Journal ArticleDOI
A review of mechanical properties of additively manufactured Inconel 718
E. Hosseini,Vera Popovich +1 more
TLDR
Inconel 718 is one of the most commonly employed alloys for metal additive manufacturing (MAM) and has a wide range of applications in aircraft, gas turbines, turbocharger rotors, and a variety of other corrosive and structural applications involving temperatures of up to ∼700°C as discussed by the authors.Abstract:
Inconel 718 is one of the most commonly employed alloys for metal additive manufacturing (MAM) and has a wide range of applications in aircraft, gas turbines, turbocharger rotors, and a variety of other corrosive and structural applications involving temperatures of up to ∼700 °C. Numerous studies have investigated different aspects of the mechanical behaviour of additively manufactured (AM) Inconel 718. This study analyses the observations from more than 170 publications to provide an unbiased engineering overview for the mechanical response of AM Inconel 718 (and its variations and spread among different reports). First, a brief review of the microstructural features of AM Inconel 718 is presented. This is followed by a comprehensive summary of tensile strength, hardness, fatigue strength, and high-temperature creep behaviour of AM Inconel 718 for different types of MAM techniques and for different process and post-process conditions.read more
Citations
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Journal ArticleDOI
Material-structure-performance integrated laser-metal additive manufacturing.
TL;DR: In this article, a holistic concept of material-structure-performance integrated additive manufacturing (MSPI-AM) is proposed to cope with the extensive challenges of laser-based additive manufacturing.
Journal ArticleDOI
Progress and perspectives in laser additive manufacturing of key aeroengine materials
TL;DR: In this paper, the authors provide a critical and in-depth evaluation of laser powder bed fusion (LPBF) and laser directed energy deposition (LDED) technologies of the mentioned aeroengine materials.
Journal ArticleDOI
Defects and anomalies in powder bed fusion metal additive manufacturing
Amir Mostafaei,Cang Zhao,Yining He,Seyed Reza Ghiaasiaan,Bo Shi,Shuai Shao,Nima Shamsaei,Ziheng Wu,Nadia Kouraytem,Tao Sun,Joseph Pauza,Jerard V. Gordon,Bryan A. Webler,Niranjan D. Parab,Mohammadreza Asherloo,Qi Chao Guo,Lianyi Chen,Anthony D. Rollett +17 more
TL;DR: In this article , a review of common defects and anomalies in powder bed fusion metal additive manufacturing processes is presented, where the formation mechanism and practical mitigation strategies are discussed, as well as properties such as mechanical behavior and corrosion resistance of defective parts.
Journal ArticleDOI
Effects of porosity on the mechanical properties of additively manufactured components: a critical review
Journal ArticleDOI
On the relationship between cutting forces and anisotropy features in the milling of LPBF Inconel 718 for near net shape parts
José David Pérez-Ruiz,L.N. López de Lacalle,Gorka Urbikain,Octavio Pereira,Silvia Martinez,Jorge Bris +5 more
TL;DR: In this article, the effects of additive manufacturing parameters on cutting forces and anisotropy of alloys were examined. And an oblique cutting Taylor based model was proposed to quantify the crystallographic effects on the shear strength.
References
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Journal ArticleDOI
Microstructures and mechanical behavior of Inconel 718 fabricated by selective laser melting
Krista Amato,Sara M. Gaytan,Lawrence E Murr,E. Martinez,P. W. Shindo,Jennifer Hernandez,S. Collins,Francisco Medina +7 more
TL;DR: In this paper, the Inconel 718 cylinders were fabricated by selective laser melting in either argon or nitrogen gas from a pre-alloyed powder, and they exhibited columnar grains and arrays of oblate ellipsoidal precipitates oriented in a strong [2.0.0] texture determined by combined optical metallography, transmission electron microscopy, and X-ray diffraction analysis.
Journal ArticleDOI
Selective laser melting additive manufacturing of Inconel 718 superalloy parts: Densification, microstructure and properties
Qingbo Jia,Dongdong Gu +1 more
TL;DR: In this paper, a comprehensive study of densification behavior, microstructural features, microhardness, wear performance and high-temperature oxidation properties of Inconel 718 parts fabricated by selective laser melting (SLM), a typical additive manufacturing process was established.
Journal ArticleDOI
The microstructure and mechanical properties of deposited-IN718 by selective laser melting
TL;DR: In this paper, the starting material, manufacturing processes, heat treatment and characterization procedures of mechanical properties are presented, and the microstructure is crucial for the mechanical properties of IN718.
Journal ArticleDOI
Effect of heat treatment on the microstructure and mechanical properties of Inconel 718 processed by selective laser melting
TL;DR: The microstructural and mechanical properties of Inconel 718 were determined on the specimens manufactured by selective laser melting (SLM) of prealloyed powder as mentioned in this paper, showing that columnar grains of supersaturated solid solution with internal microsegregation of Nb and Mo, demonstrated by fractions of Laves eutectic or its divorced form in interdendritic regions.
Journal ArticleDOI
Correlation between porosity and processing parameters in TiAl6V4 produced by selective laser melting
TL;DR: In this article, the porosity is investigated by 2D and 3D methods aiming to identify the mechanisms of void formation, their morphology as well as volume fraction as a function of the energy density.