Published 1998
| Version v1
Journal article
High temperature behaviour of refractory austenitic stainless steels: σ-phase formation and oxidation in air
- 1. ACERINOX. Cadiz (Spain)
- 2. Universidad Complutense de Madrid (Spain)
Description
Three stainless steels: 25Cr20Ni, 21Cr1Ni(1) and 21 Cr11Ni(2) have been oxidised in air at 1,323 K for 2 h. The three materials form oxide layers 1 to 3 μm thick with MnCr2O4 external crystals and Cr2O3 inner ones. There are a SiO2 barrier below Cr2O3 in the oxide-metal interface SiO2 also forms intra and intergranular precipitates in the metal, which are specially abundant in 21Cr11Ni materials. The theoretical predictions about σ-phase formation tendencies are confirmed after a treatment at 1,073 K for 400 h: 25Cr20Ni forms 10% vol.σ-phase, while both 21Cr1Ni form few σ-phase or they do not form it at all. (Author) 3 refs
Additional details
Additional titles
- Original title (Spanish)
- Comportamiento a altas temperaturas de aceros inoxidables austeniticos refractarios: Formacion de fase σ y oxidacion al aire
Publishing Information
- Journal Title
- Revista de Metalurgia
- Journal Volume
- 34
- Journal Page Range
- p. 67-70
- CODEN
- RMTGAC
INIS
- Country of Publication
- Spain
- Country of Input or Organization
- Spain
- INIS RN
- 29055239
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AUSTENITIC STEELS; CORROSION; OXIDATION; REFRACTORIES; STAINLESS STEELS; TEMPERATURE DEPENDENCE
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; CHEMICAL REACTIONS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; STEELS; TRANSITION ELEMENT ALLOYS