CORROSION RESEARCH ROUND‐UP

Abstract

CORROSION BY OILS Study of the real corrosive power of oils. Known laboratory methods of evaluating the corrosive action of lubricating oils may be divided into two groups: (1) potential action (using e.g. the Pinkevich device and DK‐2, the Underwood apparatus, the YaAZ method, etc.) whereby it is possible to determine not the initial corrosive power of the oil, before the start of test, but that developed during oxidation; and (2) the actual or existing aggressive action. The main distinguishing feature of the second group is that the metal test panel or plate is actually in the oil medium already containing aggressive components, but the test conditions are such (short period) that assume or provide for the practically complete absence of oxidation of the oil during the test itself; so that, in such case, the corrosion is excluded due to formation of oxidation products. The present work includes comparison of corrosive power for different metals, study of effect of acid number of the oil, comparative study of anti‐corrosive effect of various additives for different metals, and concentration curves for these additives. Three references.— (N. M. Grad et al., Zh. prikl. Khim., 1960, 33 (7), 1586–1590.)

Citation

(1960), "CORROSION RESEARCH ROUND‐UP", Anti-Corrosion Methods and Materials, Vol. 7 No. 10, pp. 332-335. https://doi.org/10.1108/eb019778