15-5PH不锈钢紧固件在高海水盐雾环境中的应用
Application of 15-5PH Stainless Steel Fasteners in High Seawater Salt Fog Environment
曹安港 1宗浩 2刘欣欣 2赵显涛1
作者信息
- 1. 郑州科技学院机械工程学院,郑州 450064
- 2. 中国船舶集团公司第七〇三研究所,哈尔滨 150078
- 折叠
摘要
C01型膜盘联轴器在工作过程时,长期处于高浓度的海水盐雾环境中,联轴器的紧固件材料不但要有较高的力学性能,而且应具有较强的耐海水盐雾腐蚀性能.通过点蚀、缝隙腐蚀、应力腐蚀、疲劳腐蚀、电偶腐蚀等试验,测试了15-5PH(0Cr15Ni5Cu4Nb)不锈钢材料用于膜盘联轴器紧固件的可行性.结果表明:15-5PH不锈钢发生了明显的缝隙腐蚀和轻微的点蚀,但对应力腐蚀和疲劳腐蚀不敏感,且与TC4钛合金耦合后无电化学腐蚀.15-5PH不锈钢可以作为开放海洋环境中TC4钛合金膜盘的紧固件.但应注意避免缝隙腐蚀的发生.
Abstract
The C01 type diaphragm coupling is exposed to high concentrations of seawater salt spray for a long time during operation.The fastener material of the coupling should not only have high mechanical properties,but also have strong resistance to seawater salt spray corrosion.The feasibility of using 15-5PH(0Cr15Ni5Cu4Nb)stainless steel material for diaphragm coupling fasteners was tested through tests such as pitting corrosion,crevice corrosion,stress corrosion,fatigue corrosion,and galvanic corrosion.The results indicate that 15-5PH stainless steel exhibited significant crevice corrosion and slight pitting corrosion,but had no stress corrosion or fatigue corrosion sensigbility.When coupled with TC4 titanium alloy,15-5PH stainless steel had no electrochemical corrosion.15-5PH stainless steel could be used as a fastener for TC4 titanium alloy membrane discs in open marine environments.But attention should be paid to avoiding the occurrence of crevice corrosion.
关键词
15-5PH不锈钢/联轴器紧固件/海水/盐雾/耐蚀性试验Key words
15-5PH stainless steel/coupling fastener/seawater/salt fog/corrosion resistance test引用本文复制引用
基金项目
河南省高等学校重点科研项目(24A460023)
出版年
2024
NETL
NSTL
万方数据