The Russian Novel in France, 1884-1914

McLean, Hugh; Hemmings, F. W. J.

doi:10.2307/40091245

Cited by 1 publication

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“…These microstructures are different from that developed in zone-I since the initial microstructure is refined during deformation. Although some features of the extrusion direction are evident, the primary elongated grains are transformed to form new recrystallized grains [22].…”

Section: Microstructurementioning

confidence: 99%

Microstructure and creep behaviour of an Osprey processed and extruded Al–Cu–Mg–Ti–Ag alloy

Eddahbi

Jiménez

Ruano

2007

Journal of Alloys and Compounds

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This paper reports the microstructure and creep behaviour of an Al-Cu-Mg-Ti-Ag alloy processed via Osprey forming and extrusion. The microstructure of the as-received extruded bars showed elongated grains towards the extrusion direction, which contained a fine substructure. Elongation to failure values of about 25% were obtained at test temperatures up to 400 • C and for strain rates ranging from 10 −4 to 10 −2 s −1 . In this temperature range, the mechanical behaviour of the alloy was similar to that of particle-strengthened aluminium alloys: (1) the apparent stress exponents of n = 17 and 7 were higher than that reported for most aluminium alloys; (2) the microstructure and the texture did not change significantly during tensile deformation. At temperatures higher than 400 • C, the elongated grains of the microstructure started to recrystallize into smaller grains and a maximum elongation to failure of 170% was observed at 520 • C and 10 −4 s −1 . Tensile tests performed at higher strain rates in this temperature range revealed a stress exponent of 4.5, which corresponds to a slip creep mechanism.

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Section: Microstructurementioning

confidence: 99%