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Title: Hydrogen compatibility of structural materials for energy storage and transmission applications. Semiannual report, January 15, 1976

Technical Report ·
DOI:https://doi.org/10.2172/7196226· OSTI ID:7196226

Work on the hydrogen compatibility of structural materials for pressure vessels and pipelines is proceeding along several fronts. In support of Brookhaven National Laboratories (BNL), the tensile behavior of a number of carbon and pressure vessel steels in high pressure hydrogen gas and in contact with iron-titanium hydride has been characterized. Slow crack growth studies of pressure vessel steels are nearing completion. Studies addressing the protective value of brush electroplated coatings are being continued. A new silicon coating applied by vapor deposition is also under study. Self-loaded tensile specimens are being prepared for use by BNL in an in-situ accelerated test program. Efforts are underway to modify the hydrogen compatibility of manganese-carbon and high carbon steels by thermomechanical treatment, and to characterize their mechanical properties and microstructures. The effects of chemical segregation on hydrogen cracking are also being studied. Construction of the experimental hydrogen pipeline is proceeding satisfactorily with initial safety tests to be performed soon.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
DOE Contract Number:
AT(29-1)-789
OSTI ID:
7196226
Report Number(s):
SAND-76-8206
Country of Publication:
United States
Language:
English