Dr Leo Prakash

Research Highlights

1. Savarimuthu, S., Prakash, D., Thomas, S., Gandhi, T., & Prakash, L. (2018). DBU‐Mediated Intermolecular 5‐exo‐dig Cyclization of PropargylAlcohols and Carbon Disulfide to [1,3]‐Oxathiole‐2‐thiones. ChemistrySelect, 3(46), 13087-13090.

   https://doi.org/10.1002/slct.201802731, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa48077
2. Savarimuthu, S., Thankappan, H., Thomas, S., Prakash, D., & Prakash, L. (2018). Sodium Tertiary Pentoxide: A Mild and Efficient Base to Make C-C Bond between Acetylenes and Aldehydes (or) Ketones Producing Propargyl Alcohols. ChemistrySelect, 3(29), 8479-8482.

   https://doi.org/10.1002/slct.201801640, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa43524
3. Savarimuthu, S., Thomas, S., Prakash, D., Gandhi, T., & Prakash, L. (2016). LiOtBu Promoted 5-Exo-dig Cyclization of Propargyl Alcohols and Isocyanates for the Synthesis of Multisubstituted 3H-Oxazol-2-ones and Oxazolidin-2-ones. ChemistrySelect, 1(9), 2035-2039.

   https://doi.org/10.1002/slct.201600363, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa29003
4. Krishna, K., Prakash, L., Timár, G., Fitzner, A., Srivastava, D., Saibaba, N., Fonseca, J., Dey, G., & Preuss, M. (2016). The effect of loading direction and Sn alloying on the deformation modes of Zr: An in-situ neutron diffraction study. Materials Science and Engineering: A, 650, 497-509.

   https://doi.org/10.1016/j.msea.2015.10.047, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa24309
5. Fitzner, A., Prakash, L., Fonseca, J., Thomas, M., Zhang, S., Kelleher, J., Manuel, P., & Preuss, M. (2016). The effect of aluminium on twinning in binary alpha-titanium. Acta Materialia, 103, 341-351.

   https://doi.org/10.1016/j.actamat.2015.09.048, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa24179
6. Prakash, L., Preuss, M., Dahlbäck, M., & Fonseca, J. (2015). Microstructure and texture evolution during thermomechanical processing of β-quenched Zr. Acta Materialia, 88, 389-401.

   https://doi.org/10.1016/j.actamat.2014.12.033, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa21196

   http://www.sciencedirect.com/science/article/pii/S1359645414009501
7. Mani Krishna, K., Leo Prakash, D., Srivastava, D., Saibaba, N., Quinta da Fonseca, J., Dey, G., Preuss, M., & Prakash, L. (2015). Influence of Sn on Deformation Mechanisms During Room Temperature Compression of Binary Zr–Sn Alloys. Zirconium in the Nuclear Industry: 17th Volume, 138-158.

   https://doi.org/10.1520/STP154320130044, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa22347

   http://www.astm.org/SUBSCRIPTION/DIGITAL_LIBRARY/STP/PAGES/STP154320130044.htm
8. Antony Savarimuthu, S., Leo Prakash, D., Augustine Thomas, S., & Prakash, L. (2014). Nucleophilic substitution of propargyl alcohols with aliphatic alcohols, aliphatic amines and heterocycles catalyzed by 4-nitrobenzenesulfonic acid: A scalable and metal-free process. Tetrahedron Letters

   https://doi.org/10.1016/j.tetlet.2014.02.086, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17634
9. Fitzner, A., Leo Prakash, D., Quinta da Fonseca, J., Preuss, M., Thomas, M., Zhang, S., Kelleher, J., & Prakash, L. (2013). The Effect of Aluminium on Deformation and Twinning in Alpha Titanium: The 45° Case. Materials Science Forum, 765, 549-553.

   https://doi.org/10.4028/www.scientific.net/MSF.765.549, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17656
10. Leo Prakash, D., Honniball, P., Rugg, D., Withers, P., Quinta da Fonseca, J., Preuss, M., & Prakash, L. (2013). The effect of β phase on microstructure and texture evolution during thermomechanical processing of α+β Ti alloy. Acta Materialia, 61(9), 3200-3213.

    https://doi.org/10.1016/j.actamat.2013.02.008, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa15811

    http://www.sciencedirect.com/science/article/pii/S1359645413001262
11. Obasi, G., Moat, R., Leo Prakash, D., Kockelmann, W., Quinta da Fonseca, J., Preuss, M., & Prakash, L. (2012). In situ neutron diffraction study of texture evolution and variant selection during the α→β→α phase transformation in Ti–6Al–4V. Acta Materialia, 60(20), 7169-7182.

