Journal ArticleDOI
On the mechanism of strain-enhanced grain growth during superplastic deformation
Reads0
Chats0
TLDR
In this article, a geometrical model is used to show how the recovery of this damage by boundary migration, enhances the normal grain growth process, based on the postulate of Holm el al.About:
This article is published in Acta Metallurgica.The article was published on 1984-09-01. It has received 175 citations till now. The article focuses on the topics: Grain Boundary Sliding & Grain boundary strengthening.read more
Citations
More filters
Journal ArticleDOI
Superplasticity in advanced materials
TL;DR: A review of superplasticity in polycrystalline materials can be found in this article, where the authors present an overview of these new developments using the established behavior of conventional metallic alloys as a standard for comparison with the mechanical properties of new materials.
Journal ArticleDOI
Deformation behavior of Mg–Zn–Y alloys reinforced by icosahedral quasicrystalline particles
TL;DR: In this article, the deformation behavior of Mg-Zn-Y alloys at room and elevated temperatures has been investigated and the variation of the flow stress in the alloys is characterized by linking the microstructural evolution during deformation at high temperatures.
Journal ArticleDOI
Consolidation enhancement in spark-plasma sintering: Impact of high heating rates
TL;DR: In this paper, the influence of a major factor of thermal nature, such as high heating rates, on the performance of powder consolidation has been analyzed in Spark-Plasma Sintering (SPS).
Journal ArticleDOI
Stress-enhanced grain growth in a nanocrystalline material by molecular-dynamics simulation
TL;DR: In this paper, the coupling between grain growth and grain-boundary diffusion creep was investigated in a polycrystal consisting of 25 grains with an average grain size of about 15 nm and a columnar grain shape.
Journal ArticleDOI
Application of quasicrystalline particles as a strengthening phase in Mg–Zn–Y alloys
TL;DR: In this paper, the deformation behavior of fine-grained magnesium alloys reinforced by quasicrystalline particles was investigated and compared with that of commercial AZ31, AZ61 and AZ91 alloys.
References
More filters
Journal ArticleDOI
On the theory of normal and abnormal grain growth
TL;DR: In this article, a growth equation for individual grains in single-phase materials is suggested, which is used to calculate a rate equation for normal grain growth and the size distribution in the material.
Journal ArticleDOI
Diffusion-accommodated flow and superplasticity
M.F. Ashby,R. A. Verrall +1 more
TL;DR: In this article, a new mechanism for superplastic deformation is described and modelled, which differs fundamentally from Nabarro-Herring and Coble creep in a topological sense: grains switch their neighbors and do not elongate significantly.
Journal ArticleDOI
Mechanical behavior and hardening characteristics of a superplastic Ti-6AI-4V alloy
Amit K. Ghosh,C. H. Hamilton +1 more
TL;DR: In this article, the deformation behavior of a superplastic Ti-6A1-4V alloy at 927°C has been characterized by means of constant strain-rate tensile tests up to large plastic strain.
Journal ArticleDOI
Grain rearrangements during superplastic deformation
TL;DR: In this paper, a new model is proposed in which grainboundary sliding (GBS) in a group of grains is accommodated by a grain emerging from the next layer of grains, giving the correct increase in surface area.
Journal ArticleDOI
Deformation enhanced grain growth in a superplastic Sn-1% Bi alloy
M.A Clark,T.H Alden +1 more
TL;DR: In this article, the effect of superplastic deformation on the grain growth kinetics was studied using both constant crosahead speed and creep tests, the grain size was measured as a function of deformation time and strain over a wide range of strain rates.