Effect of hydrogen on mechanical properties of nitrided austenitic steels

• Published in: Philosophical magazine (2003. Print) Vol. 86; no. 33-35; pp. 5407 - 5418
• Main Authors: Lepienski, C. M., Kuromoto, N. K., Souza, J. F. P., Foerster, C. E., Serbena, F. C., Silva, S. L. R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Abingdon Taylor & Francis Group 21.11.2006; Taylor and Francis
• Subjects: Applied sciences; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Fatigue, brittleness, fracture, and cracks; Fractures; Mechanical and acoustical properties of condensed matter; Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology; Mechanical properties of solids; Metals. Metallurgy; Physics; Austenitic stainless steel; Elastic modulus; FCC lattices; Surface morphology; Hardness; Indentation; Bubbles; Stainless steel-304; Nitridation; Hydrogen charging; Surface cracks; Hydrogen embrittlement; Cathodic charging

Hydrogen (H) embrittlement in austenitic stainless steels is restricted to the surface due to the low diffusion coefficient of H in face-centred cubic (fcc) structures. Depth-sensing indentation is a very important tool to investigate the mechanical properties of hydrogenated steels at near-surface...