    https://doi.org/10.1016/j.actamat.2012.09.026, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa15868

    http://www.sciencedirect.com/science/article/pii/S1359645412006490
12. Obasi, G., Moat, R., Leo Prakash, D., Kockelmann, W., Quinta da Fonseca, J., Preuss, M., & Prakash, L. (2011). In-Situ Observation on the Influence of ß Grain Growth on Texture Evolution during Phase Transformation in Ti-6A-4V. Materials Science Forum, 702-703, 854-857.

    https://doi.org/10.4028/www.scientific.net/MSF.702-703.854, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17651
13. Vorster, W., Van Der Watt, M., Venter, A., Oliver, E., Leo Prakash, D., Korsunsky, A., & Prakash, L. (2011). Influence of Quenchant Hydrodynamics and Boiling Phase Incipient Temperature Shifts on Residual Stress Formation. Heat Transfer Engineering, 30(7), 564-573.

    https://doi.org/10.1080/01457630802594937, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17649
14. Leo Prakash, D., Ding, R., Moat, R., Jones, I., Withers, P., Fonseca, J., Preuss, M., & Prakash, L. (2010). Deformation twinning in Ti-6Al-4V during low strain rate deformation to moderate strains at room temperature. Materials Science and Engineering: A, 527(21-22), 5734-5744.

    https://doi.org/10.1016/j.msea.2010.05.039, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa15812

    http://www.sciencedirect.com/science/article/pii/S0921509310005514
15. Preuss, M., Quinta da Fonseca, J., Allen, V., Leo Prakash, D., Daymond, M., & Prakash, L. (2010). Twinning in structural material with a hexagonal close-packed crystal structure. The Journal of Strain Analysis for Engineering Design, 45(5), 377-390.

    https://doi.org/10.1243/03093247JSA624, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17648
16. Leo Prakash, D., Walsh, M., Maclachlan, D., Korsunsky, A., & Prakash, L. (2009). Crack growth micro-mechanisms in the IN718 alloy under the combined influence of fatigue, creep and oxidation. International Journal of Fatigue, 31(11-12), 1966-1977.

    https://doi.org/10.1016/j.ijfatigue.2009.01.023, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa15867

    http://www.sciencedirect.com/science/article/pii/S0142112309000504
17. Leo Prakash, D., Regener, D., Vorster, W., & Prakash, L. (2009). Effect of position on the tensile properties in high-pressure die cast Mg alloy. Journal of Alloys and Compounds, 470(1-2), 111-116.

    https://doi.org/10.1016/j.jallcom.2008.02.051, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17636
18. Leo Prakash, D., Regener, D., & Prakash, L. (2009). Effect of long term annealing on the microstructure and tensile properties of hpdc AZ91 Mg alloy. Journal of Alloys and Compounds, 467(1-2), 271-277.

    https://doi.org/10.1016/j.jallcom.2007.12.046, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17637
19. Leo Prakash, D., Regener, D., Vorster, W., & Prakash, L. (2008). Effect of long term annealing on the microstructure of hpdc AZ91 Mg alloy: A quantitative analysis by image processing. Computational Materials Science, 43(4), 759-766.

    https://doi.org/10.1016/j.commatsci.2008.01.040, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17638
20. Leo Prakash, D., Regener, D., & Prakash, L. (2008). Micro–macro interactions and effect of section thickness of hpdc AZ91 Mg alloy. Journal of Alloys and Compounds, 464(1-2), 133-137.

    https://doi.org/10.1016/j.jallcom.2007.09.134, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17639
21. Leo Prakash, D., Regener, D., Vorster, ., & Prakash, L. (2008). Microscopic failure modes of hpdc AZ91HP magnesium alloy under monotonic loading. Materials Science and Engineering: A, 488(1-2), 303-310.

    https://doi.org/10.1016/j.msea.2007.11.011, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17640
22. Leo Prakash, D., Regener, D., & Prakash, L. (2008). Quantitative characterization of Mg17Al12 phase and grain size in HPDC AZ91 magnesium alloy. Journal of Alloys and Compounds, 461(1-2), 139-146.

