THRESHOLD STRESS FOR THE HIGH-TEMPERATURE DEFORMATION OF AL-MG-MN ALLOYS

被引：10

作者：

NAKASHIMA, H ^{[1
]}

FUKUSHIMA, H ^{[1
]}

GOTO, S ^{[1
]}

YOSHINAGA, H ^{[1
]}

机构：

[1] KYUSHU UNIV,KASUGA,FUKUOKA 816,JAPAN

来源：

MATERIALS TRANSACTIONS JIM | 1990年 / 31卷 / 04期

关键词：

aluminum-magnesium-manganese alloy; attractive interaction; dispersion hardening; high-temperature deformation; Orowan stress; solution hardening; threshold stress; void hardening;

D O I：

10.2320/matertrans1989.31.276

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to clarify the yielding mechanism and the character of threshold stress for high temperature deformation of dispersion strengthened alloys, three kinds of Al-Mg-Mn alloys with different dispersion parameters were prepared. Their deformation behavior and threshold stresses were analysed by means of tensile and stress relaxation tests during the steady state deformation at strain rates from 3 × 10-5 s-1 to 3 × 10-3 s-1 at 673 K. Their threshold stresses were very close to the calculated Orowan stresses. The dependence of the threshold stress on the interparticle spacing was quite similar to the dependence of the Orowan stress. However, from the analysis of their deformation behavior and microstructure after deformation, it is found that the threshold stress is not determined by the Orowan mechanism but determined by the attractive interaction of dislocations with dispersed particles. © 1990, The Japan Institute of Metals. All rights reserved.

引用

页码：276 / 283

页数：8

共 50 条

[41] Investigations of the nature of non-metallic inclusions in Al-Mg-Mn alloys
1600, Politechnica University of Bucharest (75):
[42] Effect of Magnesium on Strain Hardening Response of Al-Mg-Mn Based Alloys
Goel, Rajat
Upadhyay, Mahesh
Maulik, Ornov
Prasad, Y. V. S. S.
Kumar, Vinod
INTERNATIONAL CONFERENCE ON ADVANCES IN MANUFACTURING AND MATERIALS ENGINEERING (ICAMME 2014), 2014, 5 : 1241 - 1247
[43] Effects of alloy modification and thermomechanical processing on recrystallization of Al-Mg-Mn alloys
Kannan, K
Vetrano, JS
Hamilton, CH
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (10): : 2947 - 2957
[44] Effects of alloy modification and thermomechanical processing on recrystallization of Al-Mg-Mn alloys
Kannan, K.
Vetrano, J.S.
Hamilton, C.H.
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 1996, 27 A (10): : 2947 - 2957
[45] HIGH-TEMPERATURE EMBRITTLEMENT IN SUPERSATURATED AL-MN ALLOYS
BARRENO, J
GARCIACORDOVILLA, C
LOUIS, E
SCRIPTA METALLURGICA, 1985, 19 (09): : 1113 - 1116
[46] HIGH-TEMPERATURE DEFORMATION OF NB3AL ALLOYS
HANADA, S
MURAYAMA, Y
ABE, Y
INTERMETALLICS, 1994, 2 (03) : 155 - 165
[47] INFLUENCE OF IRON AND SILICON ON TOUGHNESS AND FRACTURE CHARACTERISTICS OF AL-MG-MN AND AL-ZN-MG ALLOYS
FUKUI, T
TRANSACTIONS OF THE JAPAN INSTITUTE OF METALS, 1974, 15 (01): : 1 - 10
[48] Strengthening die-cast Al-Mg and Al-Mg-Mn alloys with Fe as a beneficial element
Zhu, Xiangzhen
Blake, Paul
Dou, Kun
Ji, Shouxun
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 732 : 240 - 250
[49] THRESHOLD STRESS AND ITS TEMPERATURE-DEPENDENCE FOR HIGH-TEMPERATURE DEFORMATION OF A PRECIPITATION-HARDENED AL-0.7 AT-PERCENT-MN ALLOY
YOSHIDA, F
SUGAMOTO, J
NAKASHIMA, H
YOSHINAGA, H
JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1995, 59 (01) : 1 - 7
[50] High-temperature deformation properties of austenitic Fe-Mn alloys
Cabanas, N.
Akdut, N.
Penning, J.
De Cooman, B. C.
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2006, 37A (11): : 3305 - 3315

← 1 2 3 4 5 →