Temperature and strain-rate dependence of elongation in Al-4.5Mg alloy

被引：0
|
作者：
Iwasaki, H
Mori, T
Mabuchi, M
Tagata, T
Higashi, K
机构：
[1] Himeji Inst Technol, Coll Engn, Dept Mat Sci & Engn, Himeji, Hyogo 6712201, Japan
[2] Natl Ind Res Inst Nagoya, Kita Ku, Nagoya, Aichi 4628510, Japan
[3] Sky Aluminium Co Ltd, Saitama 3660801, Japan
[4] Univ Osaka Prefecture, Coll Engn, Dept Met & Mat Sci, Osaka 5998531, Japan
来源：
SUPERPLASTICITY IN ADVANCED MATERIALS, ICSAM-2000 | 2001年 / 357-3卷
关键词：
Al-Mg alloy; cavitation; elongation; grain boundary sliding; strain rate sensitivity;
D O I：
10.4028/www.scientific.net/MSF.357-359.153
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of temperature and strain rate on elongation of Al - 4.5 Mg alloy were investigated at 10(-4) similar to 10(-2) s(-1) and at 573 similar to 773 K. The elongation depended on the temperature and strain rate even in the solute-drag creep region; as a result, a large elongation of 352 % was attained at 653 K and at 10(-4) s(-1). Necking was developed due to a decrease in plastic stability arising from the low strain rate sensitivity. Also, significant cavitation was caused due to grain boundary sliding. The development of necking and cavitation is responsible for the temperature and strain rate dependence of elongation.
引用
收藏
页码：153 / 158
页数：6
相关论文
共 50 条
  • [1] Effects of temperature and strain rate on elongation at elevated temperature in Al-4.5Mg alloy
    Iwasaki, H
    Kariya, R
    Mabuchi, M
    Tagata, T
    Higashi, K
    MATERIALS TRANSACTIONS, 2001, 42 (08) : 1771 - 1776
  • [2] THE EFFECT OF TEMPERATURE ON STRAIN-RATE SENSITIVITY IN AN AL-MG-SI ALLOY
    LING, CP
    MCCORMICK, PG
    ACTA METALLURGICA ET MATERIALIA, 1993, 41 (11): : 3127 - 3131
  • [3] Cavitation behavior of coarse-grained Al-4.5Mg alloy exhibiting superplastic-like elongation
    Iwasaki, H
    Mori, T
    Hosokawa, H
    Tagata, T
    Mabuchi, M
    Higashi, K
    SUPERPLASTICITY-CURRENT STATUS AND FUTURE POTENTIAL, 2000, 601 : 67 - 72
  • [4] The effect of temperature on strain-rate sensitivity in high strength Al-Mg alloy sheet
    Romhanji, E
    Dudukovska, A
    Glisic, D
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2002, 125 : 193 - 198
  • [5] Development of deformation and recrystallization orientations during hot rolling of Al-4.5Mg alloy
    Ren, B.
    Cassada, W.A.
    Wade, K.D.
    Materials Science Forum, 2000, 331
  • [6] Temperature and strain rate dependence of the dynamic strain aging effect in an Al-Zn-Mg alloy
    Hörnqvist, M
    Karlsson, B
    MATERIALS SCIENCE AND TECHNOLOGY, 2006, 22 (02) : 213 - 222
  • [7] Development of deformation and recrystallization orientations during hot rolling of Al-4.5Mg alloy
    Ren, B
    Cassada, WA
    Wade, KD
    ALUMINIUM ALLOYS: THEIR PHYSICAL AND MECHANICAL PROPERTIES, PTS 1-3, 2000, 331-3 : 769 - 774
  • [8] Strain-rate sensitivity and microstructural evolution in a Mg-Al-Zn alloy
    Korla, Rajesh
    Chokshi, Atul H.
    SCRIPTA MATERIALIA, 2010, 63 (09) : 913 - 916
  • [9] Synthesis and characterization of mechanically alloyed cerium oxide reinforced Al-4.5Mg alloy composite
    Rastgarnia, Sara
    Ranjbar, Khalil
    Gheisari, Khalil O.
    Borhani, Gholam H.
    INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2017, 108 (12) : 1081 - 1089
  • [10] TEMPERATURE AND STRAIN-RATE DEPENDENCE OF THE PORTEVIN-LE CHATELIER EFFECT IN A RAPIDLY SOLIDIFIED AL-ALLOY
    LI, DM
    BAKKER, A
    METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1995, 26 (11): : 2873 - 2879
12345