层间温度对电弧增材制造5183铝合金组织的影响

Q4 Materials Science

International Journal of Microstructure and Materials Properties Pub Date : 2020-01-01 DOI:10.1504/IJMMP.2020.115191

Karan S. Derekar, David Griffiths, S. Joshi, J. Lawrence, Xiang Zhang, A. Addison, G. Melton, Lei Xu

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引用次数: 0

摘要

与传统加工(锻造)产品相比，机械性能的变化、孔隙形成和凝固开裂是限制电弧增材制造(WAAM)铝合金产品工业应用的主要问题。层间温度是影响WAAM材料质量和性能的关键因素之一。本文旨在研究不同层间温度随热输入的变化对WAAM 5183铝合金几何和显微组织的可能影响。对于给定的热输入，使用较高层间温度(100°C)构建的样品与使用较低层间温度(50°C)的样品相比，显示出更宽、更短的层沉积，并增加了渗透。所选材料的微观结构显示，各层均为柱状晶粒，层重叠处和顶层均为等轴晶粒。层间温度对镀层的形貌和微观结构影响较小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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.

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来源期刊

International Journal of Microstructure and Materials Properties Materials Science-Materials Science (all)

CiteScore

0.70

自引率

0.00%

发文量

期刊介绍： IJMMP publishes contributions on mechanical, electrical, magnetic and optical properties of metal, ceramic and polymeric materials in terms of the crystal structure and microstructure. Papers treat all aspects of materials, i.e., their selection, characterisation, transformation, modification, testing, and evaluation in the decision-making phase of product design/manufacture. Contributions in the fields of product, design and improvement of material properties in various production processes are welcome, along with scientific papers on new technologies, processes and materials, and on the modelling of processes.