Investigation of tension-compression asymmetry of magnesium by use of the acoustic emission technique

被引：52
|
作者：
Mathis, Kristian [1 ]
Capek, Jan [1 ]
Zdrazilova, Zuzana [1 ]
Trojanova, Zuzanka [1 ]
机构：
[1] Charles Univ Prague, Fac Math & Phys, Dept Phys Mat, Prague, Czech Republic
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2011年 / 528卷 / 18期
关键词：
Mechanical characterization; Magnesium alloys; Twinning; Dislocations; NONBASAL SLIP; ALLOY AZ31B; DEFORMATION; DISLOCATIONS; TEMPERATURE; EVOLUTION; CRYSTALS; METALS;
D O I：
10.1016/j.msea.2011.03.114
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The acoustic emission (AE) technique has been applied to in situ investigations of deformation processes of polycrystalline magnesium with various grain sizes in tension and compression from 20 to 300 degrees C. The AE signal of twin nucleation exhibited an asymmetry corresponding to the tension-compression flow stress asymmetry due to easier {10 (1) over bar2} twinning in compression. A maximum in the AE signal is observed at 200 degrees C and is interpreted as a consequence of the synergetic effect of twinning and greater slip activity at higher temperatures. A larger grain size (600 mu m) facilitated twinning. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：5904 / 5907
页数：4
相关论文
共 50 条
  • [41] TENSION-COMPRESSION ASYMMETRY OF SOLID, SHAPE RECOVERED "BULK" NITINOL
    Fonte, Matthew
    Saigal, Anil
    IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, VOL 14, 2010, : 227 - 234
  • [42] Tension-compression asymmetry and size effects in nanocrystalline Ni nanowires
    Monk, J.
    Farkas, D.
    PHILOSOPHICAL MAGAZINE, 2007, 87 (14-15) : 2233 - 2244
  • [43] Texture induced tension-compression asymmetry of drawn tungsten wires
    Ripoll, Manel Rodriguez
    Reisacher, Eduard
    Riedel, Hermann
    COMPUTATIONAL MATERIALS SCIENCE, 2009, 45 (03) : 788 - 792
  • [44] Tension-compression asymmetry modelling: strategies for anisotropy parameters identification
    Barros, Pedro
    Alves, Jose Luis
    Oliveira, Marta
    Menezes, Luis Filipe
    NUMIFORM 2016: THE 12TH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN INDUSTRIAL FORMING PROCESSES, 2016, 80
  • [45] STRESS RELAXATION IN A BENDED VISCOELASTIC PLATE WITH TENSION-COMPRESSION ASYMMETRY
    Sevastyanov, G. M.
    Bormotin, K. S.
    JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS, 2023, 64 (04) : 686 - 692
  • [46] On Stress Relaxation in Bended Viscoelastic Plate with Tension-Compression Asymmetry
    Sevastyanov, G. M.
    MECHANICS OF SOLIDS, 2023, 58 (08) : 2920 - 2932
  • [47] Molecular dynamics simulations of tension-compression asymmetry in nanocrystalline copper
    Zhou, Kai
    Shao, Shaofeng
    Yao, Yijun
    PHYSICS LETTERS A, 2017, 381 (13) : 1163 - 1168
  • [48] Numerical analysis of damage evolution for materials with tension-compression asymmetry
    Wu, Shenghua
    Song, Nannan
    Pires, F. M. Andrade
    XV PORTUGUESE CONFERENCE ON FRACTURE, PCF 2016, 2016, 1 : 273 - 280
  • [49] On tension-compression asymmetry in ultrafine-grained and nanocrystalline metals
    Guerses, Ercan
    El Sayed, Tamer
    COMPUTATIONAL MATERIALS SCIENCE, 2010, 50 (02) : 639 - 644
  • [50] TENSION-COMPRESSION ASYMMETRY OF SOLID, SHAPE RECOVERED "BULK" NITINOL
    Fonte, Matthew
    Saigal, Anil
    IMECE2009: PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, VOL 14, 2010, : 225 - 226
12345