Advances In Low Carbon High Strength Ferrous Alloys

Carderock Division, Naval Surface Warfare Center participated in the Indo-US Pacific Rim Workshop on 'Advances in Low Carbon, High Strength Ferrous Alloys' held in New Delhi, India, 25 to 28 March 1992. E.J. Czyryca and M.G. Vassilaros gave invited presentations on the status of Navy program on steel plate and weld metal research and development, respectively. The workshop was jointly sponsored by Office of Naval Research, Naval Research laboratory, US army Research Office - Far East, and the National Metallurgical Laboratory of India. This report contains papers based on the two presentations. Paper 1 - 'Advances in High Strength Steel Technology for Naval Hull Construction, ' by E.J. Czyryca, was presented by Mr. Czyryca. It covers an overview of US Navy steel plate research programs. Paper 2 - 'The Development of High-Strength, Cooling- Rate Insensitive Ultra-Low-Carbon Weld Metals, ' by M.G. Vassilaros and E.J. Czyryca, was presented by Dr. Vassilaros. It presents the status of research in high-strength steel weld metal systems based on ultra-low carbon bainitic (ULCB) metallurgy. ULCB weld metals shows a potential for wire electrode formulations for HSLA steel welding, where the as deposited weld metal strength is independent of weld metal cooling rate with a good low-temperature toughness.