Microstructure evolution occurring in the modified surface of 316L stainless steel under high current pulsed electron beam treatment

2007 ◽  
Vol 253 (12) ◽  
pp. 5349-5354 ◽  
Author(s):  
Shengzhi Hao ◽  
Pingsheng Wu ◽  
Jianxin Zou ◽  
Thierry Grosdidier ◽  
Chuang Dong
Keyword(s):  
Stainless Steel ◽  
Electron Beam ◽  
Microstructure Evolution ◽  
316L Stainless Steel ◽  
Electron Beam Treatment ◽  
High Current ◽  
Pulsed Electron Beam ◽  
Modified Surface

Surface Microstructure and Corrosion Resistance of 316L Stainless Steel after High Current Pulsed Electron Beam Treatment

2007 ◽  
Vol 561-565 ◽  
pp. 2381-2384 ◽  
Author(s):  
Sheng Zhi Hao ◽  
Ping Sheng Wu ◽  
Thierry Grosdidier ◽  
Chuang Dong
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
316L Stainless Steel ◽  
High Current ◽  
X Ray ◽  
Pulsed Electron Beam ◽  
Modified Surface ◽  
Working Parameters ◽  
Refinement Effect ◽  
Modified Surface Layer

HCPEB treatment of 316L stainless steel (SS) was carried out and the microstructure change in the modified surface layer were characterized with optical microscopy and X-ray diffractometry techniques. The evolution regularity of surface craters and grain refinement effect, as well as the preferred orientation of (111) crystal plane occurring in the HCPEB treatment at different working parameters were discussed combining with their influence on corrosion resistance.

Surface Treatment of 316L Stainless Steel by High Current Pulsed Electron Beam

2010 ◽  
Vol 654-656 ◽  
pp. 1803-1806 ◽  
Author(s):  
Sheng Zhi Hao ◽  
Yang Xu ◽  
Min Cai Li ◽  
Chuang Dong
Keyword(s):  
Stainless Steel ◽  
Electron Beam ◽  
Energy Density ◽  
Surface Treatment ◽  
316L Stainless Steel ◽  
Electron Backscatter Diffraction ◽  
Pulse Number ◽  
High Current ◽  
Pulsed Electron Beam ◽  
Working Parameters

High current pulsed electron beam has been developing as a useful tool for surface modification of materials. This paper presents our research on the surface treatment of 316L stainless steel with an equipment of working parameters as electron energy 20-30keV, pulse duration 1.5µs and energy density ~6J/cm2. The surface microstructure was characterized with metallography, X-ray diffractometry and electron backscatter diffraction (EBSD) techniques. It was found that the modified samples showed significant improvement on corrosion resistance when using increased pulse number and higher energy density. This result is discussed in relation to the coupled temperature-stress fields formed after the absorption of electron beam energy.

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