A COMPARISON OF DISLOCATION MICROSTRUCTURES FORMED DURING SEVERE PLASTIC DEFORMATION OF AN Al-2.5 Mg ALLOY AT ROOM AND CRYOGENIC TEMPERATURES AND THEIR EFFECT ON ALLOY'S ROOM-TEMPERATURE STRENGTH

被引：0
|
作者：
Singh, Jung B. [1 ]
Sarkar, A. [1 ]
Sharma, G. [1 ]
Chakravartty, J. K. [1 ]
机构：
[1] Bhabha Atom Res Ctr, Mech Met Div, Bombay 400085, Maharashtra, India
来源：
TMS 2012 141ST ANNUAL MEETING & EXHIBITION - SUPPLEMENTAL PROCEEDINGS, VOL 2: MATERIALS PROPERTIES, CHARACTERIZATION, AND MODELING | 2012年
关键词：
ECAP microstructure; Cryogenic temperature; Dislocation substructure; Yield strength;
D O I：
暂无
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work reports a comparison of dislocation microstructures that formed in ultra-fine grains of a commercial Al-2.5 Mg alloy produced by equal channel angle pressing at room and cryogenic temperatures. Though the room-and cryogenic-temperatures pressing of the alloy produced ultra-fine grains of similar grain sizes for the same amount of equivalent strain, there was a significant difference in their respective room-temperature compression strengths. This observed difference in the room-temperature strengths corresponding to two microstructures has been attributed to differences in their dislocation substructures.
引用
收藏
页码：805 / 811
页数：7
相关论文
共 49 条
  • [31] Effect of grain size on the activation energy for plastic deformation near room temperature in a Zn–28.7 pct Al–1.9 pct Cu alloy
    J. D. Muñoz-Andrade
    A. Mendoza-Allende
    E. Cabrera
    G. Torres-Villaseñor
    J. A. Montemayor-Aldrete
    Journal of Materials Science, 2007, 42 : 7617 - 7620
  • [32] Regions of the Portevin-Le Chatelier effect existing under the conditions of continuous room-temperature indentation of an Al-2.7% Mg alloy
    Golovin, YI
    Ivolgin, VI
    Lebedkin, MA
    Sergunin, DA
    PHYSICS OF THE SOLID STATE, 2004, 46 (09) : 1671 - 1673
  • [33] Regions of the portevin-Le chatelier effect existing under the conditions of continuous room-temperature indentation of an Al-2.7% Mg alloy
    Yu. I. Golovin
    V. I. Ivolgin
    M. A. Lebedkin
    D. A. Sergunin
    Physics of the Solid State, 2004, 46 : 1671 - 1673
  • [34] Effect of Room-Temperature Pre-rolling and Pre-cryorolling on Natural Aging and Bake Hardening Response of an Al–Mg–Si Alloy
    Jianrui Xing
    Gang Lei
    Yafei Wang
    Laxman Bhatta
    Charlie Kong
    Hailiang Yu
    Metallurgical and Materials Transactions A, 2023, 54 : 3709 - 3732
  • [35] Effect of Recrystallization Annealing Temperatures on Microstructures and Mechanical Properties of Severe Plastic Thermo-Deformation Processed Ti-6Al-4V Alloy
    Sun, Hao
    Liang, Yilong
    Zhang, Xiongfei
    Li, Wei
    Yang, Ming
    Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering, 2019, 48 (09): : 3015 - 3021
  • [36] Effect of cumulative strain on the microstructural and mechanical properties of Zn-0.02 wt%Mg alloy wires during room-temperature drawing process
    Wang, Liqing
    He, Yufeng
    Zhao, Hong
    Xie, Hongbo
    Li, Song
    Ren, Yuping
    Qin, Gaowu
    JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 740 : 949 - 957
  • [37] Effect of cumulative strain on the microstructural and mechanical properties of Zn-0.02 wt%Mg alloy wires during room-temperature drawing process
    Ren, Yuping (renyp@atm.neu.edu.cn), 1600, Elsevier Ltd (740):
  • [38] Effect of Room-Temperature Pre-rolling and Pre-cryorolling on Natural Aging and Bake Hardening Response of an Al-Mg-Si Alloy
    Xing, Jianrui
    Lei, Gang
    Wang, Yafei
    Bhatta, Laxman
    Kong, Charlie
    Yu, Hailiang
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2023, 54 (10): : 3709 - 3732
  • [39] Improvement of strength and ductility synergy in a room-temperature stretch-formable Mg-Al-Mn alloy sheet by twin-roll casting and low-temperature annealing
    Nakata, T.
    Xu, C.
    Kaibe, K.
    Yoshida, Y.
    Yoshida, K.
    Kamado, S.
    JOURNAL OF MAGNESIUM AND ALLOYS, 2022, 10 (04) : 1066 - 1074
  • [40] Improvement of strength and ductility synergy in a room-temperature stretch-formable Mg-Al-Mn alloy sheet by twin-roll casting and low-temperature annealing
    T.Nakata
    C.Xu
    K.Kaibe
    Y.Yoshida
    K.Yoshida
    S.Kamado
    Journal of Magnesium and Alloys, 2022, 10 (04) : 1066 - 1074
12345