Effect of Mechanical Properties on Cavitation Erosion Resistance in gamma -˃ alpha ' Phase Transformable Fe-Cr-C-Mn Alloys

Title
Effect of Mechanical Properties on Cavitation Erosion Resistance in gamma -˃ alpha ' Phase Transformable Fe-Cr-C-Mn Alloys
Authors
김선진
Keywords
Cavitation erosion; Ferrous alloys; Steel; Stress analysis; Martensitic transformation
Issue Date
2015-03
Publisher
SPRINGER/PLENUM PUBLISHERS
Citation
TRIBOLOGY LETTERS, v. 57, NO 3, Page. 1-5
Abstract
The effect of mechanical properties on cavitation erosion resistance was investigated for gamma -˃ alpha ' phase transformable Fe-Cr-C-5Mn alloys. When comparing Fe-8Cr-0.7C-5Mn to Fe-16Cr-0.7C-5Mn, the volume fraction of transformed alpha '-martensite decreased with increasing Cr due to the decrement of the stacking fault energy. In previous study, cavitation erosion resistance increased with increasing volume fraction of transformed martensite. However, the cavitation erosion resistance was improved with increasing Cr. Although the volume fraction of transformed alpha '-martensite decreased with increasing Cr concentration, Cr addition caused increases in compressive strength and elongation. In the case of gamma -˃ alpha ' phase transformable alloys, it was considered that the strength and fracture strain are more important factors for determining the cavitation erosion resistance than the volume fraction of transformed alpha '-martensite.
URI
http://link.springer.com/article/10.1007/s11249-015-0468-7http://hdl.handle.net/20.500.11754/22958
ISSN
1023-8883; 1573-2711
DOI
http://dx.doi.org/10.1007/s11249-015-0468-7
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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