Journal ArticleDOI
Processing maps for hot deformation of α2 aluminide alloy Ti-24Al-11Nb
TLDR
Using the test data of α2 titanium aluminide alloy Ti-24Al-11Nb with microstructural observations, studies were made to examine the flow localization concepts as well as the simplified metallurgical stability criterion for delineating the regions of flow instabilities in the processing maps.Abstract:
Using the test data of α2 titanium aluminide alloy Ti-24Al-11Nb with microstructural observations, studies are made to examine the flow localization concepts as well as the simplified metallurgical stability criterion for delineating the regions of flow instabilities in the processing maps. The optimum hot working conditions for the material are suggested.read more
Citations
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Journal ArticleDOI
Experimental investigation of the hot deformation behavior of AA7075: Development and comparison of flow localization parameter and dynamic material model processing maps
Arash Jenab,A. Karimi Taheri +1 more
TL;DR: In this paper, the hot deformation characteristics of 7075 aluminum alloy (AA7075) were investigated by means of hot compression tests carried out in the temperature range of 200-450°C and strain rate range of 0.0003-1-s−1.
Journal ArticleDOI
Hot workability of γ + α2 titanium aluminide: Development of processing map and constitutive equations
TL;DR: In this paper, a hot isothermal compression test is carried out on reaction synthesized and homogenized titanium aluminide alloys at different temperatures and strain rates using Gleeble thermomechanical simulator.
Journal ArticleDOI
Development and validation of a processing map for Aermet100 steel
TL;DR: In this article, a processing map of Aermet100 steel was developed based on a simple instability condition applicable to a general flow stress versus strain rate curve at any strain and temperature.
Journal ArticleDOI
Positive influence of hydrogen on the hot workability and dynamic recrystallization of a γ-TiAl based alloy
TL;DR: In this paper, high temperature deformation behaviors of the unhydrogenated and hydrogenated Ti-46Al-2V-1Cr-0.3Ni alloys were investigated in the temperature range 1050-1200 ǫ c and strain rate range 0.001-1 s−1.
Journal ArticleDOI
Experimental investigation of Ti-Nb-Co ternary system at 1000 °C
TL;DR: In this paper, the phase relations and ternary solubility of the binary compounds were determined using electron probe microscopy (EPMA), wave dispersive X-ray spectrometer (WDS), and XRD techniques.
References
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High-temperature ordered intermetallic alloys
TL;DR: In this article, the authors describe the behavior of grain boundaries in a two-dimensional model ordered alloy and the effects of elastic anisotropy on the anomalious yield behavior of cubic ordered alloys.
Book
Formability and workability of metals : plastic instability and flow localization
S. L. Semiatin,John J. Jonas +1 more
Journal ArticleDOI
Instability map for hot working of 6061 Al-10 vol% metal matrix composite
TL;DR: In this paper, a simple condition for metallurgical instability, useful in the development of processing maps for analysing high-temperature forming of metals, is suggested following a criterion based on continuum principles as applied to large plastic flow proposed by Ziegler.