Progress toward understanding the stress corrosion problem

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3583022· OSTI ID:5635363

Pugh, E N

The propagation of transgranular stress corrosion cracking in engineering alloys is discussed. The crack propagation process which is believed to occur by discontinuous cleavage is described; particular emphasis is placed on the crystallography of the cleavage surfaces and evidence from crack-trace and acoustic emission studies whichexplain the discontinuous nature of the propagation process. A description and evaluation of the hydrogen embrittlement model, adsorption model, selective dissolution, and the film-induced cleavage model, which are proposed to explain the occurrence of environmentally induced cleavage, are provided. Step formation in between primary cleavage facets occurring by highly localized plastic shearing on planes is examined. 61 references.

• Research Organization: National Bureau of Standards, Gaithersburg, MD
• OSTI ID: 5635363
• Journal Information: Corrosion (Houston); (United States), Journal Name: Corrosion (Houston); (United States) Vol. 41; ISSN CORRA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
ALUMINIUM ALLOYS
AUSTENITIC STEELS
CHEMICAL REACTIONS
COPPER ALLOYS
CORROSION
CRACK PROPAGATION
CRYSTALLOGRAPHY
EMBRITTLEMENT
FERRITIC STEELS
HYDROGEN EMBRITTLEMENT
INTERGRANULAR CORROSION
IRON ALLOYS
IRON BASE ALLOYS
MAGNESIUM ALLOYS
STEELS
TITANIUM ALLOYS