Mainak Saha
@samurai.nims.go.jp
Postdoctoral researcher, Nanostructure Analysis Group, Research Centre for Magnetic and Spintronic Materials
National Institute for Materials Science
I have recently completed my PhD in the Dept of Metallurgical and Materials Engineering at IIT Madras. My doctoral research was primarily based on understanding the stability of different phases and correlating the same with the mechanical response of Ni-alloyed Fe-Mn-Al-C steels with high specific strength. I have previously, been an undergraduate student of Metallurgical and Materials Engineering at NIT Durgapur. I am currently pursuing my postdoctoral research at Nanostructure Analysis group, Research Centre for Magnetic and Spintronic Materials, National Institute for Materials Science (Japan) since October 2023.
EDUCATION
July 2014-July 2018: B.Tech (Metallurgical and Materials Engineering NIT Durgapur)
July: 2018- July 2023: M.S. + Ph.D (Metallurgical and Materials Engineering), IIT Madras
RESEARCH, TEACHING, or OTHER INTERESTS
Metals and Alloys, Materials Chemistry
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Jishnu J. Bhattacharyya, Seth Faberman, Aaron Sullivan, Mainak Saha, Taisuke Sasaki, and Sean R. Agnew
Elsevier BV
Baptiste Gault, Aparna Saksena, Xavier Sauvage, P. Bagot, L. S. Aota, Jonas Arlt, L. Belkacemi, T. Boll, Yi-Sheng Chen, Luke Daly,et al.
As hydrogen is touted as a key player in the decarbonization of modern society, it is critical to enable quantitative hydrogen (H) analysis at high spatial resolution and, if possible, at the atomic scale. H has a known deleterious impact on the mechanical properties (strength, ductility, toughness) of most materials that can hinder their use as part of the infrastructure of a hydrogen-based economy. Enabling H mapping including local hydrogen concentration analyses at specific microstructural features is essential for understanding the multiple ways that H affect the properties of materials including embrittlement mechanisms and their synergies. In addition, spatial mapping and quantification of hydrogen isotopes is essential to accurately predict tritium inventory of future fusion power plants thus ensuring their safe and efficient operation. Atom probe tomography (APT) has the intrinsic capability to detect H and deuterium (D), and in principle the capacity for performing quantitative mapping of H within a material's microstructure. Yet, the accuracy and precision of H analysis by APT remain affected by complex field evaporation behavior and the influence of residual hydrogen from the ultrahigh vacuum chamber that can obscure the signal of H from within the material. The present article reports a summary of discussions at a focused workshop held at the Max-Planck Institute for Sustainable Materials in April 2024. The workshop was organized to pave the way to establishing best practices in reporting APT data for the analysis of H. We first summarize the key aspects of the intricacies of H analysis by APT and then propose a path for better reporting of the relevant data to support interpretation of APT-based H analysis in materials.
Yafei Wang, Jianwei Tang, Hiro Fujihara, Nozomu Adachi, Yoshikazu Todaka, Yuantao Xu, Mainak Saha, Taisuke Sasaki, Kazuyuki Shimizu, Kyosuke Hirayama,et al.
Elsevier BV
G. Vijayaragavan, D. Prabhu, M.B. Ponnuchamy, K.R.S. Preethi Meher, Ravi Gautam, Mainak Saha, R. Gopalan, and K.G. Pradeep
Elsevier BV
Mainak Saha and Manab Mallik
Elsevier
Mainak Saha, M. B. Ponnuchamy, M. Sadhasivam, Chinmoy Mahata, G. Vijayaragavan, Karanam Gururaj, K. Suresh, N. Chandrasekaran, D. Prabhu, Krushna Kumbhar,et al.
Springer Science and Business Media LLC
K. Gururaj, Mainak Saha, Sumit Kumar Maurya, Rajat Nama, A. Alankar, M.B. Ponnuchamy, and K.G. Pradeep
Elsevier BV
Mainak Saha and Manab Mallik
Elsevier
Mainak Saha
Informa UK Limited
ABSTRACT Creep deformation in single-phase ɤ-TiAl alloys manufactured using different processing techniques has been an extensively studied topic owing to the high specific strength and excellent creep properties of these alloys at temperatures between 760 and 1000°C. In addition, these lightweight and creep-resistant alloys are being presently considered as replacements to the comparatively heavier Ni-based superalloys for application in the low-pressure turbine blades of the next-generation gas turbine engines. However, there is limited information on the tensile creep deformation behaviour and creep life of ɤ-TiAl alloys at 832°C where these alloys have been reported not to exhibit steady-state creep. To this end, the present work revisits the work on understanding the tensile creep deformation behaviour of wrought single-phase ɤ-TiAl alloy by Saha [1] and is aimed to develop an understanding of the tensile creep deformation behaviour at 832°C and the influence of creep activation energy on the creep life of wrought single-phase ɤ-TiAl alloy for stress levels of 69.4 and 103.4 MPa at 832°C using Monkman–Grant [2] approach.
Mainak Saha and Manab Mallik
Springer Science and Business Media LLC
Mainak Saha
Elsevier BV