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.
|Number of pages||20|
|Journal||International Journal of Microstructure and Materials Properties|
|Early online date||24 May 2021|
|Publication status||E-pub ahead of print - 24 May 2021|
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FunderLloyd'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
- Wire arc additive manufacturing
- Interlayer temperature
- Layer geometry
ASJC Scopus subject areas
- Materials Science(all)