Formation of Surface Nanoaustenite and Properties of 3Cr13 Steel Induced by Pulsed Electron Beam Irradiation under Melting Mode

Le Ji; Jie Cai; Shi Chao Liu; Zai Qiang Zhang; Xiu Li Hou; Yi Ping Lv; Qing Feng Guan

doi:10.4028/www.scientific.net/AMR.787.363

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 787Formation of Surface Nanoaustenite and Properties...

Formation of Surface Nanoaustenite and Properties of 3Cr13 Steel Induced by Pulsed Electron Beam Irradiation under Melting Mode

Abstract:

The surface of 3Cr13 martensitic stainless steel was irradiated by high current pulsed electron beam (HCPEB). The microstructures of the irradiation surface were characterized by X-ray diffraction and electron microscopy. After HCPEB irradiation, formation of a melting layer with depth of about 4 μm on the irradiated surface was determined. Further microstructural investigations indicate that the surface melted layer consists of nanoaustenite and ultrafine carbide particles, which primarily appear at grain boundary triple junction. Additionally, the microhardness and corrosion resistance of the irradiated surfaces was improved significantly. The formation of the nanoaustenite layer induced by HCPEB irradiation was believed to be the dominating reasons for the improvement of comprehensive performance of the material surface.

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Periodical:

Advanced Materials Research (Volume 787)

Pages:

363-366

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.787.363

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Online since:

September 2013

Authors:

Le Ji, Jie Cai, Shi Chao Liu, Zai Qiang Zhang, Xiu Li Hou, Yi Ping Lv, Qing Feng Guan

Keywords:

3Cr13 Martensitic Stainless Steel Microstructure, Corrosion Resistance, High Current Pulsed Electron Beam (HCPEB), Nano Austenite

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