点击次数：

论文类型：期刊论文

发表时间：2011-06-01

发表刊物：MATERIALS CHARACTERIZATION

收录刊物：SCIE、EI

卷号：62

期号：6

页面范围：599-605

ISSN号：1044-5803

关键字：Magnesium alloy; High-intensity pulsed ion beam; Irradiation; Corrosion resistance

摘要：High-intensity pulsed ion beam (HIPIB) irradiation of AZ31 magnesium alloy is performed and electrochemical corrosion experiment of irradiated samples is carried out by using potentiodynamic polarization technology in order to explore the effect of HIPIB irradiation on corrosion resistance of magnesium alloy. The surface composition, cross-sectional morphology and microstructure are characterized by using electron probe microanalyzer, optical microscope and transmission electron microscope, respectively. The results indicated that HIPIB irradiation leads to a significant improvement in corrosion resistance of magnesium alloy, in terms of the considerable increase in both corrosion potential and pitting breakdown potential. The microstructural refinement and surface purification induced by HIPIB irradiation are responsible for the improved corrosion resistance. (C) 2011 Elsevier Inc. All rights reserved.