The structure and corrosion behavior of electron beam treated austenitic stainless steels
- 1. Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)
Description
The influence of electron beam surface melting of austenitic AISI 304 stainless steel on its microstructure and anodic potentiostatic behavior in 1N sulphuric acid at 25 C has been studied. Delta ferrite formed in the surface melted layer and was found to vary with electron beam current and stainless steel plate thickness. The structure and anodic behavior of AISI 304 specimens conventionally heat treated to provoke ferrite formation were also studied. The length of active region in the anodic potentiostatic curves for both the surface melted and heat treated specimens decreased with increasing ferrite in the austenitic steel. Overall, surface melting using high energy sources has been found to significantly improve the aqueous corrosion resistance of austenitic stainless steel by provoking the formation of duplex microstructures. (author)
Availability note (English)
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22059252.pdf
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Additional details
Publishing Information
- Imprint Pagination
- 8 p.
- Report number
- INIS-BR--2463
Conference
- Title
- 1. Congress of the Brazilian Geochemical Society.
- Dates
- 20-24 Nov 1989.
- Place
- Rio de Janeiro, RJ (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 22059252
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CORROSION; ELECTRON BEAMS; FERRITE; MICROSTRUCTURE; STEEL-CR19NI10
- Descriptors DEC
- ALLOYS; AUSTENITIC STEELS; BEAMS; CARBON ADDITIONS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; CRYSTAL STRUCTURE; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LEPTON BEAMS; NICKEL ALLOYS; PARTICLE BEAMS; STAINLESS STEELS; STEELS