    https://doi.org/10.1016/j.jallcom.2007.07.017, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17641
23. Leo Prakash, D., Vorster, W., Zhang, S., Korsunsky, A., & Prakash, L. (2008). A Study of Residual Elastic Strain Distribution in an AZ91 Mg Alloy Bar Loaded in Four Point Bending. Materials Science Forum, 571-572, 113-118.

    https://doi.org/10.4028/www.scientific.net/MSF.571-572.113, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17652
24. Prakash, L. (2008). Microstructural Influences on Tensile Properties of hpdc AZ91 Mg Alloy. Micro-Macro-interaction In Structured media and Particle Systems (pp. 19-31). Springer

    https://doi.org/10.1007/978-3-540-85715-0_2, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa22348

    http://link.springer.com/chapter/10.1007%2F978-3-540-85715-0_2
25. Korsunsky, A., Song, X., Belnoue, J., Leo Prakash, D., Dini, ., Walsh, M., & Prakash, L. (2007). Modeling Crack Initiation and Propagation in Nickel Base Superalloys. Key Engineering Materials, 348-349, 53-56.

    https://doi.org/10.4028/www.scientific.net/KEM.348-349.53, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17653
26. Leo Prakash, D., Regener, D., & Prakash, L. (2006). Quantitative Characterization of Pore Arrangement in Pore Bands in Pressure Die Cast AZ91 Magnesium Alloy by Image Processing. Materials Science Forum, 514-516, 1477-1482.

    https://doi.org/10.4028/www.scientific.net/MSF.514-516.1477, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17655
27. Leo Prakash, D., Regener, D., & Prakash, L. (2005). 2D Quantitative Characterization of Microstructural Inhomogeneities in the Pressure Die Cast AZ91 Magnesium Alloy. Practical Metallography, 42(11), 555-575.

    https://doi.org/10.3139/147.100284, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17650
28. Leo Prakash, D., Prasanna, B., Regener, D., & Prakash, L. (2005). Computational microstructure analyzing technique for quantitative characterization of shrinkage and gas pores in pressure die cast AZ91 magnesium alloys. Computational Materials Science, 32(3-4), 480-488.

    https://doi.org/10.1016/j.commatsci.2004.09.017, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa17642
29. Obasi, G., Birosca, S., Prakash, D., Fonseca, J., Preuss, M., Birosca, S., & Prakash, L. (2012). The influence of rolling temperature on texture evolution and variant selection during α→β→α phase transformation in Ti–6Al–4V. Acta Materialia, 60(17), 6013-6024.

    https://doi.org/10.1016/j.actamat.2012.07.025, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa12738
30. Simm, T., Das, Y., Forsey, A., Gungor, S., Fitzpatrick, M., Prakash, L., Moat, R., Birosca, S., Fonseca, J., & Perkins, K. (2020). The τ-plot, a multicomponent 1-D pole figure plot, to quantify the heterogeneity of plastic deformation. Materials Characterization, 160, 110114

    https://doi.org/10.1016/j.matchar.2019.110114, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53163
31. Savarimuthu, S., Prakash, L., Thomas, S., Gandhi, T., & Bera, M. (2020). Highly Z-selective synthesis of 1,3-oxathiol-2-ylidenes and 4-methylene-oxazolidine-2-thiones via atom-specific 5-exo-dig cyclization of propargyl alcohol with isothiocyanate. Organic & Biomolecular Chemistry, 18(18), 3552-3562.

    https://doi.org/10.1039/d0ob00083c, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa54303

All Research

• Effect of Shear Strain on Metal Deformation and Microstructural Evolution (current)

  PhD

  Other supervisor: Dr Amit Das

• EG-187 Engineering Analysis for Materials 1

  To provide a grounding in engineering analysis methods for materials students. The module will cover the most important analytical functions and methods used in engineering and will relate these to common materials-related examples. The module will ensure the required grounding in methods and techniques for those who have not previously covered this area, or who are returning after a gap. It will also provide opportunities for extension to more complicated examples for those who have more prior experience.

• EG-188 Engineering Analysis for Materials 2

  To provide additional grounding in engineering analysis methods for materials students. The module will cover the most important analytical tools and methods used in engineering and will relate these to common materials-related examples. The module will ensure the required grounding in methods and techniques for those who have not previously covered this area, or who are returning after a gap. It will also provide opportunities for extension to more complicated examples for those who have more prior experience.

• EG-391 Microstructure and Characterisation

  This module provides an in-depth coverage of quantitative metallographic techniques, and how they can be applied to characterise the microstructures in advanced metallic alloys.