volume 10, issue 4, P311 2020
DOI: 10.3390/coatings10040311
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Huihui Wang, Lianfu Li, Sen Qiu, Weidong Zhai, Qiaomin Li, Shengzhi Hao

Abstract: High current pulsed electron beam (HCPEB) has recently been developed as an effective technique of material surface modification. In this research, a self-developed HCPEB equipment (HOPE-I) was adopted to perform surface modification on quenched and tempered 40CrNiMo7 steel. A composite nanometer structure was formed on the modified surface layer, and the martensite transformation and the dissolution and fracture of cementite can be observed. After initial irradiation, the high cooling rate caused the formatio…

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