HYDROGEN EMBRITTLEMENT RESULTING FROM CORROSION, CATHODIC PROTECTION, AND ELECTROPLATING.
Abstract
The permeation rate of hydrogen through Armco iron membranes has been studied as a function of potential in various ambient electrolytes. In each case, the membranes were Armco iron, 0.77 mm thick. The cathodic solutions were prepared from standard analytical reagents using ttriply distilled water. The sodium hydroxide solutions were preelectrolyzed for 48 hours to remove any residual impurities. The cathodic current was measured by a Simpson micro-ammeter. The potential of the cathode was measured with respect to a saturated calomel electrode using a Kintel micro-volt-ammeter. The permeation rate of hydrogen through Armco iron membranes was studied as a function of temperature in the range 10 C to 75 C at a cathodic current density of 10 mA/ sq cm. Constant temperature (to within + or 0.5 C) was maintained using an air thermostat. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1964
- Accession Number
- AD0446525
Entities
People
- J. Mcbreen
- John O M. Bockris
- L. Nanis
Organizations
- University of Pennsylvania