The dependence of complex alloyed steel properties on quenching and tempering conditions

• Published in: Metallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 27; no. 9; pp. 2852 - 2859
• Main Authors: VINOKUR, B. B, VINOKUR, A, SHTESSEL, V. E
• Format: Journal Article
• Language: English
• Published: New York, NY Springer 01-09-1996
• Subjects: Applied sciences; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Metals. Metallurgy; Other heat and thermomechanical treatments; Physics; Treatment of materials and its effects on microstructure and properties; Alloy steel; Tempering; Phase transformations; Morphology; Mechanical properties; Low alloy steels; Experimental study; Microstructure; Heat treatments; Carbides; Martensitic transitions; Quenching
• ISSN: 1073-5623; 1543-1940
• DOI: 10.1007/BF02652377

The mechanical properties of 30Cr3NiMoW steel depend on temperature-time conditions established by quenching and tempering. Methods of multiple regression analysis with step-by-step elimination of insignificant regressors allow quenching and tempering temperatures to be established that ensure the best combination of mechanical properties. The optimal heating conditions for steel 30Cr3niMoW are at temperatures of 900-925 deg C for quenching and 600-615 deg C for tempering. It is assumed that austenitization time is > =1 h for complete carbide dissolution and that tempering holding time is > =6 h in order to complete the carbide transformation. Analogous investigations of the phase-structural composition and heat treatment optimization calculation can be used for other complex alloyed steels.