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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/18198
Title: A comparative study of cavitation erosive behaviour of 23/8N Nitronic steel and 13/4 martensitic stainless steel
Authors: Selokar A.W.
Goel D.B.
Prakash, Ujjwal
Published in: Proceedings of Advanced Materials Research
Abstract: Hydroturbine blades in hydroelectric power plants are subjected to erosion. Currently these blades are made of 13/4 martensitic stainless steel (ASTM grade A743). This steel suffers from several maintenance and welding related problems. Nitronic steels are being considered as an alternative to martensitic stainless steels since they have good weldability. In present work, erosive behaviour of 13/4 Martensitic and Nitrogen alloyed austenitic stainless steel (23/8N steel) has been studied. Cavitation erosion tests were carried out in distilled water at 20 KHz frequency at constant amplitude. Microstructure of eroded surface, mechanical properties and erosion rate were characterized. It was observed that 23/8N steel possesses excellent resistance to erosion in comparison to 13/4 martensitic steels. 23/8N steel showed good hardness coupled with high tensile toughness and work hardening ability, leading to improved erosion resistance. © (2012) Trans Tech Publications, Switzerland.
Citation: Proceedings of Advanced Materials Research, (2012), 554- 558. Roorkee
URI: https://doi.org/10.4028/www.scientific.net/AMR.585.554
http://repository.iitr.ac.in/handle/123456789/18198
Issue Date: 2012
Keywords: Cavitation erosion
Surface roughness
Tensile toughness
ISBN: 9.78E+12
ISSN: 10226680
Author Scopus IDs: 36991096700
7004138780
7005916941
Author Affiliations: Selokar, A.W., Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
Goel, D.B., Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
Prakash, U., Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
Corresponding Author: Selokar, A. W.; Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India; email: aselodmt@iitr.ernet.in
Appears in Collections:Conference Publications [MT]

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