Journal ArticleDOI
On the existence of a low strain rate regime during high temperature deformation of a superplastic 25.7% Cr - 6.6% Ni steel
B.P. Kashyap,Amiya K. Mukherjee +1 more
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This article is published in Scripta Metallurgica.The article was published on 1982-12-01. It has received 4 citations till now. The article focuses on the topics: Deformation (meteorology) & Superplasticity.read more
Citations
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Journal ArticleDOI
Superplasticity of steels and ferrous alloys
TL;DR: In this paper, the structural superplasticity of high and ultra-high carbon steels, low carbon low alloy steels and duplex stainless steels or alloys is examined.
Journal ArticleDOI
Influence of prior straining on superplastic behaviour of an Fe–Cr–Ni alloy
TL;DR: In this article, the superplastic behavior of a microduplex Fe-Cr-Ni (25·7Cr-6·6Ni) alloy was investigated in the as-worked, annealed, and prestrained conditions.
Journal ArticleDOI
Superplastic deformation and cavitation of a 14CrMn stainless steel
Mahmoud M. Farag,G. Piatti +1 more
TL;DR: In this paper, a model is proposed to estimate the rate of grain growth that occurred during superplastic deformation in terms of static grain growth, which is a function of time and the activation energy of grain boundary self-diffusion, and strain-enhanced growth.
References
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Journal ArticleDOI
The non-uniform flow of polycrystals by grain-boundary sliding accommodated by power-law creep
F.W Crossman,Michael F. Ashby +1 more
TL;DR: In this paper, a finite-element computational method was used to model the creep of polycrystalline solid by attributing a Newtonian-viscosity to the grain boundaries and a power-law viscosity to the interior.
Journal ArticleDOI
Creep at low stress levels in the superplastic Zn-22% Al eutectoid
TL;DR: A sigmoidal relationship between strain rate and stress was observed in a superplastic Zn-22% Al eutectoid alloy with grain sizes in the range of 2.1-7.5 μm.
Journal ArticleDOI
Creep behaviour in the superplastic Pb–62% Sn eutectic
TL;DR: In this paper, the creep behavior of the superplastic Pb-62% Sn eutectic was investigated for grain sizes from 5·8 to 14·5 μm and at temperatures in the range from 336 to 422 K. The results showed a sigmoidal relationship between strain rate and stress.
Journal ArticleDOI
Deformation Mechanisms in Superplasticity
TL;DR: In this paper, a sound theoretical understanding of the dependence of the superplastic strain rate on temperature, grain size, and flow stress is presented, which can be of significant use in optimization of these variables, so that the material can be deformed at the highest possible forming rates and still benefit from the exceptionally large, neck-free ductility associated with super-plasticity.
Journal ArticleDOI
High-temperature deformation mechanisms in superplastig ′n-22Al eutectoid
TL;DR: In this paper, a tensile and creep testing was performed on double shear type specimens in a normalized stress ( τ G ) range of ~5 × 10 −7 to ~5× 10 −3, and the experimental results in the employed stress range obeyed the follo′ing phenomenological effect.
Related Papers (5)
Effect of temperature and strain rate on the superplastic behaviour of high-carbon steel
M.M. Moshksar,E. Marzban Rad +1 more