Microstructure of 30SiMn2MoVA Steel Modified by High Current Pulsed Electron Beam

Zhou Zhiming; Chen Guanghai; Yuan Lin; Gu Chengyu; Chen Xi; Li Chengxin

doi:10.15980/j.tzzz.2017.05.002

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Microstructure of 30SiMn2MoVA Steel Modified by High Current Pulsed Electron Beam
Vol. 37, Issue 5, Pages: 469-472(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.05.002

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[1]周志明,陈光海,袁林,谷成渝,陈曦,李成信.强流脉冲电子束表面改性30SiMn2MoVA钢的显微组织[J].特种铸造及有色合金,2017,37(05):469-472.

Zhou Zhiming, Chen Guanghai, Yuan Lin, et al. Microstructure of 30SiMn2MoVA Steel Modified by High Current Pulsed Electron Beam. [J]. Special Casting & Nonferrous Alloys 37(5):469-472(2017)
[1]周志明,陈光海,袁林,谷成渝,陈曦,李成信.强流脉冲电子束表面改性30SiMn2MoVA钢的显微组织[J].特种铸造及有色合金,2017,37(05):469-472. DOI： 10.15980/j.tzzz.2017.05.002.

Zhou Zhiming, Chen Guanghai, Yuan Lin, et al. Microstructure of 30SiMn2MoVA Steel Modified by High Current Pulsed Electron Beam. [J]. Special Casting & Nonferrous Alloys 37(5):469-472(2017) DOI： 10.15980/j.tzzz.2017.05.002.

摘要

研究了不同照射次数强流脉冲电子束表面处理30SiMn2MoVA钢的显微组织。结果表明

经强流脉冲电子束处理后试样表面出现了形状各异、大小不一、分布不均的熔坑;随着照射次数增加

熔坑数量先减少后增加。当照射30次时

合金表面的熔坑最少

在表层形成了一层厚度约8μm的均匀重熔层。合金表层的组织发生了相变

产生了针状马氏体和残余奥氏体。

Abstract

The surface microstructure of 30SiMn2 MoVA steel was observed by using the high current pulsed electron beam with different pulse treatment.The results reveal that some erosion pit with different shapes

sizes and uneven distribution can be observed on the surface of samples after irradiation by the HCPEB treatment.The erosion pits are decreased firstly and then increased with the increase of irradiation of pulses treatment.The erosion pits reach maximum value and the homogeneous remelting layer with 8μm in thickness is generated at 30 pulse treatment.The accicular martensite and retained austeniteare are generated on the surface microstructure of the samples.