Metall. Res. Technol.
Volume 114, Number 6, 2017
|Number of page(s)||5|
|Published online||11 September 2017|
Metallurgical design of micro-alloyed high strength steels for forgings
Università di Perugia, Dipartimento di Ingegneria,
Via G. Duranti 93,
2 Acciai Speciali Terni, V.B. Brin 118, 05100 Terni, Italy
3 Università di Roma Tor Vergata, Dipartimento di Ingegneria Industriale, Via del Politecnico 1, 00133 Roma, Italy
* Email: firstname.lastname@example.org
Received in final form: 3 May 2017
Accepted: 5 July 2017
To fulfill the industrial demand of forged steels with high tensile properties and microstructural requirements coupled with reduced cost, the possibility to increase the properties of C-Mn steels by means of precipitation strengthening as achieved by micro-alloying (and without the addition of expensive elements such as Mo and Cr) has been evaluated. In order to do that, the effect of V addition has been exploited by means of metallurgical modelling followed by a laboratory ingot manufacturing. Heat treatment that has been designed aimed to achieve the target tensile properties. Results show that ASTM A694 F70 grade requirements can be fulfilled by 0.15% V addition and a proper heat treatment in a ferrite-pearlite microstructure, representative of a forged component.
Key words: steels / V / micro-alloying
© EDP Sciences, 2017
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