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Influence of Electron Beam Pulsed Times on the Properties of 40Cr

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Abstract:

Surface modification of 40Cr steel by high current pulsed electron beam has been investigated . The pulsed times of HCPEB was changed from 1 to 25 to prepare different specimens. Surface microstructures and section microstructures after HCPEB irradiation were detected by using metallurgical microscope, SEM and X-ray diffractometer. It is shown that crater defects were found on the surface after the irradiation of HCPEB and the density of craters will decrease with increasing pulses times. When treated by 27Kev accelerating voltage, with increasing pulse times, the particles located in surface layer were obviously refined .The surface roughness, hardness, wear properties and corrosion resistance were analyzed after irradiation of HCPEB. The wear resistance and corrosion resistance were obviously enhanced after 10 pulses treatment.

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Periodical:

Advanced Materials Research (Volumes 154-155)

Pages:

1170-1177

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.154-155.1170

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Online since:

October 2010

Authors:

Yuan Fang Chen, Xiao Dong Peng, Jian Jun Hu, Hong Bin Xu, Chan Hao

Keywords:

Corrosion Resistance, Hardness, HCPEB, Microstructure, Roughness, Wear Resistance

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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