Structural Aspect of Isothermal Bainitic Transformation in High-Carbon Manganese–Silicon Steel

• Published in: Physics of metals and metallography Vol. 119; no. 10; pp. 956 - 961
• Main Authors: Yakovleva, I. L., Tereshchenko, N. A., Mirzaev, D. A., Buldashev, I. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-10-2018; Springer; Springer Nature B.V
• Subjects: Analysis; Bainite; Bainitic transformations; Carbides; Carbon; Chemistry and Materials Science; Diffusion; Interlayers; Manganese; Martensitic stainless steels; Martensitic transformations; Materials Science; Metallic Materials; Phase plates; Phase Transformations; Retained austenite; Scanning electron microscopy; Silicon; Silicon steel; Silicon steels; Structure; X-ray diffraction; fine carbide particles; bainite; low-temperature bainitic transformation; residual austenite; structure; high-carbon manganese–silicon steel; martensite
• ISSN: 0031-918X; 1555-6190
• DOI: 10.1134/S0031918X18100149

Transmission and scanning electron microscopy and X-ray diffraction analysis were used to compare the structural states of high-carbon manganese–silicon steel which underwent low-temperature isothermal bainitic and martensitic transformations. It was shown that bainite consisting of thin α-phase plates and residual austenite interlayers forms during isothermal holding at 300°С. As the isothermal holding time increases, fine carbide particles precipitate within the bainite α-phase.