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。
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.
作者
曹安港
宗浩
刘欣欣
赵显涛
CAO Angang;ZONG Hao;LIU Xinxin;ZHAO Xiantao(School of Mechanical Engineering,Zhengzhou University of Science and Technology,Zhengzhou 450064,China;The 703 Research Institute of CSSC,Harbin 150078,China)
出处
《腐蚀与防护》
CAS
CSCD
北大核心
2024年第7期84-89,共6页
Corrosion & Protection
基金
河南省高等学校重点科研项目(24A460023)。
