SURFACE MODIFICATION OF METALLIC MATERIALS BY HIGH CURRENT PULSED ELECTRON BEAM
High current pulsed electron beam (HCPEB) has been developing as a useful tool for surface modification of materials. This paper presents our research work on surface modification of metallic materials, such as mold steel, stainless steel and magnesium alloy, with a HCPEB equipment of working parameters as electron energy 27keV, pulse duration ~lus and energy density ～5J/cm2. Investigations performed have shown that the most pronounced changes of phase-structure state and properties occurring in the near-surface layer. The formation mechanism of surface craters and their evolution regularity are discussed based on the elucidation of non-equilibrium temperature filed and different kinds of stress formed during pulsed electron beam treatment. After the HCPEB treatments, samples show significant improvements in measurements of wear and corrosion resistance.
Surface modification high current pulse electron beam microstructure wear corrosion
SHENGZHI HAO CHUANG DONG MINCAI LI XIANGDONG ZHANG PINGSHENG WU
State Key Laboratory for Material Modification by Laser, Ion and Electron Beams, Dalian University o School of Material Science and Engineering, Dalian University of Technology, Dalian, Peoples Republ
国际会议
第五届先进材料与加工国际会议(Fifth International Conference on Advanced Materials and Processing ICAMP-5)
哈尔滨
英文
1713-1718
2008-09-03（万方平台首次上网日期，不代表论文的发表时间）