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Structure Characterization of Fe-21Cr-17Mn-2Mo-Nb-0.83N Alloy Processed by Surface Mechanical Nanocrystallization

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Abstract:

A friction head with an embedded rolling bearing was designed, by which Fe-21Cr-17Mn-2.43Mo-Nb-0.83N high nitrogen steel was ground under rotating pressure. It was indicated that the forming process of surface nanometer grain included surface concentration plastic slip, twins deformation and fining, fragmentation and recrystallization of primary austenite grains. The plastically deformed layer is about 300μm. The surface grain is nanosize, and the grain size is about 10nm to 20nm.

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Periodical:

Advanced Materials Research (Volume 886)

Pages:

115-118

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.886.115

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Online since:

January 2014

Authors:

Chang Tao Ji, Jing Jing Huo, Xiao Peng Cui, Zi Wei Chen

Keywords:

High Nitrogen Steel, Surface Mechanical Attrition, Surface Nanocrystallization of Mechanical

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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