Phase composition and properties of deformed steel 12Kh18N10T after prolonged heating

Autor: G. V. Kuznetsova, V. P. Vypryazhkin, A. M. Tolstov, M. A. Smirnov, Yu. P. Bulanov
Rok vydání: 1979
Předmět:
Zdroj: Metal Science and Heat Treatment. 21:34-38
ISSN: 1573-8973
0026-0673
DOI: 10.1007/bf00800395
Popis: 1. Plastic deformation substantially accelerates precipitation of σ phase and carbides TiC and (Ti, Ni)6C in steel 12Kh18N10T, the intensifying effect decreasing notably when the rolling temperature is raised from 20 to 1000°. 2. Plastic deformation substantially reduces the fracture toughness of steel 12Kh18N10T after prolonged holding at 650°. The fracture toughness decreases least after high-temperature and cold deformation with 15% reduction. 3. The effect of preliminary polygonization annealing on the properties of steel 12Kh18N10T is retained during subsequent heating to 650° for as long as 500 h. 4. The structure resulting from high-temperature deformation is the most stable during prolonged heating at 650°.
Databáze: OpenAIRE