COMPLEX-ION EMBRITTLEMENT OF SILVER CHLORIDE.
Abstract
It is demonstrated (1) that AgCl embrittlement in chloride environments can be prevented by the presence, in solution, of such inhibitor-ions as K(+), Cs(+), Zn(2+), Cd(2+), or Hg(2+), (2) that embrittlement can be induced by complex-ions of high positive charge, and (3) that monocrystals can be embrittled providing that they contain a preexisting crack. Studies of monocrystal fracture surfaces revealed that the fracture process is discontinuous. For this, and other reasons discussed, it is concluded that embrittlement cannot be explained on the basis of a dissolution-dependent mechanism, but is more likely to be associated with the adsorption of complex-ions of high charge in the vicinity of strained surface bonds. It is suggested that the charge on the complex induces a localized redistribution of the shared electrons constituting the bond, effectively reducing its strength, and causing the bond to break at an abnormally low stress level. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1964
- Accession Number
- AD0608508
Entities
People
- A. R. C. Westwood
- D. L. Goldheim
- E. N. Pubh
Organizations
- Glenn L. Martin Company