Thermal cycling treatment of low-carbon steels with hardening from the intercritical temperature range

• DOI: 10.1007/bf00778269
• Publication Date: 2004-12-11T08:25:08Z
• Authors: E. V. Konopleva; R. I. �ntin; V. M. Bayazitov; Yu. K. Okoemov
• Keywords: Temperature cycling; Hardening (computing); Atmospheric temperature range; Cycling; Carbon fibers

Thermal cycling treatment of 08Kh2G2F and 30KhGSN2A steels with intermediate hardening from intercritical range temperatures (Ac1+20–40°C) provides an ultrafine austenitic grain size of 2.5–3.5 μm. The obtaining of a finer and more uniform structure of these steels in comparison with thermal cycling treatment consisting of three hardenings from the area of the stable state of austenite provides a 1.2–1.4 times higher impact strength at low temperatures.