黄亚玲,罗建东,林育周

• 1:华南理工大学机械与汽车工程学院
• 2:深圳市华宇发真空离子技术有限公司

摘要(Abstract)：

采用原子力显微镜,X射线光电子能谱、阳极极化曲线和Mott-Schottky曲线分析氩气和氢气轰击对304奥氏体不锈钢表面的微观形貌、元素含量以及耐蚀性能的影响。结果表明:气体轰击后,304奥氏体不锈钢试样表面产生均匀分布的锥形凸起;氩气轰击使表面变得更粗糙,钝化膜中Fe、Cr元素和Cr_2O_3的含量都降低,而且Ar~+对Cr原子择优溅射;Ar~+在阴极位降区获得的电场能比H~+大,轰击作用更强;氩气轰击后试样耐蚀性下降,钝化膜中含有的氧空穴缺陷比轰击前增多近两个数量级,更容易发生点蚀;而氢气轰击对表面粗糙度,元素含量和耐蚀性几乎没有影响。

关键词(KeyWords)： 氩气轰击;奥氏体不锈钢;钝化膜;腐蚀机理

Abstract:

Keywords:

基金项目(Foundation): 华南理工大学科研基金(x2jq-D170170)

作者(Author): 黄亚玲,罗建东,林育周

DOI: 10.13289/j.issn.1009-6264.2018-0056

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