Influence of interlayer temperature on microstructure of 5183 aluminium alloy made by wire arc additive manufacturing

Karan Derekar, David Griffiths, Sameehan Joshi, Jonathan Lawrence, Xiang Zhang, Adrian Addison, Geoff Melton, Lei Xu

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    The variations in mechanical properties compared to the traditional processed (wrought) products, porosity formation, and solidification cracking are the primary concerns that may restrict industrial applications of wire arc additive manufacturing (WAAM) aluminium alloy products. Interlayer temperature is one of the crucial factors that can adversely affect the built quality and properties of material produced using WAAM. The paper aims at the possible effects of different interlayer temperatures on the geometry and microstructure of WAAM aluminium 5183 alloy as a function of varying heat input. For a given heat input, samples built using a higher interlayer temperature (100°C) showed wider and shorter layer deposits with increased penetration compared with lower interlayer temperature (50°C) samples. Microstructure of the chosen material revealed columnar grains at each layer and equiaxed grains at layer overlap position and at top layer. Interlayer temperature had a minor influence on deposit geometry and microstructure.
    Original languageEnglish
    Pages (from-to)267-286
    Number of pages20
    JournalInternational Journal of Microstructure and Materials Properties
    Issue number4
    Early online date24 May 2021
    Publication statusE-pub ahead of print - 24 May 2021

    Bibliographical note

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    Lloyd's Register foundation (Grant Number KD022017COV), Coventry University (Grant Number 7477993) and Kraken project, a Horizon 2020 project (Grant Number 723759) funded by European Commission


    • WAAM
    • Wire arc additive manufacturing
    • Aluminium
    • Interlayer temperature
    • Microstructure
    • Layer geometry
    • Waam

    ASJC Scopus subject areas

    • Materials Science(all)


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