The Influence of Quenching Temperature on the Structure of a Dual-Phase Steel with 0.094% C and 0.53% Mn

Abstract:

In this article, the authors have analysed the influence of quenching temperature (T_Q) on the microstructure of a dual-phase steel with a low carbon and manganese content (0,094 % C and 0,53 % Mn). The ferrite-martensite structures, typical of the dual-phase steels, has been obtained by intercritical quenching that consisted of heating at temperatures (T_Q) ranging between 750 ^°C and 830 ^°C, maintaining for 30 minutes and cooling in water. After carrying out intercritical heat treatments, samples have been subjected to metallographic analysis through which the volume fraction of martensite (V_M), the volume fraction of ferrite (V_F), the carbon content of the martensite (C_M), the morphology and distribution of these phases have been determined, and then, the influence of quenching temperature (T_Q) has been established.

• Periodical: Applied Mechanics and Materials (Volumes 809-810)
• Pages: 507-512
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.809-810.507
• Online since: November 2015
• Authors: Constantin Dulucheanu*, Nicolai Bancescu, Traian Severin
• Keywords: Dual-Phase Steel, Ferrite-Martensite Structure, Intercritical Quenching

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