Surface Modification of Cucr25 Alloy with Cr Coatings Treated by High Current Pulsed Electron Beam

DOI

10.2991/iea-15.2015.2How to use a DOI?

Keywords

CuCr25 alloy; microstructure; high current pulse electron beam; surface modification.

Abstract

CuCr25 alloy samples in this study were coated with Cr and irradiated by high current pulsed electron beam (HCPEB) with intermittently increasing pulse numbers from 1 to 100. The results indicated that with HCPEB treatment, initial Cr particles and coated Cr layer remelted and distributed nonuniformly in Cu. Meanwhile, The Cr particles were significantly refined and the solid solubility of Cr in Cu increased with raising pulse number. The formation of craters was a remarkable feature under pulse number 30 due to the dynamic thermal field created by HCPEB. Another notable characteristic induced by HCPEB were numerous cracks formed as a result of thermal stresses during irradiation when the pulse number was up to 10, then the cracks dissolved when the pulse number increased to more than 50. In addition, a preference of these cracks to Cr particles instead of Cu phase has been also noted.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhou Zhiming
AU  - Xiao Hongmei
AU  - Huang Weijiu
AU  - Tu Jian
AU  - Chen Yuanfang
AU  - Xiao Zhipei
AU  - Luo Tianxing
AU  - Wang Yaping
PY  - 2015/09
DA  - 2015/09
TI  - Surface Modification of Cucr25 Alloy with Cr Coatings Treated by High Current Pulsed Electron Beam
BT  - Proceedings of the AASRI International Conference on Industrial Electronics and Applications (2015)
PB  - Atlantis Press
SP  - 3
EP  - 5
SN  - 2352-5401
UR  - https://doi.org/10.2991/iea-15.2015.2
DO  - 10.2991/iea-15.2015.2
ID  - Zhiming2015/09
ER  -