J Ghosh
Articles written in Bulletin of Materials Science
Volume 29 Issue 4 August 2006 pp 385-390 Alloys
J Ghosh S K Chattopadhyay A K Meikap S K Chatterjee
The effects of deformation and the transition of microstructural defect states with the interchange of solvent and solute in Ti–Zr and Zr–Ti alloys of six different compositions and Zr–Sn alloys in three different compositions have been investigated by X-ray diffraction line profile analysis. The detailed analysis of the X-ray powder diffraction line profiles was interpreted by Fourier line shape analysis using modified Rietveld method and Warren–Averbach method taking silicon as standard. Finally the microstructural parameters such as coherent domain size, microstrains within domains, faulting probability and dislocation density were evaluated from the analysis of X-ray powder diffraction data of Zr base Sn, Ti and Ti base Zr alloys by modified Rietveld powder structure refinement. This analysis confirms that the growth fault, 𝛽, is totally absent or negligibly present in Zr–Ti, Ti–Zr and Zr–Sn alloy systems, because the growth fault, 𝛽, has been observed to be either negative or very small for these alloy systems. This analysis also revealed that the deformation fault, 𝛼, has significant presence in titanium-base zirconium alloy systems but when zirconium content in the matrix goes on increasing beyond 50%, this faulting behaviour suffers a drastic transition and faulting tendency abruptly drops to a level of negligible presence or zero. This tendency has also been observed in Zr–Sn alloys signifying high stacking fault energy. Therefore, Zr and Zr-base alloys having high stacking fault energy can be used as hard alloys in nuclear technology at high temperature.
Volume 30 Issue 5 October 2007 pp 447-454 Alloys and Steels
Study of microstructure in vanadium–palladium alloys by X-ray diffraction technique
J Ghosh S K Chattopadhyay A K Meikap S K Chatterjee P Chatterjee
Present study considers microstructural characterization of vanadium-based palladium (V–Pd) alloys, which are widely used in marine environment due to their high corrosion resistance. The X-ray diffraction line profile analysis (XRDLPA) have been used to assess the microstructure in body centred cubic (
Volume 31 Issue 2 April 2008 pp 197-197 Erratum
Study of microstructure in vanadium–palladium alloys by X-ray diffraction technique
J Ghosh S K Chattopadhyay A K Meikap S K Chatterjee P Chatterjee
Volume 45, 2022
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Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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