Issue |
Metall. Res. Technol.
Volume 114, Number 6, 2017
|
|
---|---|---|
Article Number | 601 | |
Number of page(s) | 5 | |
DOI | https://doi.org/10.1051/metal/2017056 | |
Published online | 11 September 2017 |
Regular Article
Metallurgical design of micro-alloyed high strength steels for forgings
1
Università di Perugia, Dipartimento di Ingegneria,
Via G. Duranti 93,
06125
Perugia, Italy
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: andrea.dischino@unipg.it
Received:
28
December
2016
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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