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- Title
Development and Production of Weldable High-Strength Steels with a Yield Point in the Range from 600 to 950 N/mm<sup>2</sup>.
- Authors
Geier, V. V.; Popova, T. N.; Nikitin, V. N.; Kiselev, S. I.
- Abstract
Studies have been made of the microstructure of steel 18KhGNMFR after the quenching and tempering and “ normalizing rolling” of plates 12 and 22 mm thick. Raising the quenching temperature to 950°C leads to growth of the austenite grains, which reduces impact toughness. Thus, the quenching temperature for steel 18KhGNMFR should be no greater than 920°C. On the whole, the structure of the steel in 9–14-mm-thick plates subjected to normalizing rolling is uniform and is free of grain-boundary precipitates of carbide particles. This ensures that the steel will have satisfactory toughness properties.
- Subjects
STEEL welding; MICROSTRUCTURE; METALLOGRAPHY; STEEL quenching; CRYSTAL grain boundaries; TEMPERATURE
- Publication
Metallurgist, 2005, Vol 49, Issue 5/6, p230
- ISSN
0026-0894
- Publication type
Article
- DOI
10.1007/s11015-005-0083-1