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    Browsing Materials Engineering (MatEng) by Advisor "Abinandanan, T A"

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      • Co-continuous microstructures through spinodal decomposition in ternary systems: A phase field study 

        Kumar, Naveen
        We have studied spinodal decomposition which leads to a three-phase microstructure in ternary alloys using computer simulations based on the ternary Cahn-Hilliard equations. All the alloys we have studied are in the same ...
      • Destabilisation and Failure of Cylindrical Nanopores : A Phase Field Study 

        Joshi, Chaitanya (2017-11-28)
        Phase field models have played an important role in shaping our understanding of a variety of micro structural phenomena in materials. Their attractive features include (a) their ability to capture instabilities in ...
      • Effect Of Atomic Mobility In The Precipitate Phase On Coarsening : A Phase Field Study 

        Sarkar, Suman (2010-10-28)
        In this thesis, we have used a phase field model for studying the effect of atomic mobility inside the precipitate phase on coarsening behaviour in two dimensional (2D) systems. In all the available coarsening theories, ...
      • Evolution Of Multivariant Microstuctures With Anisotropic Misfit 

        Bhattacharyya, Saswata (2009-06-17)
        Many technologically important alloys such as Ni base superalloys and Ti-Al base alloys benefit from the precipitation of an ordered β phase from a disordered α matrix. When the crystallographic symmetry of the β phase is ...
      • Mean Field Study Of Point Defects In B2-NiAl 

        Gururajan, M P (Indian Institute of Science, 2005-12-22)
        Point defects control many properties of technological importance in intermetallic compounds such as atomic diffusion, creep, hardness, mechanical properties and sintering. Farther, since intermetallic compounds are ...
      • Microstructure Development During Laser And Electron Beam Welding Of Ti/Ni Dissimilar Joints 

        Chatterjee, Subhradeep (2009-09-02)
        Fusion welding of dissimilar metals constitutes a crucial processing stage in a variety of applications, and the use of high energy beams (HEB) like lasers and electron beams for such welding applications has several ...
      • Novel L12 precipitate hardened Co-base alloys 

        Verma, Shailendra Kumar
        Conventional cobalt base superalloys relied on solid-solution and carbide precipitate based strengthening. They lacked high temperature (more than 800 ˚C) creep strength as compared to Ni-base superalloys which are ...
      • Precipitate Growth and Coarsening in Ternary Alloys 

        Bhaskar, Mithipati Siva (2018-08-20)
        We have studied precipitate growth and coarsening in ternary alloys using two different phase held models. The first one is a ternary extension of the classical Cahn-Hilliard (C-H) model in which both the phases are ...
      • Precipitate Growth Kinetics : A Phase Field Study 

        Mukherjee, Rajdip (2011-08-30)
      • Study Of Surface Ordering And Disordering 

        Maiti, Subhankar (2012-01-13)
      • Symmetry-Breaking Transitions In Equilibrium Shapes Of Coherent Precipitates 

        Sankarasubramanian, R (Indian Institute of Science, 2005-12-22)
        We present a general approach for determining the equilibrium shape of isolated, coherent, misfitting particles by minimizing the sum of elastic and interfacial energies using a synthesis of finite element and optimization ...
      • Theoretical and Numerical Study of Microstructure Formation in Multi-component Alloys 

        Lahiri, Arka
        The length scale, composition, orientation of the phases in a material constitutes its microstructure. In order to appreciate the whole gamut of microstructures observed in multi-component alloys, an identification of the ...

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