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Two-body abrasion resistance of cementite containing different chromium concentrations

Published online by Cambridge University Press:  22 February 2016

Baochao Zheng*
Affiliation:
State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
Zhifu Huang
Affiliation:
State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
Jiandong Xing
Affiliation:
State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
Yiyang Xiao
Affiliation:
State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, People's Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Bulk cementite samples with chromium (Cr) concentrations of 0, 3.01, 6.03, 8.22, and 9.76 wt% were prepared by mechanical alloying and spark plasma sintering. The elastic modulus, elastic recovery, and hardness increased with increasing chromium content. The maximum microhardness was 1070.74 HV (Vickers hardness) and the maximum elastic modulus was 199.32 GPa using a nanoindentation device. The effect of different concentrations of Cr on the wear behavior of the cementite plowing depth, roughness, debris from the worn surfaces, and weight loss due to wear were measured using pin-on-disk tribometric equipment. It was found that both the morphology and the abrasion resistance of a surface worn by microcutting and microplowing increased markedly with increasing Cr content.

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Articles
Copyright
Copyright © Materials Research Society 2016 

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References

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