Satyam Suwas

Indian Institute of Science Bangalore

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Kaushik Chatterjee

Indian Institute of Science Bangalore

László S. Tóth

Laboratoire d'Étude des Microstructures

N.P. Gurao

Indian Institute of Technology Kanpur

Rajib Kalsar

Pacific Northwest National Laboratory

Gyan Shankar

Oak Ridge National Laboratory

Shibayan Roy

Indian Institute of Technology Kharagpur

Nitish Bibhanshu

Indian Institute of Technology Ropar

Werner Skrotzki

TU Dresden

R.K. Sabat

Institute of Minerals and Materials Technology

Sumit Bahl

Oak Ridge National Laboratory

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Indian Institute of Science Bangalore

266

Indian Institute of Technology Kanpur

Centre National de la Recherche Scientifique

Indian Institute of Technology Madras

Indian Institute of Technology Indore

Indian Institute of Technology Bombay

Bangalore University

Bhabha Atomic Research Centre

Indian Institute of Technology Kharagpur

Banaras Hindu University

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Effect of Stacking Fault Energy on Microstructure and Texture Evolution during the Rolling of Non-Equiatomic CrMnFeCoNi High-Entropy Alloys

Crystals (2020)

G. Dan Sathiaraj Rajib Kalsar Satyam Suwas Werner Skrotzki

The evolution of microstructure and texture in three non-equiatomic CrMnFeCoNi high-entropy alloys (HEAs) with varying stacking fault energy (SFE) has been studied in up to 90% rolling reductions at both room and cryogenic temperature. All the HEAs deform by dislocation slip and additional mechanical twinning at intermediate and shear banding at high rolling strains. The microstructure is quite heterogeneous and, with strain, becomes highly fragmented. During rolling, a characteristic brass-type texture develops. Its strength increases with a decreasing SFE and the lowering of the rolling temperature. The texture evolution is discussed with regard to planar slip, mechanical twinning, and shear banding.

Stacking-fault energy

High-Entropy Alloys

10.3390/cryst10070607

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Citations (9)

Surface-modified WE43 magnesium alloys for reduced degradation and superior biocompatibility

In vitro models (2022)

Vignesh K. Manivasagam M. Sankar Caterina Bartomeu Garcia Jithin Vishnu Kaushik Chatterjee

Biocompatibility

Surface Modification

10.1007/s44164-022-00016-x

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Citations (8)

Ultra-fine Grain Materials by Severe Plastic Deformation: Application to Steels

Springer eBooks (2009)

Satyam Suwas Ayan Bhowmik Somjeet Biswas

Superplasticity

Severe Plastic Deformation

Texture (cosmology)

Grain boundary strengthening

10.1007/978-1-84882-454-6_19

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Citations (17)

Non-equilibrium microstructure, crystallographic texture and morphological texture synergistically result in unusual mechanical properties of 3D printed 316L stainless steel

Additive manufacturing (2019)

Sumit Bahl Sumeet Mishra K.U. Yazar Immanuel Raju Kola Kaushik Chatterjee

Texture (cosmology)

Ductility (Earth science)

Hardening (computing)

Strain hardening exponent

Selective Laser Melting

10.1016/j.addma.2019.04.016

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Citations (167)

Evolution of texture and its influence on the failure of components in some aluminium alloys

IOP Conference Series Materials Science and Engineering (2015)

Ramesh Narayanan Parameswaran Satyam Suwas Sinha Parmeshwar Prasad Ranganathan Srinivasa

This paper describes the evolution of crystallographic texture in three of the most important high strength aluminium alloys, viz., AA2219, AA7075 and AFNOR7020 in the cold rolled and artificially aged condition. Bulk texture results were obtained by plotting pole figures from X-ray diffraction results followed by Orientation Distribution Function (ODF) analysis and micro-textures were measured using EBSD. The results indicate that the deformation texture components Cu, Bs and S, which were also present in the starting materials, strengthen with increase in amount of deformation. On the other hand, recrystallization texture components Goss and Cube weaken. The Bs component is stronger in the deformation texture. This is attributed to the shear banding.

Recrystallization (geology)

Texture (cosmology)

10.1088/1757-899x/82/1/012110

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Citations (0)

Effect of niobium interlayer in dissimilar friction stir welding of aluminum to titanium

Materials Characterization (2018)

Amlan Kar S.K. Choudhury Satyam Suwas Satish V. Kailas

Friction Stir Welding

Ductility (Earth science)

Brittleness

Recrystallization (geology)

Dynamic Recrystallization

10.1016/j.matchar.2018.09.007

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Citations (61)

Microstructure and Texture in Steels

Springer eBooks (2009)

Arunansu Haldar Satyam Suwas Debotosh Bhattacharjee

Texture (cosmology)

10.1007/978-1-84882-454-6

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Citations (174)

In-situ study of tensile deformation behaviour of medium Mn TWIP/TRIP steel using synchrotron radiation

Materials Science and Engineering A (2022)

Rajib Kalsar Soheil Sanamar Norbert Schell H.‐G. Brokmeier Rajib Saha

Twip

10.1016/j.msea.2022.144013

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Citations (13)

Establishing the microstructure-strengthening correlation in severely deformed surface of titanium

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics (2018)

Sumit Bahl Bhavya Tulasi Aleti Satyam Suwas Kaushik Chatterjee

Surface nanostructuring of engineering materials can be utilised to enhance materials performance for various applications. The aim of this work was to investigate the evolution of microstructure and its correlation with strengthening mechanisms in nanocrystalline commercially pure titanium (cp-Ti) produced by surface mechanical attrition treatment (SMAT). The individual contributions of dislocation slip and twining as the deformation mechanisms during SMAT have been quantified using X-ray line profile analysis and corroborated with transmission electron microscopy and electron backscattered diffraction techniques. It is found that twining is operative only in the early stages of deformation. The absence of twin–twin intersections suggests that twining is not directly responsible for the initial refinement of grain size. Dislocation slip is the major deformation mode, which leads to the refinement of the microstructure by forming low-angle lamellar boundaries. Continuous dynamic recrystallisation is demonstrated to be the mechanism of nanocrystallisation in cp-Ti using detailed microscopic analysis. In contrast to previous studies, which have neglected the contribution of Taylor strengthening, it is observed that a combination of Hall–Petch and Taylor relationships can explain the strength only if separate set of parameters K (Hall–Petch constant) and α (geometrical factor in Taylor relationship) are used for the nanocrystalline surface and severely deformed sub-surface of cp-Ti. Taken together, this work provides new insights into the underlying mechanisms for engineering nanocrystalline materials.

Nanocrystalline material

Deformation mechanism

Grain boundary strengthening

Severe Plastic Deformation

10.1080/14786435.2018.1478141

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Citations (8)

Mechanisms controlling fracture toughness of additively manufactured stainless steel 316L

International Journal of Fracture (2021)

Deepak Kumar Suyog Jhavar Abhinav Arya Konda Gokuldoss Prashanth Satyam Suwas

Austenitic stainless steel

Selective Laser Melting

Ductility (Earth science)

Digital image correlation

10.1007/s10704-021-00574-3

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Citations (36)