High temperature degradation of some steels in V{sub 2}O{sub 5} and Na{sub 2}SO{sub 4} salts
Conference
·
OSTI ID:352595
- Centro de Investigaciones en Materials Avanzados, Chihuahua (Mexico)
- Univ. Autonoma del Estado de Morelos (Mexico)
The useful life of superheaters and reheaters of power stations which use heavy oil as fuel are shortened and their continuous service is inhibited by corrosion and creep type problems. The increase of corrosion attack of boilers is caused by the presence of fuel ash deposits containing mainly V, Na and S which form low melting point compounds. In this context, the tubes are exposed to the action of high stresses and high temperatures producing the so called ``creep damage.`` In this work, two kinds of results are reported: laboratory and field studies using stainless steels. The laboratory work was also divided into two parts. In the first one, the steel was exposed under the action of natural ash-deposits in oxidant atmospheres at 600 C for 24 hours. In the second one, tensile specimens were creep-tested in Na{sub 2}SO{sub 4}, V{sub 2}O{sub 5} and a mixture at 580--620 C interval.
- OSTI ID:
- 352595
- Report Number(s):
- CONF-980316--
- Country of Publication:
- United States
- Language:
- English
Similar Records
High-temperature degradation and protection of ferritic and austenitic steels in steam generators
Effect of hot corrosion on the creep properties of types 321 and 347 stainless steels
Effect of hot corrosion on the creep behavior of stainless steels
Journal Article
·
Sat Jan 31 23:00:00 EST 1998
· Journal of Materials Engineering and Performance
·
OSTI ID:616133
Effect of hot corrosion on the creep properties of types 321 and 347 stainless steels
Journal Article
·
Sun Jan 31 23:00:00 EST 1999
· Journal of Materials Engineering and Performance
·
OSTI ID:335273
Effect of hot corrosion on the creep behavior of stainless steels
Book
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:233951