摘要
采用FeCl_35g+HCl 50mL+H_2O 100mL、HCl 50mL+HNO_3350mL+H_2O 100mL作为两种侵蚀剂,研究了这两种侵蚀剂在不同时间段对316L奥氏体不锈钢显微组织的侵蚀效果。实验结果表明,采用HCl 50mL+HNO_3350mL+H_2O 100mL可以侵蚀出不锈钢显微组织,但在光学显微镜下奥氏体组织晶界显示不明显,且侵蚀时间较长;FeCl_35g+HCl 50mL+H_2O 100mL可以很好地显示出奥氏体组织晶界,随着侵蚀时间的增加奥氏体组织晶界愈来愈明显,在光学显微镜500倍下易清晰地观察。
FeCl3（5 g）, HCl（50 mL） and H2O（100 mL） mixed solution and HCl（50 mL）, HNO3（350 mL） and H2O（100 mL） mixed solution were used as two different erodents for examination of mi-crostructure of 316 L austenitic stainless steel. The experimental results show that although the micro-structure stainless steels can be observed by the latter erodent, the austenite grain boundaries are not obvious under optical microscope and the erosion time is long. The former erodent can show the austen-ite grain boundaries clearly, which become more and more obvious with increasing erosion time and can be easily founded under optical microscope 500 times.
作者
班朝磊
倪俊杰
沈正军
房超
李育丰
BAN Chao-lei;NI Jun-jie;SHEN Zheng-jun;FANG Chao;LI Yu-feng(College of Materials Science and Technology, Liaocheng University, Liaocheng 252000, Chin)
出处
《实验室科学》
2017年第6期13-15,共3页
Laboratory Science
基金
山东省本科高校教学改革研究项目(项目编号:2015M051)
聊城大学实验技术研究项目(项目编号:LDSY2014002)
关键词
奥氏体不锈钢
侵蚀剂
侵蚀机理
侵蚀效果
austenitic stainless steeL
erodent
erosion mechanism
erosion effect
