Journal ArticleDOI
On the Time-Temperature-Transformation Behavior of a New Dual-Superlattice Nickel-Based Superalloy
TLDR
In this paper, Roberts et al. used the diamond light source for beam time provisioning, which was provided through the EPSRC/Rolls-Royce strategic partnership EP/M005607/1 and EP/H022309/1.Abstract:
The authors would like to thank K. Roberts and S. Rhodes for experimental assistance, and acknowledge funding through the EPSRC/Rolls-Royce strategic partnership EP/M005607/1 and EP/H022309/1 as well as from the Diamond Light Source for the provision of beam time (EE9270).read more
Citations
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Journal ArticleDOI
Alloys-by-design: Application to new superalloys for additive manufacturing
Yuanbo T. Tang,Chinnapat Panwisawas,Joseph N. Ghoussoub,Yilun Gong,John W. G. Clark,André A. N. Németh,D. Graham McCartney,Roger C. Reed +7 more
TL;DR: In this paper, a new grade of γ/γ′ nickel-based superalloy for the additive manufacturing process is designed using computational approaches, taking account of the need to avoid defect formation via solidification and solid-state cracking.
Journal ArticleDOI
On modelling of laser assisted machining: Forward and inverse problems for heat placement control
TL;DR: In this article, a spatially and temporally (S&T) controlled laser heating method was proposed, in which a large area can be heated up with a small laser spot by controlling the beam scanning, i.e., laser power, path and speed of scanning.
Journal ArticleDOI
Improving creep resistance of nickel-based superalloy Inconel 718 by tailoring gamma double prime variants
TL;DR: In this paper, the authors observed an abnormal γ-prime with tailored orientation and shape in directly aged cold-rolled Inconel 718, and the results proved its substantial benefits in improving creep resistance at 650 ǫ°C superior to commonly perpendicular γ′ prime.
Journal ArticleDOI
Effect of micro-segregation of alloying elements on the precipitation behaviour in laser surface engineered Alloy 718
S.A. Mantri,Sriswaroop Dasari,Abhishek Sharma,Talukder Alam,Mangesh V. Pantawane,Mayur Pole,Shashank Sharma,Narendra B. Dahotre,Rajarshi Banerjee,Srikumar Banerjee,Srikumar Banerjee +10 more
TL;DR: In this paper, the micro-segregation of alloying elements in the fusion zone of laser surface melted Alloy 718 samples has been found to have a strong influence on the local precipitation behavior.
Journal ArticleDOI
On the influence of heat treatment on microstructure and mechanical behavior of laser powder bed fused Inconel 718
Jakob Schröder,Tatiana Mishurova,Tobias Fritsch,Itziar Serrano-Munoz,Alexander Evans,Maximilian Sprengel,Manuela Klaus,Christoph Genzel,Judith Schneider,Giovanni Bruno,Giovanni Bruno +10 more
TL;DR: In this article, the microstructure and tensile behavior of Inconel 718 specimens produced by a laser powder bed fusion process were characterized using in-situ synchrotron energy dispersive X-ray diffraction tensile testing.
References
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Journal ArticleDOI
Morphology of y’ and y” precipitates and thermal stability of inconel 718 type alloys
R. Cozar,André Pineau +1 more
TL;DR: In this article, the precipitation microstructure varies rapidly with aging temperature and composition, and the influence of composition and aging temperature on the conditions that bring about this compact morphology has been investigated.
Journal ArticleDOI
Precipitation of the δ-Ni 3 Nb phase in two nickel base superalloys
TL;DR: In this article, the precipitation of the metastable δ-Ni3Nb phase has been studied in two niobium bearing nickel base superalloys and the morphology and distribution of precipitates have been examined and the crystallographic orientation relationship between the austenite and the δ phases has been determined.
Journal ArticleDOI
Some aspects of the precipitation of metastable intermetallic phases in INCONEL 718
TL;DR: In this article, the authors investigated the precipitation of the metastable intermetallic phases (γ and γ) in the commercial nickel base superalloy, INCONEL 718, over a wide range of aging temperatures.
Proceedings ArticleDOI
The Metallurgy of Alloy 625
S. Floreen,G. E. Fuchs,W.J. Yang +2 more
TL;DR: In this paper, the effects of alloy composition and processing history on the microstructure and properties of Alloy 625 are described, including the solidification behavior, the precipitation of different carbides, and Delta, Laves and y" phases.
Journal ArticleDOI
Strengthening mechanisms in Inconel 718 superalloy
M. C. Chaturvedi,Ya-fang Han +1 more
TL;DR: In this article, the yielding behavior of underaged Inconel alloy 718, which is precipitation hardened by coherent ordered bct γ″ and ordered fcc γ′ phases, has been studied.