Influence of the Unconventional Treatment Applied to a Steel on the Corrosion Evolution
Abstract
The study of an alloyed steel with Cr Mo with an important content of aluminum (0.9…1.2%), unconventionally treated in magnetic field, is attractive because of the durability which increases along with the improvement of the corrosion resistance. Through the thermo-magnetic treatments applied before thermo-chemical treatment, the mechanical properties of this material have been improved. The hardness of the superficial layers has been increased after thermomagnetic and thermo-chemical treatment because of the superficial layers’ characteristics obtained after the unconventional treatment. The behavior of steel in corrosion tests was used as criterion.
This paper is a review of personal research and presents the changes of corrosion resistance, using non-conventional treatments and corrosion tests for a Cr Mo alloyed steel, after thermo-magnetic treatment, respectively thermo-chemical treatment. The evolution of the superficial layer for non-conventionally treated steel during the corrosion tests was studied.
Downloads
References
[2]. Sun Z. H. I., Guo M., et al., Strong magnetic field processing of metallic materials: A review, Current Opinion in Solid State and Materials Science 16, p. 254-267, 2012.
[3]. Umoren S. A., Ly Y., Wang F. H., Influence of aluminium microstructure on corrosion and Corrosion inhibitor performance in acidic medium, Journal of Materials and Environmental Science, vol. 1, no. 3, 2010.
[4]. Stefanescu I., Contribuţii la studiul influenţei tratamentelor termomagnetice asupra unor caracteristici mecanice ale oţelurilor de rulmenţi RUL1, Suceava, 1981.
[5]. Papadatu C. P., Posibilități de îmbunătățire a calității unor oțeluri utilizate în industria metalurgiăa, Editura Fundației Universitare “Dunărea de Jos”, Galați, 2007.