Improved plasticity of Inconel 718 superalloy fabricated by selective laser melting through a novel heat treatment process
TLDR
In this paper, a novel heat treatment (NHT) including higher temperature homogenization at 1150°C for 2.5h and one-time lower temperature aging treatment at 700C for 12h is developed, which can overcome the strength-plasticity trade-off of Inconel 718 alloy.About:
This article is published in Materials & Design.The article was published on 2019-10-15 and is currently open access. It has received 80 citations till now. The article focuses on the topics: Inconel & Superalloy.read more
Citations
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Unique crystallographic texture formation in Inconel 718 by laser powder bed fusion and its effect on mechanical anisotropy
Ozkan Gokcekaya,Takuya Ishimoto,Shinya Hibino,Shinya Hibino,Jumpei Yasutomi,Takayuki Narushima,Takayoshi Nakano +6 more
TL;DR: In this paper, a unique texture formation in Inconel 718 (IN718) using a bidirectional laser scan in a laser powder bed fusion (LPBF) process for tailoring the mechanical properties was demonstrated.
Journal ArticleDOI
Recrystallization-based grain boundary engineering of 316L stainless steel produced via selective laser melting
Shubo Gao,Zhiheng Hu,Martial Duchamp,P.S. Sankara Rama Krishnan,Sravya Tekumalla,Xu Song,Matteo Seita +6 more
TL;DR: In this article, the authors explore a different GBE processing route that leverages TB multiplication during recrystallization of austenitic 316L stainless steel produced via selective laser melting (SLM).
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A comparative analysis of Inconel 718 made by additive manufacturing and suction casting: Microstructure evolution in homogenization
TL;DR: In this paper, an interesting phenomenon during homogenization of suction-cast and AM Inconel 718 superalloys was discovered, where an abnormal grain growth in the suctioncast alloy but continuous recrystallization in the alloy made by laser powder bed fusion (LPBF).
Journal ArticleDOI
Effect of homogenization and solution treatments time on the elevated-temperature mechanical behavior of Inconel 718 fabricated by laser powder bed fusion.
Eslam M. Fayed,Mohammad Saadati,Davood Shahriari,Vladimir Brailovski,Mohammad Jahazi,Mamoun Medraj +5 more
TL;DR: In this article, the effect of homogenization and solution treatment times on the elevated-temperature (650°C) mechanical properties and fracture mechanisms of Inconel 718 (IN718) superalloy fabricated by laser powder bed fusion (LPBF) was investigated.
Journal ArticleDOI
A Comparative Analysis of Inconel 718 Made by Additive Manufacturing and Suction Casting: Microstructure Evolution in Homogenization
TL;DR: In this article, an interesting phenomenon during homogenization of suction-cast and AM Inconel 718 superalloys was discovered, where an abnormal grain growth in the suctioncast alloy but continuous recrystallization in the alloy made by laser powder bed fusion was observed.
References
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Journal ArticleDOI
Additive manufacturing of metallic components – Process, structure and properties
Tarasankar Debroy,Huiliang Wei,J.S. Zuback,T. Mukherjee,John W. Elmer,John O. Milewski,Allison M. Beese,Alexander E. Wilson-Heid,Amitava De,Wei Zhang +9 more
TL;DR: A review of the emerging research on additive manufacturing of metallic materials is provided in this article, which provides a comprehensive overview of the physical processes and the underlying science of metallurgical structure and properties of the deposited parts.
Journal ArticleDOI
Ultrahigh strength and high electrical conductivity in copper
TL;DR: Pure copper samples with a high density of nanoscale growth twins are synthesized and show a tensile strength about 10 times higher than that of conventional coarse-grained copper, while retaining an electrical conductivity comparable to that of pure copper.
Journal ArticleDOI
3-D printing: The new industrial revolution
TL;DR: The authors examines the characteristics and applications of 3D printing and compares it with mass customization and other manufacturing processes, and concludes that 3-D printing enables small quantities of customized goods to be produced at relatively low costs.
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High manganese austenitic twinning induced plasticity steels: A review of the microstructure properties relationships
TL;DR: A review of the relations between microstructure and mechanical properties is presented in this article focusing on plasticity mechanisms, strain-hardening, yield stress, texture, fracture and fatigue.
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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.