NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Recent developments in liquid-metal embrittlementThe paper reviews developments in liquid-metal embrittlement of the past 7 years including data on cyclic loading. Embrittlement by solid and liquid metals and by hydrogen has many common features, although the mechanism of embrittler transport differs. Fracture may occur in each type of embrittlement by environmentally assisted shear and by reduced cohesion; embrittlement under cyclic loading has been widely observed, with stress level, temperature, and substrate alloy composition and grain size being the major variables. The degree of embrittlement between any combination of environment (i.e. hydrogen, liquid metal, or solid metal) and substrate depends upon the strength of the interaction with the substrate, the kinetics of embrittler transport, the mutual solubility of embrittler and substrate, and a large number of test and microstructural conditions. A method of calculating the most significant of these variables and the strength of interaction was reviewed and predictions of embrittlement in previously untested couples were made.
Document ID
19800030394
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Stoloff, N. S.
(Rensselaer Polytechnic Institute, Troy, N.Y., United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1979
Subject Category
Metallic Materials
Meeting Information
Meeting: In: Environment-sensitive fracture of engineering materials
Location: Chicago, IL
Start Date: October 24, 1977
End Date: October 26, 1977
Accession Number
80A14564
Funding Number(s)
CONTRACT_GRANT: NGL-33-018-003
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available