A study on the intergranular corrosion-fatigue failure of the Zn-Al alloy solenoid valve

被引：2

作者：

Lachowicz, Marzena Malgorzata ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Fac Mech Engn, Dept Mat Sci Welding Engn & Strength Mat, Smoluchowskiego 25, PL-50372 Wroclaw, Poland

来源：

ENGINEERING FAILURE ANALYSIS | 2019年 / 103卷

关键词：

Zinc alloys; Intergranular corrosion; Microstructure; Solenoid valve; MICROSTRUCTURE; RESISTANCE; COATINGS; PERFORMANCE; MORPHOLOGY; MG;

D O I：

10.1016/j.engfailanal.2019.04.070

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The purpose of the performed studies was determining causes of the solenoid valve corrosion which appeared during its operation. As a result of the performed macroscopic observations it has been found that the cause of the corrosion was its unsealing. It led to strong corrosion of the solenoid valve body from its internal surface in the vicinity of the seat as the result of the chloride ions action. This caused covering of its surface with white corrosion products characteristic for zinc alloys. The resulting corrosion was of the intergranular nature and it propagated over grain boundaries and the interdendritic areas leading to decrease in the active cross-section of the part.

引用

页码：184 / 194

页数：11

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