Journal ArticleDOI
Investigation on microstructure evolution of a new disk superalloy under different hot process
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TLDR
In this article, the microstructure evolution of gamma prime phase under different conditions was systematically analyzed, and the reasonable heat treatment regime of FGH100L alloy was determined based on microstructural characterization of γ′ phase.About:
This article is published in Metal Powder Report.The article was published on 2018-11-01. It has received 6 citations till now. The article focuses on the topics: Hot isostatic pressing & Spray forming.read more
Citations
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Microstructures and mechanical properties evolution of IN939 alloy during electron beam selective melting process
Yang Li,Yang Li,Xiaoyu Liang,Xiaoyu Liang,Yefeng Yu,Yefeng Yu,Hongxin Li,Hongxin Li,Wenbin Kan,Wenbin Kan,Feng Lin,Feng Lin +11 more
TL;DR: In this paper, defect-free IN939 superalloy specimens were prepared and characterized using the electron beam selective melting (EBSM) method, and the results showed that the yield strength was influenced by the gradient microstructure.
Journal ArticleDOI
Microstructure, mechanical properties and strengthening mechanisms of IN738LC alloy produced by Electron Beam Selective Melting
Yang Li,Yang Li,Wenbin Kan,Wenbin Kan,Yanming Zhang,Yanming Zhang,Ming-zhi Li,Ming-zhi Li,Xiaoyu Liang,Xiaoyu Liang,Yefeng Yu,Yefeng Yu,Feng Lin,Feng Lin +13 more
TL;DR: In this article, the IN738LC superalloy specimens are successfully prepared by Electron Beam Selective Melting (EBSM) and a new defect-free criterion is established and the processing window with a proper energy density to keep the specimens defect free (pores, lack of fusions less than 50 µm, without crack and linear defect) is determined.
Journal ArticleDOI
Effect of Heat Treatment on Microstructure and Properties of FGH4096M Superalloy Processed by Selective Laser Melting
TL;DR: A self-designed nickel-based superalloy, designated as FGH4096M, was prepared by selective laser melting (SLM), and different heat treatments were performed to improve the mechanical properties of the SLM alloy through optimizing the microstructures and the features of γ′ precipitates as discussed by the authors.
Journal ArticleDOI
Effects of hot processes on microstructure evolution and tensile properties of FGH4096 Ni-based superalloy processed by Laser Powder Bed Fusion
TL;DR: In this paper, the effects of HIP temperature on the microstructural evolution and tensile properties of an LPBF prepared typical second generation of powder metallurgy (PM) nickel-based superalloy which was designated as FGH4096.
Journal ArticleDOI
Influence of aging treatment on microstructure and properties of a novel spray formed powder metallurgy superalloy FGH100L
TL;DR: In this article, the microstructure stability and mechanical properties of the alloy during the long-term aging treatment at 760°C were studied, and the sub-solvus alloy after long term aging exhibited superior high temperature tensile properties.
References
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Journal ArticleDOI
Review Progress in Ostwald ripening theories and their applications to the γ′-precipitates in nickel-base superalloys Part II Nickel-base superalloys
TL;DR: The Lifshitz-Slyozof-Wagner (LSW) theory was developed to model the kinetics of precipitate growth from supersaturated solid solutions as discussed by the authors.
Journal ArticleDOI
Precipitation and dissolution processes in γ/γ′ single crystal nickel-based superalloys
TL;DR: In this paper, an experimental analysis of the γ ↔ γ + γ → phase transformations in two single-crystal Nickel-based superalloys is presented, characterised by differential thermal analysis and dilatometry measurements and microscopically by qualitative and quantitative metallography of samples quenched during various thermal cycles.
Journal ArticleDOI
Atomization process for metal powder
Stanislav Lagutkin,Lydia Achelis,Sheikhali Sheikhaliev,Volker Uhlenwinkel,Vikas C Srivastava +4 more
TL;DR: In this article, a new atomization process was developed, which combines pressure and gas atomization to achieve a narrow size distribution and low specific gas consumption compared to conventional gas atomisation techniques.
Journal ArticleDOI
Mechanisms related to different generations of γ′ precipitation during continuous cooling of a nickel base superalloy
A.R.P. Singh,Soumya Nag,Soma Chattopadhyay,Soma Chattopadhyay,Yang Ren,Jaimie Tiley,G.B. Viswanathan,Hamish L. Fraser,Rajarshi Banerjee +8 more
TL;DR: In this paper, a mechanistic understanding of the process of multiple nucleation bursts leading to the formation of multiple generations (or populations) of γ′ precipitates with different size distributions, during the continuous cooling of a commercially used nickel base superalloy was developed.
Journal ArticleDOI
The coarsening kinetics of γ′ particles in nickel-based alloys
TL;DR: In this paper, a method for calculating the coarsening rate of binary Ni-Al alloys and a wide range of multicomponent alloys is described, which has been applied to both binary and multi-component alloys.
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