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Strain-Induced epsilon/alpha' Martensitic Transformation Behavior and Solid Particle Erosion Resistance of Austenitic Fe-Cr-C-Mn/Ni Alloys

Title
Strain-Induced epsilon/alpha' Martensitic Transformation Behavior and Solid Particle Erosion Resistance of Austenitic Fe-Cr-C-Mn/Ni Alloys
Other Titles
alpha' Martensitic Transformation Behavior and Solid Particle Erosion Resistance of Austenitic Fe-Cr-C-Mn
Author
김선진
Keywords
Ferrous alloy; Martensitic transformations; Wear; Austenite; Martensite
Issue Date
2014-04
Publisher
Springer
Citation
Tribology Letters April 2014, Volume 54, Issue 1, pp 51?58
Abstract
The strain-induced ε/α′ martensitic transformation behavior and resistance to solid particle erosion was investigated for austenitic Fe-12Cr-0.4C-xMn/Ni (x = 5, 7, and 10 wt%) alloys. The γ → α′ chemical driving force decreased with increasing Mn and Ni. The SFE values of 5Ni, 7Ni, and 10Ni alloys were 31.2, 41.5, and 45.8 mJ/m2, respectively. Because Ni increased the SFE, γ → α′ phase transformation was suppressed in Fe-12Cr-0.4C-Ni alloys. The SFE values for 5Mn, 7Mn, and 10Mn alloys were 19.4, 16.6, and 10.5 mJ/m2, respectively. Although Mn decreased the SFE, the fraction of transformed α′ decreased with increasing Mn concentrations due to γ → ε phase transformation and decreasing γ → α′ chemical driving force of higher Mn alloys. The solid particle erosion resistance was better in the phase transformable alloys than the non-phase transformed alloys. In particular, γ → α′ phase transformable alloys had better resistance to solid particle erosion than γ → ε phase transformable alloys.
URI
https://link.springer.com/article/10.1007/s11249-014-0306-3http://hdl.handle.net/20.500.11754/51376
ISSN
1023-8883; 1573-2711
DOI
10.1007/s11249-014-0306-3
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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