Accession Number : AD0779054

Title :   The Mutual Occurrence of Cathodic and Anodic Cracking in Iron.

Descriptive Note : Technical rept.,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF METALLURGY AND MATERIALS SCIENCE

Personal Author(s) : Bernstein,I. M. ; Pickering,H. W.

Report Date : MAY 1974

Pagination or Media Count : 11

Abstract : Experimental evidence is presented which supports the contention that anodic dissolution can occur in iron under strong cathodic polarization conditions. This evidence takes the form of metallographic observations of surface nucleated macro-cracks, as well as the presence of ferrous ions in that part of the electrolyte in contact with such cracks. The implications of the presence of these cracks on material integrity and the efficacy of cathodic protection are briefly discussed. (Author)

Descriptors :   *Iron, Cracking(Fracturing), Cracks, Polarization, Crack propagation, Dissolving, Cathodic protection, Hydrogen

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE