School of Engineering

Staff Profile

Dr Hemantha Yeddu

Lecturer in Mechanical Engineering

Background

Qualifications

2012: PhD in Materials Science from KTH Royal Institute of Technology, Sweden.

2004: Master of Science in Materials Science and Engineering from KTH Royal Institute of Technology, Sweden.

2002: Bachelor's degree in Mechanical Engineering from Nagarjuna University, India. 


Work experience

2016 - Till date: Lecturer (Assistant Professor), Newcastle University, UK.

2015 - 2016: Senior Researcher, Technical University of Denmark, Denmark.

2012 - 2015: Postdoctoral Research Associate, Los Alamos National Laboratory, Los Alamos, USA.

2004 - 2005: Research Engineer, Outokumpu Stainless AB, Avesta, Sweden.


Areas of expertise

Computational Materials Engineering 

Phase-field method

Metallurgy

Modelling of microstructure, phase transformations and plasticity

Predicting the processing-structure-property-performance relations of engineering materials


Google Scholar: Click here.

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Invited talks

  1. “Mesoscale modeling of martensitic transformations in engineering materials”, at Materials Center Leoben (MCL), Austria, November 2015.
  2. “Martensitic transformations in engineering materials – A phase-field study”, at CHiMaD, Northwestern University, IL, USA, October 2014.
  3. “Mesoscale modeling of the martensitic transformations coupled with plasticity in engineering materials”, at SES 2014, West Lafayette, IN, USA, October 2014.
  4. “Martensitic transformations in steels - A 3D phase field study”, presented at TMS 2014, San Diego, USA, February 2014.
  5. “Martensitic transformations in steels - A phase field study”, at WMG, University of Warwick, Coventry, UK, January 2014.
  6. “Martensitic transformations in steels - A 3D phase field study”, at The University of Manchester, Manchester, UK, April 2012.
  7. “Role of Plasticity during martensitic microstructure evolution in steels: A 3D phase field study”, at Plasticity 2012, San Juan, PR, USA, January 2012.
  8. “Phase Transformations in Materials – A mesoscale study on steels using phase-field approaches”, Los Alamos National Laboratory, Los Alamos, USA, January 2012.


Other conference presentations and colloquiums

    1. "Mesoscale modeling of martensitic transformations in engineering materials", at Department of Mechanical Engineering, DTU-Technical University of Denmark, September 2015.
    2. “Shock-induced martensitic transformations in steels – A 3D phase-field study”, at USNCCM 2013, Raleigh, NC, USA, July 2013.
    3. “Effect of martensite nucleus potency on the martensitic transformation in steels: A Phase-field study”, presented at ICOMAT 2011, Osaka, Japan, September 2011. 
    4. "3D modeling of martensitic transformations in steels by integrating thermodynamics, phase-field modeling and experiments", presented at ICME 2011, Seven Springs, PA, USA, July 2011. 
    5. “Physical parameters determination from 3D phase-field simulations of martensitic transformations in steels”, presented at TMS 2011, San Diego, USA, February 2011.
    6. “3D Phase-field modeling of martensitic microstructure evolution in steels”, at PTM 2010, Avignon, France, June 2010.


    Professional services

    • Journal Reviewer for: Nature Communications; Acta Materialia; Scripta Materialia; International Journal of Plasticity; Journal of Materials Science; Computational Materials Science; Applied Physics Letters; Metallurgical and Materials Transactions A; Journal of Crystals; Physical Review E
    • Grant proposal reviewer for National Science Centre, Poland.
    • Session Chair: TMS 2014, San Diego, USA, February 2014.

    Research

    • Research expertise: Modelling of microstructure evolution in engineering materials; Solid-state phase transformations, especially martensitic transformations; Effect of plasticity on phase transformations and microstructure; Phase-field modelling.
    • Areas of interest: Metallurgy; Materials processing; Plasticity; Solidification; Computational materials engineering; Modelling of fracture and fatigue properties of engineering components, e.g. gears.
    • Materials of interest: Steels and metallic alloys based on zirconium, titanium, aluminium, nickel; shape memory alloys; ceramics, bio-materials.
    • Materials processing methods of interest: Continuous Casting, heat treatments, novel thermo-mechanical processes, additive manufacturing, shock and high pressure deformations.
    • Modelling approaches: Phase-field method, crystal plasticity approaches, combining phase-field and crystal plasticity approaches, Finite Element Modelling, Phenomenological modelling.

