INVESTIGATION OF PORTEVIN-LE CHATELIER EFFECT IN COARSE-GRAINED Al-Mg ALLOYS

被引：0

作者：

Mogucheva, Anna ^{[1
]}

Yuzbekova, Diana ^{[1
]}

机构：

[1] Belgorod State Univ, Lab Mech Properties Nanostruct Mat & Superalloys, Belgorod, Russia

来源：

27TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2018) | 2018年

基金：

俄罗斯科学基金会;

关键词：

Aluminum alloys; mechanical testing; microstructure; Portevin-Le Chatelier effect;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The behavior of deformation bands associated with the Portevin-Le Chatelier (PLC) effect was studied in an Al-Mg alloy. The microstructure of the alloy consisted of coarse grains with approximately equiaxed shape and average size of 40 mu m. A series of tensile tests was carried out at room temperature and initial strain rates of 1 x10(-3) s(-1) and 5x10(-3) s(-1). Comparing different propagation characteristics of the PLC bands (the velocity of the PLC band propagation, the local strain rate within the band, the band width, and the angle of band) for the model coarse-grained alloy reveals numerous unusual features of spatiotemporal behavior observed at various stages of strain hardening the alloy. The specific mechanisms of plastic deformation at various stages of strain hardening are considered in some detail.

引用

页码：1631 / 1634

页数：4

共 50 条

[31] Molecular Dynamics Simulation of Portevin-Le Chatelier Effect in Al-Mg Alloys: Effects of Solute Concentration, Temperature, and Tensile Rate
Luo, Junting
Xue, Hao
Chu, Ruihua
Zhang, Chunxiang
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2023, 32 (21) : 9884 - 9891
[32] The anisotropy of the Portevin-Le Chatelier effect in aluminum alloys
Cheng, XM
Morris, JG
SCRIPTA MATERIALIA, 2000, 43 (07) : 651 - 658
[33] MODEL FOR PORTEVIN-LE CHATELIER EFFECT IN SUBSTITUTIONAL ALLOYS
MCCORMICK, PG
ACTA METALLURGICA, 1972, 20 (03): : 351 - +
[34] Enhanced ductility in coarse-grained Al-Mg alloys
Taleff, EM
Lesuer, DR
Wadsworth, J
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (02): : 343 - 352
[35] Enhanced ductility in coarse-grained Al-Mg alloys
Univ of Texas at Austin, Austin, United States
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 1996, 27 A (02): : 343 - 352
[36] The electric current-induced suppression of the Portevin - Le Chatelier effect in Al-Mg alloys
Shibkov, A. A.
Denisov, A. A.
Zheltov, M. A.
Zolotov, A. E.
Gasanov, M. F.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 610 : 338 - 343
[37] Macroscopic consequences of Piobert-Luders and Portevin-Le Chatelier bands during tensile deformation in Al-Mg alloys
Reyne, Baptiste
Manach, Pierre-Yves
Moes, Nicolas
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 746 : 187 - 196
[38] Experimental study of the Portevin-Le Chatelier effect under complex loading of Al-Mg alloy: procedure issues
V. Tretyakova, Tatyana
Tretyakov, Mikhail P.
Chechulina, Evgeniia A.
FRATTURA ED INTEGRITA STRUTTURALE-FRACTURE AND STRUCTURAL INTEGRITY, 2021, 15 (58): : 434 - 441
[39] INVERSE PORTEVIN-LE CHATELIER EFFECT IN AN AL-MG-SI ALLOY
MCCORMICK, PG
SCRIPTA METALLURGICA, 1972, 6 (02): : 165 - +
[40] A novel method simultaneously eliminating Portevin-Le Chatelier effect and enhancing strength in non-heat-treatable Al-Mg alloys
Zhang, Yong
Jiang, Lu
Chen, Han
Li, Hao
Kan, Lequn
Zhu, Yuman
Sun, Wenwen
SCRIPTA MATERIALIA, 2025, 254

← 1 2 3 4 5 →