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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TL;DR: In this article, the authors describe some aspects on synthesis and characterisation of nanoparticles of metals, metal alloys, and oxides, either in the form of thin films or bulk shapes.
Abstract: Development of synthesis protocols for realising nanomaterials over a range of sizes, shapes,and chemical compositions is an important aspect of nanotechnology. The remarkable size-dependent physico-chemical properties of nanoparticles have fascinated and inspired researchactivity in this direction. This paper describes some aspects on synthesis and characterisationof nanoparticles of metals, metal alloys, and oxides, either in the form of thin films or bulk shapes.A brief discussion on processing of two-phase nanocomposite magnets is also presented. Defence Science Journal, 2008, 58(4), pp.504 -516 , DOI:http://dx.doi.org/10.14429/dsj.58.1671
31 citations
04 Feb 2011-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this paper, the effect of planar flow melt spinning (PFMS) parameters on the continuity, surface quality, and structure of 10mm wide Fe68.5Si18.5B9Nb3Cu1 ribbons has been investigated.
Abstract: The effect of planar flow melt spinning (PFMS) parameters on the continuity, surface quality, and structure of 10-mm-wide Fe68.5Si18.5B9Nb3Cu1 ribbons has been investigated. The change in shape and stability of the melt puddle as a function of the processing parameter was studied using a high-speed imaging system and was correlated to ribbon formation. A window of process parameters for obtaining continuous ribbons with good surface quality has been evaluated. It has been observed that thinner ribbons are found to be more continuous because of higher ductility. The higher melt temperature leads to the formation of crystalline phase in as-spun ribbons, and this deteriorates the soft magnetic properties on annealing. The experimental results are corroborated with the numerical estimates, which suggest that the critical thickness for amorphous phase formation decreases with increasing initial melt temperature.
31 citations
TL;DR: In this paper, the authors compare the tribological properties of diamond like carbon (DLC) film obtained by plasma enhanced chemical vapour deposition (PECVD) with the Ti containing nanocrystalline carbon (Ti/a-C:H) films obtained by unbalanced magnetron sputter deposition (UMSD) in nN load range.
31 citations
TL;DR: In this article, two aluminium alloys with nominal compositions of Al-8Fe-4Ce and Al- 8Fe-1V-2Si (all compositions in wt) were rapidly solidified by ultrasonic gas atomization.
Abstract: Two aluminium alloys with nominal compositions of Al-8Fe-4Ce and Al-8Fe-1V-2Si (all compositions in wt %) were rapidly solidified by ultrasonic gas atomization. The atomized powders with an average particle size (d50) of 30 μm were vacuum hot pressed and subsequently hot extruded. The P/M extrusion exhibited similar microstructure and elevated temperature tensile properties. The tensile and stress rupture samples of both the alloys exhibited ductile dimple failure. However, the Al-Fe-V-Si extrusion samples exhibited significantly better creep and stress rupture properties. The Al-Fe-Ce alloy was found to be more susceptible to cavitation at elevated temperatures which resulted in poor stress rupture properties.
31 citations
TL;DR: In this article, the steady state creep data covering almost five orders of magnitude in creep rate shows to distinct regimes of creep deformation at all the temperatures, in the high stress regime (region-II), the creep data shows high and variable apparent stress exponents, 25-30 and high apparent activation energy, 372 kJ/mol.
31 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 |