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The effect of tensile stress on hydrogen diffusion in metal alloysThe effect of tensile stress on hydrogen diffusion has been determined for Type 303 stainless steel, A286 CRES, and Waspaloy and IN100 nickel-base alloys. It was found that hydrogen diffusion coefficients are not significantly affected by stress, while the hydrogen permeabilities are greatly affected in Type 303 stainless steel and A286 CRES (iron-based alloys), but are affected little in Waspaloy (nickel-base) and not affected in all in IN100 (nickel base). These observations might be taken as an indication that hydrogen permeabilities are affected by stress in iron-based alloys, but only slightly affected in nickel-based alloys. However, it is too early to make such a generalization based on the study of only these four alloys.
Document ID
19930007512
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Danford, M. D.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1992
Subject Category
Metallic Materials
Report/Patent Number
NAS 1.15:108386
NASA-TM-108386
Accession Number
93N16701
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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