The Effect of Tensile Stress on Hydrogen Diffusion in Metal Alloys

By: Nasa, National Aeronautics and Space Adm

The 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. Danford, M. D. Marshall Space Flight Center ...

• Format: Paperback
• Language: English
• ISBN: 1729184189
• ISBN13: 9781729184189
• Release Date: January 1
• Publisher: Independently Published
• Length: 50 Pages
• Weight: 0.31 lbs.
• Dimensions: 0.1" x 8.5" x 11.0"