The deformation behaviour of a Zn-1, 1 wt. % Al alloy was investigated at 293 and 373 K in a wide range of strain rates. The strain rate sensitivity is a complex function of temperature and strain rate. The maximum strain rate sensitivity occurs at higher strain rates as temperature is ...
Pearce: Acta Metall. , 1974, vol. 22, p. 1321.H. Naziri and R. Pearce, Acta metall. 22 , 1321 (1974).H. Naziri and R. Pearce: Acta Met. , 1974, vol. 22, p. 1321.Naziri, H. and Pearce, R. (1974). ‘Superplasticity in a Zn —0.4%Al Alloy’, Acta Met ., 22 , 1321...
H. Super-plasticity in an Al-Zn alloy. Trans. Am. Soc. Met. 57, 980–990 (1964). Google Scholar Hart, E. W. Theory of tensile test. Acta Met. 15, 351–355 (1967). Article CAS Google Scholar Naziri, H. & Pearce, R. Extended plasticity in commercial purity zinc. J. Inst....
Alloy design In the present study the superplasticity of an Al-bearing MMS was investigated using Fe-6.6Mn-2.3Al-0.005 C (wt.%) cold-rolled steel. Al was added to increase the temperature range of the α plus γ dual-phase superplastic flow regime, where the high-temperature tensile te...
Thereisnowagreatinterestindevelopinghighly- formableAlalloys,andinparticularAl±Mgbased alloys,forapplicationleadingtolightweightve- hicles.Signi®canteortshavebeenmadeto improvetheformabilityofAl±Mgalloys;Al±Mgis asubstitutionalsolid-solutionalloy.Atappropriate temperaturesandstrainrates,thisalloyundergoes...
excellent superplastic elongation of 628% at 250 °C under strain rate of 1.67 × 10−3s−1. Low-temperature superplasticity was obtained after four passes of ECAP at 200 °C. A theoretical foundation for severe plastic deformation of magnesium alloy at low temperature is developed in this ...
A very fine-grained Al Zn Mg Cu Zr alloy prepared using high energy gas atomization was studied. The alloy exhibits structural superplasticity at temperatures between 700 and 800 K at strain rates of the order 10 2 s 1 . Its deformation behaviour may be described by the concept of a ...
In the paper the results of the deformation behaviour study in a fine-grained Zn-1·1 wt. % Al alloy are presented. The influence of strain rate ranging from 4·2×10 −5 to 4·2×10 −2 s −1 on the true stress — true strain curves, ductility and strain rate sensitivity ...
An Mg-Al-Zn alloy with verry high specific strength and superior High-strain-rate superplasticity processed by reciprocating extrusion[J].Advances in Engineering Materials 2004,6(12).Lee S W,Wang H Y,Chen Y L,et al.An Mg-Al-Zn alloy with very high specific strength and superior high-...
In order to explore the high temperature ductility of ultra-light magnesium-lithium alloy, a new Mg-7.28Li-2.19Al-0.091Y (LAY720) alloy was prepared by casting and rolling. The microstructural evolution, mechanical properties, model, and deformation mechanism under hot tension were studied by opti...