn Sci, Mat Res Grp, Southampton SO17 1BJ, Hants, England
来源：
NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2010年 / 2卷 / 04期
基金：
匈牙利科学研究基金会;
关键词：
Severe Plastic Deformation; Equal-Channel Angular Pressing; Ultrafine-Grained Materials; Recovery; Recrystallization; Nanoindentation; PLASTIC-DEFORMATION; MICROSTRUCTURE; METALS; RECRYSTALLIZATION; CRYSTALS; TEXTURE; MODEL; CU;
D O I：
10.1166/nnl.2010.1096
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The self-annealing of an ultrafine-grained (UFG) microstructure in pure silver produced by severe plastic deformation (SPD) was studied by nanoindentation and X-ray line profile analysis. Both recovery and recrystallization of the UFG structure take place during long-term storage at room temperature as a result of the extremely high dislocation density which acts as a driving force in self-annealing. Nanohardness mapping revealed that self-annealing occurred inhomogeneously, and the higher strain imposed in SPD processing leads to faster recrystallization in severely deformed silver. This behavior of self-annealing can be explained by the enhanced contribution of twinning which facilitates the formation of recrystallized embryos.
引用
收藏
页码：294 / 297
页数：4
相关论文
共 50 条
  • [21] Nanoindentation creep of ultrafine-grained Al2O3 particle reinforced copper composites
    Song, Min
    Liu, Yong
    He, Xiaoyu
    Bei, Hongbin
    Hu, Weiping
    Liu, Feng
    Li, Zhou
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 560 : 80 - 85
  • [22] The effect of Nb on texture evolutions of the ultrafine-grained dual-phase steels fabricated by cold rolling and intercritical annealing
    Kalashami, A. Ghatei
    Kermanpur, A.
    Ghassemali, E.
    Najafizadeh, A.
    Mazaheri, Y.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 694 : 1026 - 1035
  • [23] Nanoindentation creep behavior of coarse-grained and ultrafine-grained pure magnesium and AZ31 alloy
    Hu, Jiangjiang
    Zhang, Wei
    Bi, Guangli
    Lu, Jinwen
    Huo, Wangtu
    Zhang, Yusheng
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 698 : 348 - 355
  • [24] Strain rate sensitivity studies in an ultrafine-grained Al-30 wt.% Zn alloy using micro- and nanoindentation
    Chinh, Nguyen Q.
    Csanadi, Tamas
    Gyori, Tivadar
    Valiev, Ruslan Z.
    Straumal, Boris B.
    Kawasaki, Megumi
    Langdon, Terence G.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 543 : 117 - 120
  • [25] Annealing-Induced Hardening in Ultrafine-Grained Ni-Mo Alloys
    Gubicza, Jeno
    Pereira, Pedro Henrique R.
    Kapoor, Garima
    Huang, Yi
    Vadlamani, Subramanya Sarma
    Langdon, Terence G.
    ADVANCED ENGINEERING MATERIALS, 2018, 20 (09)
  • [26] Annealing effects on the corrosion resistance of ultrafine-grained pure titanium
    Kim, H. S.
    Kim, W. J.
    CORROSION SCIENCE, 2014, 89 : 331 - 337
  • [27] The Recrystallization Behavior in Ultrafine-Grained Structure Steel Fabricated by Cold Rolling and Annealing
    Qing Yuan
    Guang Xu
    Jun-yu Tian
    Wei-cheng Liang
    Arabian Journal for Science and Engineering, 2017, 42 : 4771 - 4777
  • [28] Effects of annealing temperature on nano/ultrafine-grained structure in austenite stainless steel
    Gong, Na
    Wu, Hui-bin
    Niu, Gang
    Zhang, Da
    MATERIALS SCIENCE AND TECHNOLOGY, 2017, 33 (14) : 1667 - 1672
  • [29] Annealing-Induced Hardening in Ultrafine-Grained and Nanocrystalline Materials
    Gubicza, Jeno
    ADVANCED ENGINEERING MATERIALS, 2020, 22 (01)
  • [30] The Annealing Effect on Scratch Testing Behavior of Ultrafine-Grained Brass
    Tarasov, S. Yu.
    Filippov, A. V.
    Fortuna, S. V.
    Vorontsov, A. V.
    PROCEEDINGS OF THE ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES, 2018, 2051
12345