Dynamic Mechanical Properties of 2319 Aluminum Alloy Fabricated by Wire and Arc Additive Manufacturing

GUO Yiming; SONG Shida; QIAN Meixia; XIAO Mingkun; WANG Kehong

doi:10.7512/j.issn.1001-2303.2025.04.01

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Dynamic Mechanical Properties of 2319 Aluminum Alloy Fabricated by Wire and Arc Additive Manufacturing
Vol. 55, Issue 4, Pages: 1-7(2025)
Received：07 January 2025，

Published：20 April 2025
DOI： 10.7512/j.issn.1001-2303.2025.04.01
稿件说明：

移动端阅览

郭一鸣，宋世达，钱美霞，等.电弧增材制造2319铝合金的动态力学性能［J］.电焊机，2025，55（4）：1-7. DOI： 10.7512/j.issn.1001-2303.2025.04.01.

GUO Yiming, SONG Shida, QIAN Meixia, et al.Dynamic Mechanical Properties of 2319 Aluminum Alloy Fabricatedby Wire and Arc Additive Manufacturing[J].Electric Welding Machine, 2025, 55(4): 1-7. DOI： 10.7512/j.issn.1001-2303.2025.04.01.

摘要

由于铝合金结构件在实际服役过程中受到复杂载荷的作用，需要研究其在不同应变速率下的力学行为，对其静动态力学性能进行研究。采用电弧增材制造技术制备了2319铝合金薄壁样件，并通过准静态压缩试验和分离式霍普金森压杆试验分别研究了其在准静态和不同应变速率下动态的压缩力学性能。研究结果表明，沉积态的2319铝合金表现出明显的应变速率强化效应，与静态曲线相比，动态曲线上移。试样的屈服强度和最大流动应力均随着应变速率的增大而增大，但应变硬化率却表现出相反的变化趋势，并且屈服强度和最大流动应力的增幅也逐渐减小，这可能是由应变速率引起的硬化效应和由绝热温升引起的热软化效应相互竞争的结果。同时，随着应变速率的增大，竖直方向试样的柱状晶粒逐渐向垂直压缩载荷的方向发生更大的伸长变形，原有的沿<001>方向（沉积方向）的织构强度逐渐减弱，核平均取向差也逐渐增大，小角度晶界所占的比例略有下降。

Abstract

Aluminum alloy structural components are subjected to complex loads during their service life

necessitating an investigation into their mechanical behavior under various strain rates to understand both their static and dynamic mechanical properties. In this study

2319 aluminum alloy thin-walled specimens were fabricated using wire and arc additive manufacturing technology. Quasi-static compression tests and split Hopkinson pressure bar tests were employed to analyze their compressive mechanical properties under quasi-static conditions and at different strain rates. The findings reveal that the as-deposited 2319 aluminum alloy demonstrates a pronounced strain rate hardening effect

with the dynamic stress-strain curve shifting upwards relative to the static curve. Both the yield strength and the maximum flow stress of the specimens increase with the elevation of strain rate; however

the strain hardening rate exhibits an inverse trend. The increments in yield strength and maximum flow stress diminish progressively

likely due to the interplay between strain rate-induced hardening and adiabatic heating-induced softening effects. Additionally

as the strain rate increases

the columnar grains in the vertical direction of the specimens tend to elongate more towards the direction perpendicular to the compressive load. The texture strength along the <001> direction

which is the deposition direction

diminishes gradually

and the kernel average misorientation increases. There is also a slight decrease in the proportion of small-angle grain boundaries.

关键词

Keywords

references

Chang T ， Fang X ， Liu G ， et al . Wire and arc additive manufacturing of dissimilar 2319 and 5B06 aluminum alloys ［J］. Journal of Materials Science & Technology ， 2022 ， 124 ： 65 - 75 .

王磊磊，吕飞阅，高转妮，等 . 电弧增材制造2319铝合金交叉桁条结构微观组织与拉伸性能研究［J］. 机械工程学报， 2023 ， 59 （ 1 ）： 267 - 277 .

WANG L L ， LV F Y ， GAO Z N ， et al . Microstructure and Tensile Properties of Wire Arc Additive Manufactured 2319 Aluminum Alloy Cross-stringer Structure ［J］. Journal of Mechanical Engineering ， 2023 ， 59 （ 1 ）： 267 - 277 .

Dai G Q ， Xue M H ， Guo Y H ， et al . Gradient microstructure and strength-ductility synergy improvement of 2319 aluminum alloys by hybrid additive manufacturing ［J］. Journal of Alloys and Compounds ， 2023 ， 968 ： 171781 .

Zhang L ， Wang S T ， Wang H X ， et al . Mechanical properties and microstructure revolution of vibration assisted wire arc additive manufacturing 2319 aluminum alloy ［J］. Materials Science and Engineering：A ， 2023 ， 885 ： 145634 .

Li R S ， Wang R Z ， Zhou X M ， et al . Microstructure and mechanical properties of 2319 aluminum alloy deposited by laser and cold metal transfer hybrid additive manufacturing ［J］. Journal of Materials Research and Technology ， 2023 ， 26 ： 6342 - 6355 .

张加恒，黄祎，郭顺，等 . 超音频MIG辅助三丝电弧增材制造工艺研究［J］. 电焊机， 2023 ， 53 （ 2 ）： 104 - 110 .

ZHANG J H ， HUANG W ， GUO S ， et al . Research on Superaudio MIG Assisted Triple Wire Arc Additive Manufacturing Process ［J］. Electric Welding Machine ， 2023 ， 53 （ 2 ）： 104 - 110 .

Zhan X H ， Lyu F Y ， Wang L L ， et al . Multi-regional microstructure control using ultrasonic-assisted directed energy deposition for Al-Cu alloy ［J］. Journal of Materials Processing Technology ， 2024 ， 324 ： 118269 .

Yu H P ， Lyu F ， Jiang X ， et al . Mechanical properties and microscopic mechanisms of 2219-T6 aluminum alloy under dynamic tension with cryogenic temperatures ［J］. Materials Science and Engineering：A ， 2024 ， 891 ： 145920 .

Chen J ， Wei H Y ， Bao K ， et al . Dynamic mechanical properties of 316L stainless steel fabricated by an additive manufacturing process ［J］. Journal of Materials Research and Technology ， 2021 ， 11 ： 170 - 179 .

Zhu Z W ， Lu Y S ， Xie Q J ， et al . Mechanical properties and dynamic constitutive model of 42CrMo steel ［J］. Materials & Design ， 2017 ， 119 ： 171 - 179 .

Ma S G ， Jiao Z M ， Qiao J W ， et al . Strain rate effects on the dynamic mechanical properties of the AlCrCuFeNi2 high-entropy alloy ［J］. Materials Science and Engineering：A ， 2016 ， 649 ： 35 - 38 .

Kopec M ， Liu X C ， Gorniewicz D ， et al . Mechanical response of 6061-T6 aluminium alloy subjected to dynamic testing at low temperature： Experiment and modelling ［J］. International Journal of Impact Engineering ， 2024 ， 185 ： 104843 .

范霁康，马立，倪程，等 . 5A01铝合金薄板激光摆动焊接接头微观组织与力学性能［J］. 电焊机， 2023 ， 53 （ 1 ）： 38 - 43 .

FAN J K ， MA L ， NI C ， et al . Microstructure and Mechanical Properties of 5A01 Aluminum Alloy Sheet Joint Welded by Laser Oscillation Welding ［J］. Electric Welding Machine ， 2023 ， 53 （ 1 ）： 38 - 43 .

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