Trap-governed hydrogen diffusivity and uptake capacity in ultrahigh-strength AERMET 100 steel

• Published in: Metallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 33; no. 7; pp. 1991 - 2004
• Main Authors: THOMAS, Richard L. S, DAOMING LI, GANGLOFF, Richard P, SCULLY, John R
• Format: Journal Article
• Language: English
• Published: New York, NY Springer 01-07-2002; Springer Nature B.V
• Subjects: Applied sciences; Baking; Charging; Chromium molybdenum steels; Condensed matter: structure, mechanical and thermal properties; Confidence intervals; Diffusivity; Equations of state, phase equilibria, and phase transitions; Exact sciences and technology; Heat treating; High strength steels; Hydrogen; Hydrogen embrittlement; Martensite; Martensitic stainless steels; Metallurgy; Metals. Metallurgy; Outgassing; Physics; Slaked lime; Solubility, segregation, and mixing; phase separation; Steel; Thermal desorption spectroscopy; Trapping; Ultrafines; Gas absorption; Hydrogen; Solubility; Thermodesorption; Steels; Diffusion coefficient; Experimental study; High-strength steels; Diffusivity; Cathodic charging
• ISSN: 1073-5623; 1543-1940
• DOI: 10.1007/s11661-002-0032-6

The hydrogen-uptake capacity and mobility in ultrahigh-strength AERMET 100 are characterized for various electrochemical charging and baking conditions. From thermal desorption spectroscopy, the apparent hydrogen diffusivity is over tenfold less than the values typical of tempered martensitic steels such as AISI 4130.