    Teaching

    MEC8052: Manufacturing, Materials and Processes (Module Leader)

    MEC2001: Materials Science II (Module Leader)

    MEC1012: Mechanical Engineering and Professional Skills I

    MEC3018: Design for Industry

    MEC8095: MSc Projects

    MEC3098: Mechanical Engineering Project (B.Eng. projects)


    Publications

    • Razumovskiy VI, Yeddu HK, Spitaler J. Effect of carbon on elastic properties and microstructure of maraging steel: First-principles and phase-field study. Computational Materials Science 2019, 162, 1-11.
    • Yeddu HK. Phase-field modeling of austenite grain size effect on martensitic transformation in stainless steels. Computational Materials Science 2018, 154, 75-83.
    • Yeddu HK, Shaw BA, Somers MAJ. Effect of thermal cycling on martensitic transformation and mechanical strengthening of stainless steels - A phase-field study. Materials Science and Engineering A 2017, 690, 1-5.
    • Yeddu HK, Zong H, Lookman T. Alpha-omega and omega-alpha phase transformations in zirconium under hydrostatic pressure: A 3D mesoscale study. Acta Materialia 2016, 102, 97-107.
    • Yeddu HK, Lookman T. Phase-field modeling of the beta to omega phase transformation in Zr-Nb alloys. Materials Science and Engineering: A 2015, 634, 46-54.
    • Yeddu HK, Lookman T, Borgenstam A, Ågren J, Saxena A. Martensite formation in stainless steels under transient loading. Materials Science and Engineering A 2014, 608, 101-105.
    • Yeddu HK, Lookman T, Saxena A. Reverse phase transformation of martensite to austenite in stainless steels – A 3D phase-field study. Journal of Materials Science 2014, 49(10), 3642-3651.
    • Yeddu HK, Lookman T, Saxena T. The simultaneous occurrence of martensitic transformation and reversion of martensite. Materials Science and Engineering A 2014, 594, 48-51.
    • Yeddu HK, Borgenstam A, Ågren J. Effect of embryo potency on the martensitic transformation in steels - A 3D phase-field study. Journal of Alloys and Compounds 2013, 577S, S141-S146.
    • Yeddu HK, Lookman T, Saxena A. Strain-induced martensitic transformations in steels - A 3D phase-field study. Acta Materialia 2013, 61, 6972-6982.
    • Yeddu HK, Borgenstam A, Ågren J. Stress-assisted martensitic transformations in Steels - A 3D phase-field study. Acta Materialia 2013, 61, 2595-2606.
    • Yeddu HK, Borgenstam A, Hedström P, Ågren J. A phase-field study of the physical concepts of martensitic transformations in steels. Materials Science and Engineering A 2012, 538, 173-181.
    • Yeddu HK. Martensitic Transformations in Steels – A 3D Phase-field study. Stockholm, Sweden: KTH Royal Institute of Technology, 2012.
    • Yeddu HK, Razumovskiy VI, Borgenstam A, Korzhavyi P, Ruban A, Ågren J. Multi-length scale modeling of martensitic transformations in stainless steels. Acta Materialia 2012, 60, 6508-6517.
    • Malik A, Yeddu HK, Amberg G, Ågren J, Borgenstam J. Three dimensional elasto-plastic phase field simulation of martensitic transformation in polycrystal. Materials Science and Engineering A 2012, 556, 221-232.
    • Yeddu HK, Malik A, Ågren J, Amberg G, Borgenstam A. Three dimensional Phase Field Modeling of Martensitic Microstructure Evolution in Steels. Acta Materialia 2012, 60, 1538-1547.
    • Yeddu HK, Ågren J, Borgenstam A. 3D Phase field modeling of martensitic microstructure evolution in steels. Solid State Phenomena 2011, 172-174, 1066-1071.
    • Yeddu HK. Effect of mould oscillation parameters on oscillation mark formation in continuous cast steels. Stockholm, Sweden: Division of Casting, KTH Royal Institute of Technology, 2004.
    • Yeddu HK, Lookman T, Saxena A. Martensitic transformations in steels - A 3D phase field study. In: TMS 2014 143rd Annual Meeting & Exhibition. 2014, San Diego, CA, USA: Springer.
    • Yeddu HK, Lookman T, Saxena A. Mesoscale modeling of the martensitic transformations coupled with plasticity in engineering materials. In: Society of Engineering Science 51st Annual Technical Meeting. 2014, Purdue University, West Lafayette, IN, USA.
    • Yeddu HK, Lookman T, Saxena A. Shock-induced martensitic transformations in steels – A 3D phase-field study. In: 12th U.S. National Congress on Computational Mechanics (USNCCM12). 2013.
    • Yeddu HK, Borgenstam A, Hedstrom P, Agren J. Phase Transformations in Materials – A mesoscale study on steels using phase-field approaches. In: Plasticity 2012. 2012, San Juan, PR, USA.
    • Yeddu HK, Borgenstam A, Agren J. 3D modeling of martensitic transformations in steels by integrating thermodynamics, phase-field modeling and experiments. In: 1st World Congress on Integrated Computational Materials Engineering, ICME 2011. 2011, Seven Springs, PA, USA.
    • Yeddu HK, Borgenstam A, Agren J. Effect of martensite nucleus potency on the martensitic transformation in steels: A Phase-field study. In: International Conference on Martensitic Transformations (ICOMAT 2011). 2011.
    • Yeddu HK, Borgenstam A, Agren J. Physical parameters determination from 3D phase-field simulations of martensitic transformations in steels. In: TMS 2011 Annual Meeting & Exhibition. 2011, San Diego, CA, USA.
    • Yeddu HK, Agren J, Borgenstam A. 3D Phase-field modeling of martensitic microstructure evolution in steels. In: Solid-to-Solid Phase Transformation in Inorganic Materials (PTM 2010). 2010, Avignon, France.