倪祺航,徐冬红,沈芳明,周健,朱敏

• 1:浙江理工大学机械工程学院
• 2:浙江永正锂电股份有限公司

摘要(Abstract)：

首先对X80钢在1150℃进行不同时间的退火处理,采用扫描电镜观察其退火后的组织,利用电化学工作站、浸泡实验和电化学阻抗谱(EIS)测试等研究了不同退火时间的X80钢在盐渍土壤模拟溶液中的交流腐蚀行为。结果表明:退火后,X80钢组织由晶界清晰可见的多边形铁素体(PF)和珠光体(P)组成,随着退火时间的增加,珠光体的数量随之减少,铁素体的平均晶粒尺寸增大;在有无交流电干扰下,不同退火时间的X80钢呈现出不同的耐蚀性,其耐蚀性随着退火时间的延长而提高;交流电干扰导致阴极反应发生改变,并促进了X80钢的腐蚀;退火20 min的X80钢的腐蚀程度最严重,其表面有明显的点蚀;不同退火时间的X80钢在交流电施加下的腐蚀行为与其微观组织结构密切相关;珠光体的减少降低微电偶腐蚀电池的数量,从而减缓了X80钢的腐蚀;此外,晶粒尺寸的增加有利于提高X80钢的耐腐蚀性能。

关键词(KeyWords)： X80钢;退火处理;耐蚀性;盐渍土壤;珠光体

Abstract:

Keywords:

基金项目(Foundation): 浙江省自然科学基金(LY18E010004);; 浙江理工大学基本科研业务费(22242293-Y)

作者(Author): 倪祺航,徐冬红,沈芳明,周健,朱敏

DOI: 10.13289/j.issn.1009-6264.2024-0566

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