Title :
Retardation effects of electrolytic ZrO2 coating on hydrogen embrittlement of AISI 430 stainless steel
Author :
Huang, I.B. ; Yen, S.K.
Author_Institution :
Inst. of Mater. Eng., Nat. Chung-Hsing Univ., Taichung, Taiwan
Abstract :
Through Devanthan hydrogen permeation tests and a mathematical analysis, the retarding effect of electrolytic deposition ZrO2 oxide films on the hydrogen embrittlement or entry has been investigated. The permeation test has indicated that the diffusion coefficient without oxide film Dm(1.46×10-8 cm2/s) has been reduced to DZr(8.81×10-16 cm2/s) with ZrO 2 oxide film and the surface hydrogen concentration Ch m (2.06×10-5 mol/cm3) has been reduced to Chm (0.76×10-6 mol/cm3) by the oxide film and a high concentration ratio constant K (3.5×103)
Keywords :
diffusion barriers; electrodeposits; hydrogen embrittlement; permeability; protective coatings; stainless steel; zirconium compounds; AISI 430 stainless steel; Devanthan hydrogen permeation tests; ZrO2; diffusion coefficient; electrolytic ZrO2 coating; high concentration ratio constant; hydrogen embrittlement; permeation rate; retardation effects; surface hydrogen concentration; surface morphology; Chromium; Coatings; Hydrogen; Materials testing; Mathematical analysis; Ocean temperature; Sea surface; Semiconductor films; Steady-state; Steel;
Conference_Titel :
Intelligent Processing and Manufacturing of Materials, 1999. IPMM '99. Proceedings of the Second International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-5489-3
DOI :
10.1109/IPMM.1999.792516
