Multiple strengthening mechanisms in high strength ultrafine-grained Al-Mg alloys

被引：29

作者：

Wang, Hao ^{[1
]}

Geng, Hongwei ^{[1
]}

Zhou, Dengshan ^{[1
,2
,3
]}

Niitsu, Kodai ^{[2
]}

Muransky, Ondrej ^{[4
,5
]}

Zhang, Deliang ^{[1
]}

机构：

[1] Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China

[2] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan

[3] Kyoto Univ, Ctr Elements Strategy Initiat Struct Mat ESISM, Sakyo Ku, Kyoto 6068501, Japan

[4] ANSTO, Sydney, NSW 2234, Australia

[5] UNSW, Sch Mech & Mfg Engn, Sydney, NSW 2052, Australia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2020年 / 771卷

关键词：

Ultrafine-grained Al-Mg alloys; Strengthening mechanisms; Stacking faults; Nanodispersoids; FAULT ENERGY; SIZE; MICROSTRUCTURE; DEFORMATION; BEHAVIOR;

D O I：

10.1016/j.msea.2019.138613

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

High strength has always been pursued in binary Al-Mg and 5xxx series Al alloys. However, these alloys usually provide medium strength due to lack of multiple strengthening methods. Here, this study reports on multiple strengthening effects existing in a binary ultrafine-grained (UFG) Al-7.5at.%Mg alloy prepared by mechanical alloying and hot extrusion. Different strengthening mechanisms, in particular, dispersoid strengthening and stacking fault strengthening, are analyzed and evaluated in terms of their respective contribution to the 511 MPa yield strength of the alloy. The strengthening analysis proves that the concurrent generation of nanoscale dispersoids and stacking faults (SPs) can be used as a new microstructural design in developing novel Al-Mg-based alloys with higher strength and enhanced ductility.

引用

页数：6

共 50 条

[1] Diffusion in ultrafine-grained Al-Mg alloys
Fujita, T
Hasegawa, H
Horita, Z
Langdon, TG
[J]. DIFFUSIONS IN MATERIALS: DIMAT2000, PTS 1 & 2, 2001, 194-1 : 1205 - 1210
[2] Localized corrosion of ultrafine-grained Al-Mg model alloys
Brunner, J. G.
May, J.
Hoeppel, H. W.
Goeken, M.
Virtanen, S.
[J]. ELECTROCHIMICA ACTA, 2010, 55 (06) : 1966 - 1970
[3] A new insight into ductile fracture of ultrafine-grained Al-Mg alloys
Hailiang Yu
A. Kiet Tieu
Cheng Lu
Xiong Liu
Mao Liu
Ajit Godbole
Charlie Kong
Qinghua Qin
[J]. Scientific Reports, 5
[4] A new insight into ductile fracture of ultrafine-grained Al-Mg alloys
Yu, Hailiang
Tieu, A. Kiet
Lu, Cheng
Liu, Xiong
Liu, Mao
Godbole, Ajit
Kong, Charlie
Qin, Qinghua
[J]. SCIENTIFIC REPORTS, 2015, 5
[5] Annealing-induced strengthening and stabilization in ultrafine-grained Al and Al-Mg alloys prepared by rapid powder consolidation
Zhou, Dengshan
Bu, Yifan
Muransky, Ondrej
Geng, Hongwei
Sun, Binhan
Yang, Chao
Zhang, Deliang
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2022, 833
[6] On the cyclic deformation response of ultrafine-grained Al-Mg alloys at elevated temperatures
Canadinc, D.
Maier, H. J.
Gabor, P.
May, J.
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 496 (1-2): : 114 - 120
[7] Effects of Mg on strengthening mechanisms in ultrafine-grained Al-Mg-Zr alloy
Orlova, T. S.
Latynina, T. A.
Murashkin, M. Y.
Chabanais, F.
Rigutti, L.
Lefebvre, W.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2021, 859
[8] High-Strength State and Strengthening Mechanisms of Ultrafine-Grained Titanium
E. I. Usmanov
L. R. Rezyapova
R. Z. Valiev
[J]. Physical Mesomechanics, 2023, 26 : 483 - 494
[9] High-Strength State and Strengthening Mechanisms of Ultrafine-Grained Titanium
Usmanov, E. I.
Rezyapova, L. R.
Valiev, R. Z.
[J]. PHYSICAL MESOMECHANICS, 2023, 26 (05) : 483 - 494
[10] Mg segregations at and near deformation-distorted grain boundaries in ultrafine-grained Al-Mg alloys
Ovid'ko, I. A.
Sheinerman, A. G.
Valiev, R. Z.
[J]. JOURNAL OF MATERIALS SCIENCE, 2014, 49 (19) : 6682 - 6688

← 1 2 3 4 5 →