Prediction of Phase Composition and Nitrogen Concentration During the Nitriding Process in Low-Alloy Steel

• Published in: Materials research (São Carlos, São Paulo, Brazil) Vol. 19; no. 2; pp. 353 - 359
• Main Authors: Deng, Xiaohu, Ju, Dongying
• Format: Journal Article
• Language: English; Portuguese; Spanish
• Published: ABM, ABC, ABPol 01.04.2016; Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
• Subjects: Chromium molybdenum steels; Computer simulation; Concentration (composition); Constraining; Diffusion; ENGINEERING, CHEMICAL; Fe-N phase composition; Low alloy steels; Low-alloy steel; MATERIALS SCIENCE, MULTIDISCIPLINARY; Mathematical models; METALLURGY & METALLURGICAL ENGINEERING; Modeling; Nitriding; Nitrogen concentration; Transformations; Low-alloy steel; Nitriding; Nitrogen concentration; Fe-N phase composition; Modeling

A diffusion/transformation coupled model has been developed which combines finite difference (FD) model with a phenomenological model. The composition of the different iron-nitrogen(Fe-N) hardening phase can be regard as a function of nitriding time and nitrogen concentration. The diffusion model an...