Characterisation of as-cast model steels with parametric variation of Ni, Mn, Si and Cr content Online publication date: Wed, 09-Nov-2011
by Jarmila Degmova; Luigi Debarberis; Beatriz Acosta; Radek Novotny; Carlo Brancucci
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 6, No. 5, 2011
Abstract: In order to understand the role and influence of Cr, Ni, Si and Mn alloying elements on the mechanical properties of steels a large spectrum of ferritic steels with parametric variation of alloying elements as well as impurities content were prepared in the frame of the SAFELIFE Action of JRC-IE and the AMES Network. The composition of the 12 prepared model steels were inspired by typical base composition of WWER-1000 and PWR materials. The testing results showed the important role of Cr and Ni concentration in model steels composition. The ranges of ductile-to-brittle transition temperature differ between high and low Cr containing steels. An increase of Cr content in model steels leads to an increase of root mean square values of the Barkhausen noise measurements, independently on Mn and Si content. On the contrary, amount of Ni influences mostly the results of Barkhausen noise and relative Seebeck coefficient measurements.
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