Abstract
The nitrogen solubilities were measured on austenitic Fe-Cr and Fe-Mn binary alloys in order to study the effects of alloying elements on the activity of nitrogen in austenite and to obtain the interaction parameters of alloying elements. Samples used were Fe-Cr alloys with Cr content up to15% and Fe-Mn alloys with Mn content up to 6% and the experimental temperatures were 1050°C, 1150°C and 1250°C.
Solubility measurements were carried out by the quenching method, which were proposed by N.S.Corney and E.T.Turkdogan.
Both Cr and Mn were found to decrease the activity of nitrogen in austenite and the interaction parameters were calculated as follows:
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