Brittle fracture of Cu-30 Au induced by a surface layer

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Journal of the Electrochemical Society; (United States)

DOI:https://doi.org/10.1149/1.2069496· OSTI ID:7238120

Chen, J S; Devine, T M ^[1]; Salmeron, M ^[2]

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1. California Univ., Berkeley, CA (United States)
2. Lawrence Berkeley Lab., CA (United States)

A dealloyed surface layer formed on Cu-30 Au with zero applied stress by anodic polarization in 0.6 M NaCl was found to be capable of inducing intergranular fracture of the normally ductile substrate during impact loading. If the sample was simultaneously stressed and dealloyed, the fracture mode was transgranular cleavage. This paper reports that the results indicate that the mechanisms of intergranular stress corrosion cracking and transgranular stress corrosion cracking of Cu-30 Au are identical.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7238120
• Journal Information: Journal of the Electrochemical Society; (United States), Journal Name: Journal of the Electrochemical Society; (United States) Vol. 139:6; ISSN JESOA; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
360105* -- Metals & Alloys-- Corrosion & Erosion
664400 -- Experimentally Derived Information on Atomic & Molecular Properties-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METAL COMPOUNDS
ALLOYS
ANODES
BRITTLENESS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COPPER ALLOYS
CORROSION
DUCTILE-BRITTLE TRANSITIONS
ELECTRODES
FRACTURE MECHANICS
GOLD ALLOYS
HALIDES
HALOGEN COMPOUNDS
IMPACT SHOCK
INTERGRANULAR CORROSION
MECHANICAL PROPERTIES
MECHANICS
PHASE TRANSFORMATIONS
POLARIZATION
SODIUM CHLORIDES
SODIUM COMPOUNDS
STRESS CORROSION