Published July 2007
| Version v1
Journal article
Reducing SS 304/316 hydrogen outgassing to 2x10-15 torr l/cm2 s
Creators
- 1. Quantum Mechanics Corp., 21885 8th Street East, P.O. Box 1885, Sonoma, California 95476 (United States)
Description
Significant reduction in the outgassing rate of 300-series stainless steel is routinely attained through combination of electropolishing and vacuum baking. Preferential removal of Ni, Fe, and Mn from the surface of stainless steel by electropolishing creates a chromium-enriched surface. It also reduces the atomic surface area of the work piece closer to its geometric surface area. When the material is vacuum fired to remove interstitial hydrogen, the resultant stainless steel exhibits an outgassing rate of about 2x10-15 torr l/cm2 s, as well as drastically reduced adsorption, absorption, and catalytic behaviors
Additional details
Identifiers
- DOI
- 10.1116/1.2734151;
Publishing Information
- Journal Title
- Journal of Vacuum Science and Technology. A, International Journal Devoted to Vacuum, Surfaces, and Films
- Journal Volume
- 25
- Journal Issue
- 4
- Journal Page Range
- p. 1309-1311
- ISSN
- 1553-1813
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39008194
- Subject category
- S36: MATERIALS SCIENCE; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ABSORPTION; ADSORPTION; BAKING; CATALYSIS; CHROMIUM; DEGASSING; ELECTROPOLISHING; HYDROGEN; INTERSTITIALS; REDUCTION; STAINLESS STEELS; SURFACE AREA; SURFACES
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; ELECTROLYSIS; ELEMENTS; HEATING; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LYSIS; METALS; NONMETALS; POINT DEFECTS; POLISHING; SORPTION; STEELS; SURFACE FINISHING; SURFACE PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS
Optional Information
- Notes
- (c) 2007 American Vacuum Society