Study on Strengthen of Metal Surface with Nanosecond Intense Pulsed Electron Beams

LIU Zhi-jian; LE Xiao-yun; JIANG Xing-liu

doi:10.11804/NuclPhysRev.22.01.118

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LIU Zhi-jian, LE Xiao-yun, JIANG Xing-liu. Study on Strengthen of Metal Surface with Nanosecond Intense Pulsed Electron Beams[J]. Nuclear Physics Review, 2005, 22(1): 118-121. doi: 10.11804/NuclPhysRev.22.01.118

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LIU Zhi-jian, LE Xiao-yun, JIANG Xing-liu. Study on Strengthen of Metal Surface with Nanosecond Intense Pulsed Electron Beams[J]. Nuclear Physics Review, 2005, 22(1): 118-121. doi: 10.11804/NuclPhysRev.22.01.118

Study on Strengthen of Metal Surface with Nanosecond Intense Pulsed Electron Beams

doi: 10.11804/NuclPhysRev.22.01.118

Department of Applied Physics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2005-03-20

Abstract

High power density electron beams generated by multiplate pseudospark discharge chamber, have been used to bombard various kinds of steel targets such as 45#, 65Mn, T8, 9Cr18, GCr15, etc, and studyits applications for modification of metal surface. The microhardness and corrosive resistance property have been measured and the morphology was obtained by using SEM analysis. The results showed that the surface properties and structure of the matevials bom barded have been modified; in the bombarded center area, the microhardness as well as corrosive resistance property was improved obviously. The interactions befween the electron beam and metal materials were theoretically considered and discussed on the basis of simple calculation with one dimensional thermal transfer equation. It showed that the cooling rate of metal surface with 1.2×1012 ℃/s was so high that caused the metal surface instant melted, and abrupt cooled.
- pulsed electron beam,
- pseudospark,
- surface modification
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Study on Strengthen of Metal Surface with Nanosecond Intense Pulsed Electron Beams

doi: 10.11804/NuclPhysRev.22.01.118

Department of Applied Physics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2005-03-20

Key words:

Abstract: High power density electron beams generated by multiplate pseudospark discharge chamber, have been used to bombard various kinds of steel targets such as 45#, 65Mn, T8, 9Cr18, GCr15, etc, and studyits applications for modification of metal surface. The microhardness and corrosive resistance property have been measured and the morphology was obtained by using SEM analysis. The results showed that the surface properties and structure of the matevials bom barded have been modified; in the bombarded center area, the microhardness as well as corrosive resistance property was improved obviously. The interactions befween the electron beam and metal materials were theoretically considered and discussed on the basis of simple calculation with one dimensional thermal transfer equation. It showed that the cooling rate of metal surface with 1.2×1012 ℃/s was so high that caused the metal surface instant melted, and abrupt cooled.

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