R
R.B Nicholson
Researcher at University of Cambridge
Publications - 6
Citations - 1289
R.B Nicholson is an academic researcher from University of Cambridge. The author has contributed to research in topics: Vacancy defect & Alloy. The author has an hindex of 6, co-authored 6 publications receiving 1233 citations. Previous affiliations of R.B Nicholson include University of Manchester.
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Journal ArticleDOI
On the modulated structure of aged Ni-Al alloys: with an Appendix On the elastic interaction between inclusions by J. D. Eshelby
Alan J. Ardell,R.B Nicholson +1 more
TL;DR: In this paper, it is shown that there exists an elastic interaction between the Ni-6.71 wt.% Al alloy particles arising from the difference between the elastic moduli in the precipitate and the matrix.
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The nucleation of precipitates: The system Al-Zn-Mg
TL;DR: In this article, a semiquantitative theory has been developed for the formation of precipitate free zones at grain boundaries and the results have been used to develop a model of nucleation by vacancy/solute atom clusters.
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The metallography of precipitation in an Al-16% Ag alloy
R.B Nicholson,J Nutting +1 more
TL;DR: In this article, thin foil transmission electron microscope technique has been used to study precipitation in a supersaturated Al-16% Ag alloy, and the basic sequence of decomposition is G.P. zones → γ′ → ∆.
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The nucleation and initial stages of growth of grain boundary precipitates in Al-Zn-Mg and Al-Mg alloys
TL;DR: In this paper, the early stages of grain boundary precipitation in two aluminium alloys, Al-6 %Zu-3 %Mg and Al-7 % Mg, have been examined by transmission electron microscopy, and are discussed in relation to the heat treatment procedure and the properties of individual boundaries.
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Dislocation sources in an aluminium alloy
J.D. Embury,R.B Nicholson +1 more
TL;DR: In this article, a complete study has been made of one type of dislocation source found in Al-Mg alloys, which is interpreted in terms of the Bardeen-Herring mechanism for the multiplication of dislocations by a process of climb.