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Rapid Preparation and Characterization of the Surface Microstructures of AISI 304L Austenitic Stainless Steel by High-Current Pulsed Electron Beam
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Jie CAI1, Yang ZOU1, Ming-Zhen WAN1, Dong-Jin PENG1, Yan LI1, Qian-Qian GU1, Qing-Feng GUAN1, 2
Chinese Journal of High Pressure Physics | 2012, 26(6) : 693 - 699
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Chinese Journal of High Pressure Physics | 2012, 26(6): 693-699
Rapid Preparation and Characterization of the Surface Microstructures of AISI 304L Austenitic Stainless Steel by High-Current Pulsed Electron Beam
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Jie CAI1, Yang ZOU1, Ming-Zhen WAN1, Dong-Jin PENG1, Yan LI1, Qian-Qian GU1, Qing-Feng GUAN1, 2
Affiliations
  • 1.College of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
  • 2.State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
Published: 2012-12-15
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High-current pulsed electron beam (HCPEB) technique was used to irradiate the AISI 304L austenitic stainless steel. The vacancy defect clusters of the irradiated surface layer were investigated by using transmission electron microscopy. The experimental results indicated that a large number of supersaturation vacancies involving vacancy dislocation loops and stacking fault tetrahedra (SFT) were induced on the irradiated surface layer after HCPEB irradiation. Additionally, surface morphologies of the irradiated samples were characterized by optical microscope，scanning electron microscope and non-contact optical profiler in detail. It was found that high density, fine and dispersed micropores were inevitably formed. The dominating formation mechanism of surface micropores should be attributed to the migration of large number of vacancies (clusters) defect along line and (or) surface structure defects towards the irradiated near-surface layer during HCPEB bombardment and cause vacancies accumulation. The present results indicate that HCPEB technique is a new method to successfully fabricate the surface porous metallic materials by selecting appropriate materials and adjusting HCPEB process parameters.

high-current pulsed electron beam (HCPEB)  /  304L stainless steel  /  micropore  /  porous material
蔡杰, 邹阳, 万明珍, 彭冬晋, 李艳, 顾倩倩, 关庆丰. AISI 304L奥氏体不锈钢表面微孔结构的强流脉冲电子束快速制备与表征. 高压物理学报, 2012 , 26 (6) : 693 -699 .
Jie CAI, Yang ZOU, Ming-Zhen WAN, Dong-Jin PENG, Yan LI, Qian-Qian GU, Qing-Feng GUAN. Rapid Preparation and Characterization of the Surface Microstructures of AISI 304L Austenitic Stainless Steel by High-Current Pulsed Electron Beam[J]. Chinese Journal of High Pressure Physics, 2012 , 26 (6) : 693 -699 .
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Article Info
  • Receive Date：2011-04-26
  • Online Date：2026-11-05
  • Published：2012-12-15
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History
  • Received：2011-04-26
  • Revised：2011-06-22
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Affiliations
    1.College of Material Science and Engineering, Jiangsu University, Zhenjiang 212013, China
    2.State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
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表12种不同金属材料的力学参数
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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