Journal ArticleDOI
Precipitation of the δ-Ni 3 Nb phase in two nickel base superalloys
TLDR
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.Abstract:
The precipitation of the equilibrium δ-Ni3Nb phase has been studied in two niobium bearing nickel base superalloys—INCONEL 718 and INCONEL* 625—both of which are hardenable by the precipitation of the metastableγ″-Ni3Nb phase. The morphology and the distribution of precipitates have been examined and the crystallographic orientation relationship between the austenite and theδ phases has been determined. The nucleation of theδ phase at stacking faults within pre-existing δ" precipitates has been discussed.read more
Citations
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Journal ArticleDOI
Microstructural characteristics, deformation behavior and mechanical properties of Inconel 718 treated by Te infiltration
TL;DR: In this paper, a new alloy infiltration method was proposed to investigate the effect of Te infiltration on nickel-based superalloy Inconel 718, and a micro-scratch test was performed to quantitatively assess the effects of Te infiltrate on the mechanical properties of the alloy.
Journal ArticleDOI
Evidence of twinning-induced plasticity (TWIP) and ultrahigh hardness in additively-manufactured near-eutectic Ni–Nb
Morgan R. Jones,N. Scott Bobbitt,Frank W. DelRio,Hannah C. Howard,Melina A. Endsley,Jonathan Pegues,Ping Lu,Andrew B. Kustas,Irene J. Beyerlein,Michael Chandross,Nicolas Argibay +10 more
Journal ArticleDOI
CALPHAD design and high-throughput search of novel Ni-based superalloys that are reinforced by γ' + γ''
TL;DR: In this paper , a high-throughput search is performed to explore novel Ni-based superalloys that are reinforced by L12 γ' + D022 γ''. On the premise of avoiding a harmful phase, V can make the alloy system produce a stable D022 structure and Nb can increase the solvus temperature of γ''-Ni3V.
References
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Book
A handbook of lattice spacings and structures of metals and alloys
W. B. Pearson,George H. Vineyard +1 more
TL;DR: The Handbook of Lattice spacings and structures of metals and alloys as discussed by the authors is a handbook of argumentative essay structure spacing and lattice plane model modified by the incorporation of thermodynamic functions appropriate to the f.c.
Book
Modern physical metallurgy
TL;DR: Modern Physical Metallurgy as mentioned in this paper describes the fundamental principles of physical metallurgy and the basic techniques for assessing microstructure and provides a balanced coverage of properties, characterization, phase transformations, crystal structure, and corrosion not available in other texts.
Book ChapterDOI
Configurational Thermodynamics of Solid Solutions
TL;DR: In this article, a review of theoretical models applicable to concentrated solid solutions is presented, focusing on concentrated solutions because dilute ones can be considered as special cases and because the interesting effects of clustering and ordering are most apparent at high solute concentrations.
Journal ArticleDOI
Precipitation of γ in the γ′of nickel-base superalloys
Journal ArticleDOI
Heat treatment of 706 alloy for optimum 1200 °F stress-rupture properties
TL;DR: In this article, a heat treatment for 706 alloy was developed which effectively optimizes the 1200°F stress-rupture properties of the alloy by precipitation of globular to plate-like Ni3Cb/Ni3Ti at the grain boundaries in conjunction with maintaining a fine as-forged grain structure.
Related Papers (5)
Morphology of y’ and y” precipitates and thermal stability of inconel 718 type alloys
R. Cozar,André Pineau +1 more