Nitriding and Austenitic and Ferritic Nitrocarburizing

2016 ◽  
pp. 2357-2398 ◽  
Author(s):  
David Pye
Keyword(s):  
Ferritic Nitrocarburizing

The Influence of Alloying Elements on Surface Hardness of Ferritic Nitrocarburizing Layers of Ball Screws

2018 ◽  
Vol 87 (1) ◽  
pp. 443-449
Author(s):  
Zdenek Pokorny ◽  
David Dobrocký ◽  
Petr Faltejsek
Keyword(s):  
Surface Hardness ◽  
Alloying Elements ◽  
Ferritic Nitrocarburizing

Ferritic Nitrocarburizing of SAE 1010 Plain Carbon Steel Parts

2015 ◽  
Vol 8 (2) ◽  
pp. 482-486
Author(s):  
Madhavan Manivannan ◽  
Vesselin Stoilov ◽  
Derek O. Northwood
Keyword(s):  
Carbon Steel ◽  
Plain Carbon Steel ◽  
Ferritic Nitrocarburizing

Nitriding and Ferritic Nitrocarburizing of Quenched and Tempered Steels

2021 ◽  
Author(s):  
Mei Yang ◽  
Haoxing You ◽  
Richard D. Sisson
Keyword(s):  
Reaction Diffusion ◽  
Compound Layer ◽  
Tempered Martensite ◽  
Software Model ◽  
Parabolic Kinetics ◽  
Martensitic Microstructure ◽  
Model Predictions ◽  
Diffusion Paths ◽  
Nitriding Potential ◽  
Ferritic Nitrocarburizing

Abstract A physics-based software model is being developed to predict the nitriding and ferritic nitrocarburizing (FNC) performance of quenched and tempered steels with tempered martensitic microstructure. The microstructure of the nitrided and FNC steels is comprised of a white compound layer of nitrides (ε and γ’) and carbides below the surface with a hardened diffusion zone (i.e., case) that is rich in nitrogen and carbon. The composition of the compound layer is predicted using computational thermodynamics to develop alloy specific nitriding potential KN and carburizing potential KC phase diagrams. The thickness of the compound layer is predicted using parabolic kinetics. The diffusion in the tempered martensite case is modeled using diffusion with a reaction. Diffusion paths are also developed on these potential diagrams. These model predictions are compared with experimental results.

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