Institution
Defence Metallurgical Research Laboratory
Facility•Hyderabad, India•
About: Defence Metallurgical Research Laboratory is a facility organization based out in Hyderabad, India. It is known for research contribution in the topics: Microstructure & Alloy. The organization has 1208 authors who have published 2662 publications receiving 51663 citations.
Topics: Microstructure, Alloy, Ultimate tensile strength, Creep, Coercivity
Papers published on a yearly basis
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29 Jul 2014-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this paper, a combined set of thermo-mechanical steps recommended for high strength beta Ti alloy are homogenization, deformation, recrystallization, annealing and ageing steps in sequence.
Abstract: A combined set of thermo-mechanical steps recommended for high strength beta Ti alloy are homogenization, deformation, recrystallization, annealing and ageing steps in sequence. Recrystallization carried out above or below beta transus temperature generates either beta annealed (lath type morphology of alpha) or bimodal (lath+globular morphology of alpha) microstructure. Through variations in heat treatment parameters at these processing steps, wide ranges of length scales of features have been generated in both types of microstructures in a near beta Ti alloy, Ti-5Al-5Mo-5V-3Cr (Ti-5553). 0.2% Yield strength (YS) has been correlated to various microstructural features and associated heat treatment parameters. Relative importance of microstructural features in influencing YS has been identified. Process parameters at different steps have been identified and recommended for attaining different levels of YS for this near beta Ti alloy. (C) 2014 Elsevier B.V. All rights reserved.
56 citations
TL;DR: In this paper, the authors derived the elastic properties of the alloys Ti3AlC and T i3AlN from the first-principles total energy calculations based on the full-potential linear muffin-tin Orbital (FP-LMTO) method.
Abstract: Elastic properties of the alloys Ti3AlC and T i3AlN are derived from the first-principles total energy calculations based on the full-potential linear muffin-tin Orbital (FP-LMTO) method. From the computed elastic constants, theoretical values of Young's modulus, shear modulus, Poisson's ratio, sound velocities and Debye temperature are evaluated. By analysing the ratio between the bulk and shear moduli, it is found that Ti3AlN is ductile in nature, whose ductility is expected to be greater than that of Ti3Al, whereas T i3AlC is found to be brittle. The site-projected density of states and the charge density plots have been used to analyse the chemical bonding between the Ti6N and T i6C cluster and the surrounding metallic lattice of Al atoms. This further reveals that the strong covalent nature of Ti-C bonds in Ti3AlC, together with the high Young, shear and bulk moduli, make the compound more brittle than Ti3AlN.
56 citations
TL;DR: In this article, the evolution of structure and magnetic properties were systematically investigated in milled powders as well as in SPS samples, and a maximum coercivity of 8.9 kOe was achieved in spark plasma sintered SmCo 5 + 5 W% Fe sample.
56 citations
TL;DR: In this article, the authors carried out a systematic analysis of the grain size dependent structural, ferroelectric, piezoelectric and high temperature electrical conduction behavior of NBT and found that the global monoclinic lattice distortion collapses even while the grains are unusually large (∼25μm).
55 citations
TL;DR: In this paper, the corrosion characteristics of two permanent magnetic alloys, Nd-Fe-B and SmCo 5 in the acidic environments were investigated. And the results revealed that the corrosion rate is significantly high for both the magnets.
55 citations
Authors
Showing all 1215 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Rajiv S. Mishra | 64 | 591 | 22210 |
| G. Sundararajan | 46 | 241 | 8402 |
| Dipankar Banerjee | 44 | 366 | 9025 |
| Satyam Suwas | 43 | 412 | 7655 |
| G. Madhusudhan Reddy | 38 | 168 | 4580 |
| Animesh Dutta | 38 | 299 | 7014 |
| Om Prakash Pandey | 37 | 441 | 6403 |
| Shrikant V. Joshi | 34 | 229 | 4119 |
| Arumugam Pandurangan | 34 | 183 | 3708 |
| Dibyendu Ganguli | 33 | 147 | 3122 |
| K. T. Jacob | 33 | 364 | 5026 |
| E. S. R. Gopal | 31 | 237 | 4191 |
| Rahul Mitra | 31 | 191 | 3698 |
| Bhaskar Majumdar | 30 | 160 | 3065 |
| Jainagesh A. Sekhar | 29 | 219 | 2524 |