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Prasad, Y. V. R. K.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (66/66 displayed)
- 2019Forging of Mg–3Sn–2Ca–0.4Al Alloy Assisted by Its Processing Map and Validation Through Analytical Modeling
- 2019Textural Changes in Hot Compression of Disintegrated Melt Deposition (DMD)–Processed AZ31-1Ca-1.5 vol. % Nano-Alumina Composite
- 2018Hot forging behavior of Mg−8Al−4Ba−4Ca (ABaX844) alloy and validation of processing mapcitations
- 2018Enhancement of Strength and Hot Workability of AZX312 Magnesium Alloy by Disintegrated Melt Deposition (DMD) Processing in Contrast to Permanent Mold Castingcitations
- 2018Role of loading direction on compressive deformation behavior of extruded ZK60 alloy plate in a wide range of temperaturecitations
- 2018Connected Process Design for Hot Working of a Creep-Resistant Mg–4Al–2Ba–2Ca Alloy (ABaX422)citations
- 2018Hot forging of Mg-4Al-2Ba-2Ca (ABaX422) alloy and validation of processing mapcitations
- 2018Hot forging of Mg-4Al-2Ba-2Ca (ABaX422) alloy and validation of processing mapcitations
- 2018Development and comparison of processing maps of Mg-3Sn-1Ca alloy from data obtained in tension versus compressioncitations
- 2018Review on Hot Working Behavior and Strength of Calcium-Containing Magnesium Alloyscitations
- 2017Optimization of Thermo-Mechanical Processing for Forging of Newly Developed Creep-Resistant Magnesium Alloy ABaX633citations
- 2017High Temperature Strength and Hot Working Technology for As-Cast Mg–1Zn–1Ca (ZX11) Alloycitations
- 2017Mechanism of Dynamic Recrystallization and Evolution of Texture in the Hot Working Domains of the Processing Map for Mg-4Al-2Ba-2Ca Alloycitations
- 2016Forging of cast Mg-3Sn-2Ca-0.4Al-0.4Si magnesium alloy using processing mapcitations
- 2015Comparative Study of Microstructure and Texture of Cast and Homogenized TX32 Magnesium Alloy After Hot Deformationcitations
- 2015Processing Map of AZ31-1Ca-1.5 vol.% Nano-Alumina Composite for Hot Workingcitations
- 2015Hot working mechanisms in DMD-processed versus cast AZ31-1 wt.% Ca alloycitations
- 2014Effect of silicon content on hot working, processing maps, and microstructural evolution of cast TX32-0.4Al magnesium alloycitations
- 2014A Study on the Hot Deformation Behavior of Cast Mg-4Sn-2Ca (TX42) Alloycitations
- 2014Effect of aluminum on microstructural evolution during hot deformation of TX32 magnesium alloycitations
- 2014Hot deformation mechanisms, microstructure and texture evolution in extruded AZ31–nano-alumina compositecitations
- 2014Hot forging of cast magnesium alloy TX31 using semi-closed die and its finite element simulationcitations
- 2014Investigation of hot workability behavior of as-cast Mg-5Sn-2Ca (TX52) magnesium alloy through processing mapcitations
- 2014Advanced Techniques to Evaluate Hot Workability of Materialscitations
- 2014Study of hot forging behavior of as-cast Mg-3Al-1Zn-2Ca alloy towards optimization of its hot workabilitycitations
- 2013Hot workability analysis with processing map and texture characteristics of as-cast TX32 magnesium alloycitations
- 2013Processing maps, microstructure evolution and deformation mechanisms of extruded AZ31-DMD during hot uniaxial compressioncitations
- 2013Microstructure and mechanical properties of as-cast Mg-Sn-Ca alloys and effect of alloying elementscitations
- 2013Effect of calcium addition on the hot working behavior of as-cast AZ31 a magnesium alloycitations
- 2013Compressive strength and hot deformation mechanisms in as-cast Mg-4Al-2Ba-2Ca (ABaX422) alloycitations
- 2012Deformation Microstructures and Textures of Cast Mg-3Sn-2Ca alloy under Uniaxial Hot Compression
- 2012Hot deformation behavior of Mg-2Sn-2Ca alloy in as-cast condition and after homogenizationcitations
- 2012Hot working mechanisms and texture development in Mg-3Sn-2Ca-0.4Al alloycitations
- 2012Hot Deformation Mechanisms in AZ31 Magnesium Alloy Extruded at Different Temperaturescitations
- 2012Effect of deformation conditions on microstructure and texture during compression of Mg-3Sn-2Ca-0.4Al-0.4Si alloy
- 2012Texture evolution during hot deformation processing of Mg-3Sn-2Ca-0.4Al alloy
- 2012Texture evolution during hot deformation processing of Mg-3Sn-2Ca-0.4Al alloycitations
- 2012Anisotropy of flow during isothermal forging of rolled AZ31B magnesium alloy rolled plate in three orthogonal directionscitations
