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- Title
Cavitation erosion resistance of 13/4 and 21-4-N steels.
- Authors
CHAUHAN, AKHILESH
- Abstract
Nitrogen strengthened austenitic stainless steel (termed as 21-4-N steel) in as cast and hot rolled conditions has been investigated as an alternative to 13/4 steel (termed as CA6NM) to overcome the problems of cavitation erosion in hydro turbine underwater parts. The cavitation erosion of 21-4-N and 13/4 steels was investigated by means of an ultrasonic vibration processor. The cavitation erosion is highly dependent on microstructure and mechanical properties. The results show that hot rolled 21-4-N steel is more cavitation erosion resistant than the 13/4 and 21-4-N steels in as cast condition. The eroded surfaces were analysed through optical microscope and scanning electron microscope for study of erosion mechanisms.
- Subjects
CAVITATION erosion; AUSTENITIC stainless steel; SCANNING electron microscopes; OPTICAL microscopes; METAL microstructure; STRAIN hardening; MARTENSITIC stainless steel
- Publication
Sādhanā: Academy Proceedings in Engineering Sciences, 2013, Vol 38, Issue 1, p25
- ISSN
0256-2499
- Publication type
Article
- DOI
10.1007/s12046-013-0125-5