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
Papers
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TL;DR: In this article, the presence of an intermetallic compound layer at the bonded interface exhibits poor tensile strength and elongation, while presence of silver at the interface results in partial replacement of Fe-Al based intermetallics with Ag-Al-based compounds.
39 citations
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TL;DR: In this article, the phase purity and crystallite size of Fe-Ni-Co alloys were ascertained by using powder X-ray diffraction (XRD) and the alloys crystallize in the face centered cubic (fcc) structure with lattice parameters, a =3.546-3.558 A.
39 citations
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TL;DR: In this article, the magneto-structural transformation characteristics in melt-spun ribbons of ferromagnetic Ni-Mn-Ga Heusler-type alloys were investigated.
39 citations
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TL;DR: In this paper, the effect of pack activity and temperature on the structure and kinetics of aluminde layer formation on EN-3 steel has been investigated, and the coating characteristics were evaluated by metallography, EPMA, X-ray diffraction, and scanning electron microscope (SEM).
Abstract: Aluminide coatings are known to protect steels from oxidation and corrosion in hydrocarbon and sulfur-bearing atmospheres. Pack cementation is ideally suited for forming these coatings on small intricate components, wherein a diffused layer is formed which is well bonded to the substrate. Even though pack aluminide coated steels are being commercially used, there has not been any systematic investigation of the factors that control the coating formation. The present investigation has been carried out to define the boundary conditions under which diffusion in the solid phase determine the coating kinetics. The effect of pack activity and temperature on the structure and kinetics of aluminde layer formation on EN-3 steel has been investigated. The coating characteristics were evaluated by metallography, EPMA, X-ray diffraction, and scanning electron microscope (SEM). Oxidation resistance of the coated samples were compared to that of 304 stainless steel after heating in air at 900°C for 72 h. The surface aluminum composition was found to be about 20% by weight which remained constant with time in the temperature range of 750°C–900°C. Weight gains and layer thicknesses obeyed parabolic relationship with time at all temperatures. Under these conditions, the system constitutes a vapor-solid diffusion couple. Interdiffusion coefficient\((\tilde D)\)values in the Fe-Al system have been determined, and the activation energy has been calculated to be 57 Kcals/mole, which agrees well with the literature values.
39 citations
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TL;DR: In this article, the authors synthesized NBT and CoFe 2 O 4 composite and characterized their ferroelectric and ferrimagnetic hysteresis loops, magnetostriction and magnetoelectric output.
39 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 |