Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall

AZ31 Mg alloy thin walls are prepared using wire arc additive manufacturing (WAAM) and interlayer ultrasonic impact (UI) techniques with cold metal transition (CMT) serving as the heat source. The microstructure, mechanical and corrosion properties of thin walls prepared by WAAM and WAAM + UI are st...

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Main Authors: Xiao Liu, Siqi Yin, Guangzong Zhang, Yi Li, Renguo Guan
Format: Article
Language:English
Published: Elsevier 2024-11-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785424020453
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author Xiao Liu
Siqi Yin
Guangzong Zhang
Yi Li
Renguo Guan
author_facet Xiao Liu
Siqi Yin
Guangzong Zhang
Yi Li
Renguo Guan
author_sort Xiao Liu
collection DOAJ
description AZ31 Mg alloy thin walls are prepared using wire arc additive manufacturing (WAAM) and interlayer ultrasonic impact (UI) techniques with cold metal transition (CMT) serving as the heat source. The microstructure, mechanical and corrosion properties of thin walls prepared by WAAM and WAAM + UI are studied. Results showed that the recrystallization area fraction along traveling direction (TD) increased by 68.6% after UI treatment, and many fine equiaxed crystals were formed, resulting in grain refinement, anisotropy reduction, mechanical and corrosion properties improvement. The average grain size along TD decreased from 66.6 ± 3.5 μm to 32.7 ± 1.6 μm. Through UI treatment, the ultimate tensile strength (UTS) and elongation (EL) along TD increased from 205 MPa to 230 MPa and 13.5%–17%, respectively. The anisotropic percentage of UTS and EL were decreased from 10.8% to 4.5%, and 42.1%–9.7%, respectively. Electrochemical experimental results showed that the average corrosion rate along TD decreased from 1.93 mm year−1 to 1.53 mm year−1. Grain refinement, dislocation density variation and texture strength reduction were the main reasons for these results.
format Article
id doaj-art-c60ba5d2129444108d9e37d7cae89333
institution Kabale University
issn 2238-7854
language English
publishDate 2024-11-01
publisher Elsevier
record_format Article
series Journal of Materials Research and Technology
spelling doaj-art-c60ba5d2129444108d9e37d7cae893332024-12-26T08:53:29ZengElsevierJournal of Materials Research and Technology2238-78542024-11-0133180192Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wallXiao Liu0Siqi Yin1Guangzong Zhang2Yi Li3Renguo Guan4Engineering Research Center of Continuous Extrusion, Ministry of Education, Dalian Jiaotong University, Dalian, 116028, China; Key Laboratory of Near-Net Forming of Light Metals of Liaoning Province, Dalian Jiaotong University, Dalian, 116028, ChinaKey Laboratory of Near-Net Forming of Light Metals of Liaoning Province, Dalian Jiaotong University, Dalian, 116028, China; School of Mechanical Engineering, Dalian Jiaotong University, Dalian, 116028, China; Corresponding author. Key Laboratory of Near-Net Forming of Light Metals of Liaoning Province, Dalian Jiaotong University, Dalian, 116028, China.Engineering Research Center of Continuous Extrusion, Ministry of Education, Dalian Jiaotong University, Dalian, 116028, China; Key Laboratory of Near-Net Forming of Light Metals of Liaoning Province, Dalian Jiaotong University, Dalian, 116028, ChinaSchool of Materials Science and Engineering, Northeastern University, Shenyang, 110819, ChinaEngineering Research Center of Continuous Extrusion, Ministry of Education, Dalian Jiaotong University, Dalian, 116028, China; Key Laboratory of Near-Net Forming of Light Metals of Liaoning Province, Dalian Jiaotong University, Dalian, 116028, China; Corresponding author. Engineering Research Center of Continuous Extrusion, Ministry of Education, Dalian Jiaotong University, Dalian, 116028, China.AZ31 Mg alloy thin walls are prepared using wire arc additive manufacturing (WAAM) and interlayer ultrasonic impact (UI) techniques with cold metal transition (CMT) serving as the heat source. The microstructure, mechanical and corrosion properties of thin walls prepared by WAAM and WAAM + UI are studied. Results showed that the recrystallization area fraction along traveling direction (TD) increased by 68.6% after UI treatment, and many fine equiaxed crystals were formed, resulting in grain refinement, anisotropy reduction, mechanical and corrosion properties improvement. The average grain size along TD decreased from 66.6 ± 3.5 μm to 32.7 ± 1.6 μm. Through UI treatment, the ultimate tensile strength (UTS) and elongation (EL) along TD increased from 205 MPa to 230 MPa and 13.5%–17%, respectively. The anisotropic percentage of UTS and EL were decreased from 10.8% to 4.5%, and 42.1%–9.7%, respectively. Electrochemical experimental results showed that the average corrosion rate along TD decreased from 1.93 mm year−1 to 1.53 mm year−1. Grain refinement, dislocation density variation and texture strength reduction were the main reasons for these results.http://www.sciencedirect.com/science/article/pii/S2238785424020453AZ31 Mg alloyWire and arc additive manufacturing (WAAM)Ultrasonic impact (UI)MicrostructureMechanical propertiesCorrosion properties
spellingShingle Xiao Liu
Siqi Yin
Guangzong Zhang
Yi Li
Renguo Guan
Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall
Journal of Materials Research and Technology
AZ31 Mg alloy
Wire and arc additive manufacturing (WAAM)
Ultrasonic impact (UI)
Microstructure
Mechanical properties
Corrosion properties
title Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall
title_full Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall
title_fullStr Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall
title_full_unstemmed Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall
title_short Effect of interlayer ultrasonic impact on the microstructure, mechanical and corrosion properties of wire arc additive manufacturing AZ31 Mg alloy thin wall
title_sort effect of interlayer ultrasonic impact on the microstructure mechanical and corrosion properties of wire arc additive manufacturing az31 mg alloy thin wall
topic AZ31 Mg alloy
Wire and arc additive manufacturing (WAAM)
Ultrasonic impact (UI)
Microstructure
Mechanical properties
Corrosion properties
url http://www.sciencedirect.com/science/article/pii/S2238785424020453
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