Journal ArticleDOI
Some new aspects concerning particle hardening mechanisms in γ' precipitating Ni-base alloys—I. Theoretical concept
TLDR
In this article, a theoretical concept is developed which rests on existing hardening models estimating the increase of the yield stress due to pairwise particle cutting and anti-phase domain boundary (APB) formation.About:
This article is published in Acta Metallurgica.The article was published on 1982-01-01. It has received 205 citations till now. The article focuses on the topics: Hardening (metallurgy) & Nimonic.read more
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The Superalloys: Fundamentals and Applications
TL;DR: In this paper, the physical metallurgy of nickel and its alloys is discussed and single crystal superalloys for blade applications for turbine disc applications are discussed. And the role of coatings is discussed.
Journal ArticleDOI
Heat treatment of UDIMET 720Li: the effect of microstructure on properties
M.P. Jackson,Roger C. Reed +1 more
TL;DR: In this article, the evolution during heat treatment of the as-forged microstructure of the high strength superalloy UDIMET 720Li has been studied and the results have implications for the gas turbine manufacturers.
Journal ArticleDOI
Mechanical properties of Ni3AI and nickel-base alloys with high volume fraction of γ'
D. P. Pope,S. S. Ezz +1 more
TL;DR: In this article, it is shown that the flow stress of Ni3AI has a very unusual temperature dependence: it increases with increasing temperature, which is due to thermally activated cross-slip from {111} planes to {010} planes of screw dislocations.
Journal ArticleDOI
On the prediction of the yield stress of unimodal and multimodal γ′ Nickel-base superalloys
TL;DR: In this article, a new model for the yield stress in superalloys accounting for unimodal and multimodal size distributions is presented and important features not previously considered are incorporated in the model.
Journal ArticleDOI
Yielding and deformation behavior of the single crystal superalloy PWA 1480
TL;DR: In this paper, a series of tensile tests were conducted to fixed plastic strain levels in 100 ordered single crystals of the nickel-based superalloy PWA 1480, at a strain rate of 0.5 and 50 percent/min.
References
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Journal ArticleDOI
A Statistical Theory of Solid Solution Hardening
TL;DR: The critical shear stress τc to move a dislocation through a random array of obstacles in the glide plane is calculated using a statistical theory and the theory provides a definite prescription how to combine the concentrations and interaction forces of obstacles of different kinds.
Journal ArticleDOI
The effect of dislocation self-interaction on the Orowan stress
TL;DR: In this article, the effect of dislocation self-interaction on the Orowan stress was determined for collinear, impenetrable circular obstacles, and an appropriate integro-differential equation governing static equilibrium was solved by an algorithm based on curvature adjustments.
Journal ArticleDOI
Statistische theorien der mischkristallhärtung
TL;DR: In this paper, the wichtigsten Parameter der Mischkristallhartung (MKH) sind: the Fremdatomkonzentration c, the Reichweite der Wechselwirkung zwischen Fremdata and Versetzung w, the Wechselswirkingsstarke ǫ 0 and the Linienspannung der Versetzing T.
Journal ArticleDOI
Strengthening Mechanisms in γ′ Precipitating Alloys
D. Raynor,J. M. Silcock +1 more
TL;DR: In this paper, the mechanical properties of several austenitic steels containing γ′ precipitate have been studied and a large increase in proof stress occurs during ageing as a result of particle growth at almost co...