Solid-state processing of surplus aluminium alloy powders through a combination of field-assisted sintering technology and hot rolling

IF 1.9 4区 材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING Powder Metallurgy Pub Date : 2023-01-29 DOI:10.1080/00325899.2023.2171582
S. Graham, A. Patel, B. Fernández Silva, W. Stott, G. Baxter, M. Roscher, M. Jackson
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Abstract

ABSTRACT Metal additive manufacturing techniques typically operate using powders with limited particle size ranges, but atomisation processes produce significant amounts of particles outside these ranges, resulting in an accumulation of out-of-size specification metal powders without a clear use case. Field-assisted sintering technology (FAST) can provide an alternative, solid-state processing route to consolidate these powders into billets for subsequent processing, or directly into near-net shape components. In this study, surplus powders of A20X, an aerospace approved aluminium alloy developed by Aluminium Materials Technologies (ECKART GmbH), were processed using FAST and subsequently hot rolled to produce sheet material. Tensile properties were similar to hot rolled conventional cast material and comparable to additively manufactured product. This indicates that FAST is an effective option for converting surplus metal powders into useful products, while improving sustainability in the additive supply chain. GRAPHICAL ABSTRACT
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场助烧结与热轧相结合的剩余铝合金粉末固态加工
金属增材制造技术通常使用具有有限粒度范围的粉末进行操作,但雾化过程会产生大量超出这些范围的颗粒,导致没有明确使用案例的超尺寸规格金属粉末的积累。场辅助烧结技术(FAST)可以提供一种替代的固态加工路线,将这些粉末固化成坯料,用于后续加工,或者直接成近净形状的部件。在这项研究中,A20X的剩余粉末是由铝材料技术公司(ECKART GmbH)开发的一种航空航天批准的铝合金,使用FAST进行加工,随后进行热轧以生产板材。拉伸性能与热轧常规铸造材料相似,可与增材制造产品相媲美。这表明FAST是将剩余金属粉末转化为有用产品的有效选择,同时提高了增材供应链的可持续性。图形抽象
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来源期刊
Powder Metallurgy
Powder Metallurgy 工程技术-冶金工程
CiteScore
2.90
自引率
7.10%
发文量
30
审稿时长
3 months
期刊介绍: Powder Metallurgy is an international journal publishing peer-reviewed original research on the science and practice of powder metallurgy and particulate technology. Coverage includes metallic particulate materials, PM tool materials, hard materials, composites, and novel powder based materials.
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