Nanocrystallization of cementite in 0.4C-1Cr steel during high-power surface processing

Zhao Xinqi; Liu Zhiwen; Zhang Junbao; Wu Jie; Xu Zheng; Xiong Tianying; Song Hongwei

doi:10.1007/BF02835029

Journal of Wuhan University of Technology Materials Science Edition ›› 2005, Vol. 20 ›› Issue (3) : 60 -63. DOI: 10.1007/BF02835029

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Nanocrystallization of cementite in 0.4C-1Cr steel during high-power surface processing

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Abstract

The microstructures of the nanocrystalline surface layer of a quenched and high temperature tempered 0.4C-1Cr steel induced by high-power surface processing (HPSP) technique were characterized by scanning electron microscopy and transmission electron microscopy. The results indicate that a nanocrystalline layer was fabricated on the surface of the steel by using HPSP treatment. The mean grain size in the surface layer is about 11 nm. The nanocrystallization of cementite is prior to that of the matrix phase, ferrite.

Keywords

cementite / high-power surface processing / surface nanocrystallization

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Zhao Xinqi, Liu Zhiwen, Zhang Junbao, Wu Jie, Xu Zheng, Xiong Tianying, Song Hongwei. Nanocrystallization of cementite in 0.4C-1Cr steel during high-power surface processing. Journal of Wuhan University of Technology Materials Science Edition, 2005, 20(3): 60-63 DOI:10.1007/BF02835029

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