The effects of ultrasonic vibration on Portevin-Le Chatelier (PLC) effect and stress-strain behavior in aluminum alloy 2024

被引：21

作者：

Kang, Jiarui ^{[1
]}

Liu, Xun ^{[1
]}

Wang, Tianzhao ^{[1
]}

机构：

[1] Ohio State Univ, Dept Mat Sci & Engn, Welding Engn, 1248 Arthur E Adams Dr, Columbus, OH 43221 USA

来源：

SCRIPTA MATERIALIA | 2023年 / 224卷

基金：

美国国家科学基金会;

关键词：

Aluminum alloy; Portevin -Le Chatelier effect; Digital image correlation; Ultrasonic softening; Dynamic strain aging; PLASTIC-FLOW PROCESSES; ACOUSTIC-EMISSION; JERKY FLOW; INSTABILITIES; DEFORMATION; SIMILARITY; SMOOTH; BANDS;

D O I：

10.1016/j.scriptamat.2022.115121

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of ultrasonic vibration on the stress-strain behavior and the Portevin-Le Chatelier (PLC) effect in aluminum alloy 2024 O temper and T4 were investigated based on ultrasonically assisted micro-tensile tests. Flow stress in both heat treatments was found to be decreasing when ultrasonic vibration is applied. A higher percentage of stress reduction and the residual softening effect was observed in O temper. High-speed digital image correlation reveals the enhanced PLC bands in both heat treatments. While no PLC band was observed in T4 originally, clear PLC bands appear with applied ultrasound. Spatio-temporal analysis revealed that in both O temper and T4 conditions, the critical strain of the PLC effect decreases under ultrasonic vibration. In addition, a higher strain rate magnitude was observed in conditions with ultrasonic vibration.

引用

页数：5

共 35 条

[1] Kinematics fields and spatial activity of Portevin-Le Chatelier bands using the digital image correlation method [J].

Ait-Amokhtar, H. ;

Vacher, P. ;

Boudrahem, S. .

ACTA MATERIALIA, 2006, 54 (16) :4365-4371

[2]

AMS D Nonferrous Alloys. Committee, 2016, HEAT TREATM AL ALL R

[3] The intermittency of plasticity in an Al3% Mg alloy [J].

Bougherira, Y. ;

Entemeyer, D. ;

Fressengeas, C. ;

Kobelev, N. P. ;

Lebedkina, T. A. ;

Lebyodkin, M. A. .

15TH INTERNATIONAL CONFERENCE ON THE STRENGTH OF MATERIALS (ICSMA-15), 2010, 240

[4] Coupling of ultrasounds with the Portevin-Le Chatelier serrations as observed in aluminium-magnesium alloy in mini-samples tensile tests [J].

Brynk, Tomasz ;

Kurzydlowski, KrzysztofJ .

SCRIPTA MATERIALIA, 2020, 174 :14-18

[5] Influence of ultrasonic vibration on micro-extrusion [J].

Bunget, Cristina ;

Ngaile, Gracious .

ULTRASONICS, 2011, 51 (05) :606-616

[6] Portevin-Le Chatelier effect in Al-Zn-Mg-Cu-Zr aluminum alloy [J].

Chen Jun-zhou ;

Zhen Liang ;

Fan Li-wei ;

Yang Shou-jie ;

Dai Sheng-long ;

Shao Wen-zhu .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2009, 19 (05) :1071-1075

[7] Applying ultrasonic vibration during single-point and two-point incremental sheet forming [J].

Cheng, Randy ;

Wiley, Nicholas ;

Short, Matt ;

Liu, Xun ;

Taub, Alan .

47TH SME NORTH AMERICAN MANUFACTURING RESEARCH CONFERENCE (NAMRC 47), 2019, 34 :186-192

[8] Investigating the Portevin-Le Chatelier effect by the acoustic emission and laser extensometry techniques [J].

Chmelík, F ;

Ziegenbein, A ;

Neuhäuser, H ;

Lukác, P .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 324 (1-2) :200-207

[9] The effect of tensile deformation by in situ ultrasonic treatment on the microstructure of low-carbon steel [J].

Dutta, R. K. ;

Petrov, R. H. ;

Delhez, R. ;

Hermans, M. J. M. ;

Richardson, I. M. ;

Boettger, A. J. .

ACTA MATERIALIA, 2013, 61 (05) :1592-1602

[10]

Estrin Y., 1989, J. Mech. Behav. Mater., V2, P255

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