P Rama Rao
Articles written in Bulletin of Materials Science
Volume 11 Issue 4 December 1988 pp 329-336
The effect of solutes on resistance to fracture of body centred cubic iron single-phase solid-solution alloys has been investigated. The
Volume 12 Issue 1 March 1989 pp 1-1
Volume 12 Issue 3-4 September 1989 pp 171-171 International Conference On Recent Advances In Materials And Processes
Volume 13 Issue 1-2 March 1990 pp 1-2 First National Seminar On GaAs And III–V Compound Semiconductors
Volume 14 Issue 2 April 1991 pp 93-94 International Conference On Superconductivity—I
Volume 14 Issue 3 June 1991 pp 531-532 International Conference On Superconductivity—II
Volume 15 Issue 1 February 1992 pp 1-1
Volume 15 Issue 1 February 1992 pp 3-25
Engineering structures experience impulsive loads during the time of natural disasters like earthquakes, cyclones and collisions. The design of structures resistant to such natural disasters requires an understanding of the deformation and fracture behaviour of the materials constituting the structure under impulsive loading conditions. In this paper the various aspects of dynamic plastic deformation and fracture of common engineering materials are reviewed and contrasted with their behaviour under static loading conditions.
Volume 15 Issue 3 June 1992 pp 189-189
Volume 15 Issue 5 August 1992 pp 389-389 Seminar On Ceramies And Glasses For Electronic Applications
Volume 15 Issue 6 December 1992 pp 481-481 Symposium Session On Rapid Solidification Processing
Volume 16 Issue 6 December 1993 pp 403-403
Volume 17 Issue 5 October 1994 pp 1-
Volume 17 Issue 6 November 1994 pp 1-
Volume 17 Issue 6 November 1994 pp 633-641
The effect of alloying additions viz. cobalt, molybdenum, cerium and a combination of cobalt and molybdenum, on the
Volume 17 Issue 6 November 1994 pp 829-839
Diamond like carbon films and C-N films were prepared using ion beam assisted deposition technique (IBAD). Tribological properties were studied by subjecting DLC coated films to the accelerated wear tests. These tests indicated a significant improvement in the mechanical surface properties of glass by DLC coating. Better wear features were obtained for thinner DLC coating as compared to the thicker ones. We also studied the optical properties and obtained a band gap of 1·4 eV for these films. An attempt was made to prepare C3N4 films by using IBAD. We observed variation in the nitrogen incorporation in the film with the substrate temperature.
Volume 17 Issue 7 December 1994 pp 1197-1197
Volume 18 Issue 4 August 1995 pp 325-341 Indo—Japan Seminar On New Materials
Ultrahigh strength steels have been used increasingly in recent years for critical aircraft and aerospace structural applications. In such applications, though materials performance is of prime consideration, cost and availability makes the low-alloy steels an attractive option. This paper describes the development of an ultrahigh strength NiSiCrCoMo low-alloy steel, supported by significant findings obtained from the basic studies that were aimed at understanding how solute additions influence fracture resistance of iron, with and without the presence of carbon. The results of the basic studies, in combination with the work of Garrison (1986) on a NiSiCr steel, have profitably been employed in the development of a NiSiCrCoMo low-alloy steel possessing a strength-toughness combination quite comparable to the highly alloyed 250-grade maraging steel. Reproducibility of attractive strength and toughness properties has been established in tonnage scale melts. This steel, in the softened condition, has good formability and machinability. Weld parameters have also been established. The NiSiCrCoMo low-alloy steel thus meets the requirements of performance and cost rendering it an attractive option for advanced structural applications.
Volume 19 Issue 2 April 1996 pp 179-199
A critical review of the current status of tungsten resources, of state-of-the-art processing technology and of product development in India vis-a-vis the world scenario is presented. An attempt has been made to identify technology gap areas requiring attention.
Volume 20 Issue 6 September 1997 pp 737-737 India-Japan Seminar On New Materials
Volume 22 Issue 3 May 1999 pp 139-139
Volume 22 Issue 5 August 1999 pp 827-827 India-Japan Seminar On Computational Materials Science, October 1998, Bangalore
Volume 42 | Issue 6
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