Formation of Structure of Lower Carbide-Free Bainite Due to Isothermal Treatment of Steels of Types Kh3G3MFS and KhN3MFS

Yu. N. Simonov; M. Yu. Simonov; D. O. Panov; V. P. Vylezhnev; A. Yu. Kaletin

doi:10.1007/s11041-016-9965-z

Formation of Structure of Lower Carbide-Free Bainite Due to Isothermal Treatment of Steels of Types Kh3G3MFS and KhN3MFS

Authors: Simonov Y.N.¹, Simonov M.Y.¹, Panov D.O.¹, Vylezhnev V.P.¹, Kaletin A.Y.²
Affiliations:
1. Perm National Research Polytechnic University
2. Institute for Metals Physics of the Ural Branch of the Russian Academy of Sciences
Issue: Vol 58, No 1-2 (2016)
Pages: 61-70
Section: 65 Years of the Department of Metal Science, Heat and Laser Treatment of Metals of the Perm National Research Polytechnic University
URL: https://journal-vniispk.ru/0026-0673/article/view/235357
DOI: https://doi.org/10.1007/s11041-016-9965-z
ID: 235357

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Abstract

The principal possibility of formation of a structure of lower carbide-free bainite under long-term holds is shown for steels of two alloying systems Kh3G3MFS and KhN3MFS containing 0.25 – 0.30 and 0.40 – 0.45% carbon. Dilatometric analysis of the phase transformations is performed and the bainitic range of the diagrams of decomposition of supercooled austenite is plotted. The structure is studied by the methods of light, scanning electron, and transmission microscopy.