Effects of Environment on the Mechanical Behavior of Metals
Abstract
Research was directed with the specific objective of providing an improved understanding of the mechanical behavior of metals in electrolytes, with the ultimate view of using such understanding to increase the efficiency of operations such as metal cutting or forming and in the prevention of the environmental degradation of stressed materials, i.e., stress corrosion cracking, hydrogen embrittlement, etc. The mechanical behavior of metal electrodes has been examined from the point of view of the influence of variations in the surface charge density in the electrical double layer, and it has been found that both the flow and fracture characteristics of zinc electrodes is sensitive to such electrocapillary effects. In the case of hydrogen embrittlement, it was demonstrated that the intergranular embrittlement of nickel by cathodic hydrogen is associated with the accumulation of impurities--particularly those that are effective hydrogen recombination poisons--at the grain boundaries.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1974
- Accession Number
- ADA006299
Entities
People
- J. A. Green
- R. M. Latanision
Organizations
- Martin Marietta