Investigation of PLC band nucleation in AA5754

被引：24
作者：
Feng, X. [2 ]
Fischer, G. [1 ]
Zielke, R. [2 ]
Svendsen, B. [3 ]
Tillmann, W. [2 ]
机构：
[1] RIF EV, D-44227 Dortmund, Germany
[2] Tech Univ Dortmund, Fak Maschinenbau, Lehrstuhl Werkstofftechnol, D-44221 Dortmund, Germany
[3] Tech Univ Dortmund, Fak Maschinenbau, Lehrstuhl Mech, D-44221 Dortmund, Germany
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2012年 / 539卷
关键词：
Portevin-Le Chatelier (PLC) effect; Dynamic strain aging (DSA); Thermography; LE-CHATELIER BANDS; PORTEVIN-LECHATELIER DEFORMATION; CU-15 AT.PERCENT AL; STRIP CAST AA5754; PLASTIC INSTABILITIES; MG ALLOY; STRAIN-RATE; JERKY FLOW; POLYCRYSTALS; PROPAGATION;
D O I：
10.1016/j.msea.2012.01.082
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The purpose of the present work is the experimental investigation of the nucleation of PLC deformation bands in the aluminium alloy AA5754. The PLC bands are investigated using both mechanical methods and infrared (IR) thermography. The latter employs a high-speed IR camera which captures local changes of radiated power resulting from mechanical dissipation and heating due to the nucleation of PLC bands. The resulting IR images are used to determine spatio-temporal power field variations via image subtraction. Furthermore, band trajectories obtained from the IR images are used to study possible correlations between the spatio-temporal evolution of stress and radiated power in the specimens and PLC band development. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：205 / 210
页数：6
相关论文
共 35 条
  • [1] The dynamics of Portevin-Le Chatelier bands in an Al-Mg alloy from infrared thermography
    Ait-Amokhtar, H.
    Fressengeas, C.
    Boudrahem, S.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 488 (1-2): : 540 - 546
  • [2] Kinematics fields and spatial activity of Portevin-Le Chatelier bands using the digital image correlation method
    Ait-Amokhtar, H.
    Vacher, P.
    Boudrahem, S.
    [J]. ACTA MATERIALIA, 2006, 54 (16) : 4365 - 4371
  • [3] PORTEVIN-LE CHATELIER INSTABILITIES IN AL-3 MG CONDITIONED BY STRAIN-RATE AND STRAIN
    BALIK, J
    LUKAC, P
    [J]. ACTA METALLURGICA ET MATERIALIA, 1993, 41 (05): : 1447 - 1454
  • [4] Inverse critical strains for jerky flow in Al-Mg alloys
    Balík, J
    Lukác, P
    Kubin, LP
    [J]. SCRIPTA MATERIALIA, 2000, 42 (05) : 465 - 471
  • [5] An experimental and numerical investigation of the behaviour of AA5083 aluminium alloy in presence of the Portevin-Le Chatelier effect
    Benallal, A.
    Berstad, T.
    Borvik, T.
    Hopperstad, O. S.
    Koutiri, I.
    de Codes, R. Nogueira
    [J]. INTERNATIONAL JOURNAL OF PLASTICITY, 2008, 24 (10) : 1916 - 1945
  • [6] On nucleation and propagation of PLC bands in an Al-3Mg alloy
    Casarotto, L.
    Dierke, H.
    Tutsch, R.
    Neuhaeuser, H.
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 527 (1-2): : 132 - 140
  • [7] Time distribution of stress drops, critical strain and crossover in the dynamics of jerky flow
    Chihab, K
    Fresssengeas, C
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 356 (1-2): : 102 - 107
  • [8] The kinetics of the Portevin-Le Chatelier bands in an Al-5at%Mg alloy
    CHIHAB, K
    ESTRIN, Y
    KUBIN, LP
    VERGNOL, J
    [J]. SCRIPTA METALLURGICA, 1987, 21 (02): : 203 - 208
  • [9] Investigating the Portevin-Le Chatelier effect by the acoustic emission and laser extensometry techniques
    Chmelík, F
    Ziegenbein, A
    Neuhäuser, H
    Lukác, P
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 324 (1-2): : 200 - 207
  • [10] Cottrell A.H., 1948, C STRENGTH SOL PHYS, P30
1234