Effects of Phase Transformation Temperature on Formation of Wear-Induced Layer in Fe-Ni Alloys

Hisashi Sato; Yuichi Kubota; Eri Miura-Fujiwara; Yoshimi Watanabe

doi:10.4028/www.scientific.net/MSF.654-656.1227

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HomeMaterials Science ForumMaterials Science Forum Vols. 654-656Effects of Phase Transformation Temperature on...

Effects of Phase Transformation Temperature on Formation of Wear-Induced Layer in Fe-Ni Alloys

Abstract:

Effects of the transformation temperature on formation behavior of the wear-induced layer in Fe alloys are investigated using Fe-33mass%Ni and Fe-30mass%Ni alloys. Martensitic transformation temperature (Ms)　and reverse transformation temperature (As) of Fe-33mass%Ni alloy are lower than those of Fe-30mass%Ni alloy. Microstructure of the wear-induced layer in Fe-33mass%Ni alloy was single austenite phase (γ) with fine grain. On the other hand, the wear-induced layer in Fe-30mass%Ni alloy consists of martensite (α’) and γ with fine structure. This difference is due to the difference of As between these Fe-Ni alloys. Moreover, the microstructure of the wear-induced layer has no dependence on the distribution of α’ in initial microstructure. From obtained results, it is concluded that the formation of the wear-induced layer in Fe alloys is mainly affected by As.

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Materials Science Forum (Volumes 654-656)

Pages:

1227-1230

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.654-656.1227

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Online since:

June 2010

Authors:

Hisashi Sato, Yuichi Kubota, Eri Miura-Fujiwara, Yoshimi Watanabe

Keywords:

Electron Backscatter Diffraction (EBSD), Phase Transformation, Severe Plastic Deformation (SPD), Wear

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