Publisher DOI: 10.1016/j.actamat.2016.07.019
Title: Additive manufacturing of metals
Language: English
Authors: Herzog, Dirk 
Seyda, Vanessa 
Wycisk, Eric 
Emmelmann, Claus 
Keywords: Additive manufacturing; Metals; Microstructure; Properties
Issue Date: 15-Sep-2016
Source: Acta Materialia (117) : 371-392 (2016-09-15)
Abstract (english): 
Additive Manufacturing (AM), the layer-by layer build-up of parts, has lately become an option for serial production. Today, several metallic materials including the important engineering materials steel, aluminium and titanium may be processed to full dense parts with outstanding properties. In this context, the present overview article describes the complex relationship between AM processes, microstructure and resulting properties for metals. It explains the fundamentals of Laser Beam Melting, Electron Beam Melting and Laser Metal Deposition, and introduces the commercially available materials for the different processes. Thereafter, typical microstructures for additively manufactured steel, aluminium and titanium are presented. Special attention is paid to AM specific grain structures, resulting from the complex thermal cycle and high cooling rates. The properties evolving as a consequence of the microstructure are elaborated under static and dynamic loading. According to these properties, typical applications are presented for the materials and methods for conclusion.
URI: http://hdl.handle.net/11420/3498
ISSN: 1359-6454
Journal: Acta materialia 
Institute: Laser- und Anlagensystemtechnik G-2 
Document Type: Article
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