海洋環境におけるアルミニウムおよびアルミニウム合金のフレッチング摩耗

概要

論文の詳細を見る
Stainless steel, titanium alloys and aluminum alloys are metallic materials widely used in the marine environment, by reason of their excellent anticorrosion character. The characteristics of these materials depend strongly on the passivity film over their surface, which is a very thin oxide film with intensively chemical stability. Therefore, if a repeated load accompanied by wear such as fretting works on these materials, the thin film may be successively destroyed and the surface of metal is exposed directly to the environment. The question arises whether or not the anticorrosion quality could be maintained. This study is a basic experimental investigation to shed light on the question. In this paper, the author reports the fretting wear of aluminum and its alloys in some surroundings. The chief measuring items in fretting processes are wearing volume, variation of friction and dropping down of electrode potential of materials. According to the experiment, some interesting results are obtained, which are characteristic of aluminum and its alloys.
1994-04-25