Journal Article10.1016/J.MATDES.2015.10.155
Characterization of heat affected zone liquation cracking in laser additive manufacturing of Inconel 718
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TL;DR: In this paper, the authors investigated the effect of grain boundary misorientation on susceptibility to liquation cracking in laser additive manufactured Inconel 718, and the results showed that the tendency of liquation film to crack increased with grain boundary angle, which was considered to be attributed to the higher stability of liquid at larger grain boundary during the last stage of solidification.
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About: This article is published in Materials & Design. The article was published on 15 Jan 2016. The article focuses on the topics: Liquation & Cracking.
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Citations
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.
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TL;DR: In this paper, the current research status of microstructure, properties and heat treatment of SLM processing aluminum alloys is systematically reviewed respectively and a future outlook is given at the end of this review paper.
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A review of mechanical properties of additively manufactured Inconel 718
E. Hosseini,Vera Popovich +1 more
TL;DR: 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.
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Processing parameters in laser powder bed fusion metal additive manufacturing
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Revisiting fundamental welding concepts to improve additive manufacturing: From theory to practice
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References
Dislocation Models of Crystal Grain Boundaries
W. T. Read,William Shockley +1 more
TL;DR: In this article, the authors investigated the energies and motions of grain boundaries between two crystallites using the dislocation model of grain boundary and provided a quantitative expression for energy per unit area for small angles.
2K
Single-crystal laser deposition of superalloys: processing-microstructure maps
TL;DR: In this paper, a process called epitaxial laser metal forming (E-LMF) has been developed for single-crystal (SX) repair of cracked or worn parts.
887
Epitaxial laser metal forming: analysis of microstructure formation
TL;DR: In this paper, an epitaxial laser metal forming (E-LMF) is presented as a new cladding technique which combines the advantage of near-net-shape manufacturing with a close control of the solidification microstructure.
473
Texture control during laser deposition of nickel-based superalloy
TL;DR: In this article, a nickel-based superalloy was deposited on a polycrystalline substrate by a laser-aided direct metal deposition process and the effect of laser beam scanning pattern on dendrite growth morphology was investigated using electron backscatter diffraction.
400
INCONEL 718: A solidification diagram
TL;DR: In this paper, the authors used an integrated analytical approach to generate a constitution diagram for INCONEL 718* in the temperature range associated with solidification, where the important features of the diagram are an austenite (γ)/Laves phase eutectic which occurs at ≈19.1 wt pct Nb and a Laves phase which contains ≈22.4 wt nb. The distribution coefficient for Nb was found to be ≈0.5.
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