Comparison of the oxidation resistances of yttrium implanted low manganese and low manganese–carbon steels at high temperature

Yttrium implanted and unimplanted low manganese and low manganese–carbon steel samples were analyzed at Ts7008C and under an oxygen partial pressure PO2s0.04 Pa for 24 h to show the yttrium implantation effect on sample high temperature oxidation resistances. Sample oxidation weight gains were studied by thermogravimetry and structural analyses were performed by in-situ high temperature X-ray diffraction XRD.with the same experimental conditions. The aim of this paper is to show the initial nucleation stage of the main compounds induced by oxidation at high temperature according to the initial sample treatment yttrium implanted or unimplanted.. The results obtained by in-situ high temperature XRD will be compared to those by thermogravimetry to a better understanding of the weight gain curves observed during the oxidation test at 7008C and PO2s0.04 Pa. This study allows us to show the improved corrosion resistance of yttrium implanted low manganese and low manganese–carbon steel at high temperature. q2000 Elsevier Science B.V. All rights reserved.