- 2012Study of Microstructure and Texture of Hot-Deformed TXA321 Magnesium alloy
- 2011Anisotropy of flow during forging of rolled AZ31B plate in transverse directioncitations
- 2011Compressive strength and hot deformation behavior of TX32 magnesium alloy with 0.4% Al and 0.4% Si additionscitations
- 2011COMPRESSIVE STRENGTH AND HOT DEFORMATION BEHAVIOR OF TX32 MAGNESIUM ALLOY WITH 0.4% Al AND 0.4% Si ADDITIONScitations
- 2011Materials modeling and finite element simulation of isothermal forging of electrolytic coppercitations
- 2011Materials modeling and simulation of isothermal forging of rolled AZ31B magnesium alloycitations
- 2011Further evaluation of boric acid vis-à-vis other lubricants for cold forming applicationscitations
- 2011Hot working behavior and processing map of a γ-TiAl alloy synthesized by powder metallurgycitations
- 2010Effect of thermal and mechanical treatments on the hot working response of Mg-3Sn-1Ca alloycitations
- 2010Effect of aluminum addition on the strengthening and high temperature deformation behavior of Mg-3Sn-2Ca alloy
- 2010Effect of aluminum addition on the strengthening and high temperature deformation behavior of Mg-3Sn-2Ca alloy
- 2010Kinetics of hot deformation in Mg/Nano-Al2O3 compositecitations
- 2010Processing map and hot working mechanisms in a P/M TiAl alloy composite with in situ carbide and silicide dispersionscitations
- 2010High Temperature Deformation Mechanisms and Processing Map for Hot Working of Cast-Homogenized Mg-3Sn-2Ca Alloycitations
- 2010EFFECT OF ALUMINUM ADDITION ON THE STRENGTHENING AND HIGH TEMPERATURE DEFORMATION BEHAVIOR OF Mg-3Sn-2Ca ALLOY
- 2009Optimum parameters and rate-controlling mechanisms for hot working of extruded Mg-3Sn-1Ca alloycitations
- 2009Processing of a TiAl alloy by powder metallurgy and hot working
- 2009Hot workability and deformation mechanisms in Mg/nano-Al2O3 compositecitations
- 2009Effect of homogenization on the hot deformation behavior of cast AZ31 magnesium alloycitations
- 2009Mechanical alloying characteristics and thermal stability of Ti-Al-Si and Ti-Al-Si-C powderscitations
- 2008Processing maps for hot deformation of rolled AZ31 magnesium alloy platecitations
- 2008Hot working parameters and mechanisms in as-cast Mg-3Sn-1Ca alloycitations
- 2008Hot workability characteristics of cast and homogenized Mg-3Sn-1Ca alloycitations
- 2007High temperature deformation behaviour of a new magnesium alloycitations
- 2007High temperature deformation behaviour of a new magnesium alloycitations
- 2007Hot working, microstructure control and FE simulation of OFHC copper
- 2006Effect of crystallographic texture on the kinetics of hot deformation of rolled Mg-3Al-1Zn alloy platecitations
- 2004Kinetics of high-temperature deformation of polycrystalline OFHC copper and the role of dislocation core diffusioncitations
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article
Processing map and hot working mechanisms in a P/M TiAl alloy composite with in situ carbide and silicide dispersions
Abstract
A titanium aluminide alloy composite with in situ carbide and silicide dispersions has been synthesized by mixing 90% of matrix with elemental composition of 46Ti-46Al-4Nb-2Cr-2Mn and 10% precursor with composition 55Ti-27Al-12Si-6C prepared by mechanical alloying. The powder mixture was blended for 2h followed by hot isostatic pressing (HIP) at 1150°C for 4h under a pressure of 150MPa. In addition to TiAl alloy matrix, the microstructure of the HIP'ed billet showed a small volume fraction of Nb-rich intermetallic phase along with carbide and silicide dispersions formed in situ during HIP'ing. Cylindrical specimens from the HIP'ed billets were compressed at temperatures and strain rates in the ranges of 800-1050°C and 0.0001-1s<sup>-1</sup>. The flow curves exhibited flow softening leading to a steady-state flow at strain rates lower than 0.01s<sup>-1</sup> while fracture occurred at higher strain rates. The processing map developed on the basis of flow stress at different temperatures and strain rates revealed a safe window for hot working as 850-1025°C and 0.0001-0.001s<sup>-1</sup>. Kinetic analysis of the flow stress data yielded a stress exponent of 3.85 and an apparent activation energy of 440kJ/mol which is higher than that for self-diffusion of Al in γ TiAl. © 2010 Elsevier B.V.