装备环境工程
裝備環境工程
장비배경공정
EQUIPMENT ENVIRONMENTAL ENGINEERING
2013年
6期
1-4
,共4页
郭为民%张慧霞%侯建%程文华%郑家青
郭為民%張慧霞%侯建%程文華%鄭傢青
곽위민%장혜하%후건%정문화%정가청
钝化金属%电偶腐蚀%钝化膜
鈍化金屬%電偶腐蝕%鈍化膜
둔화금속%전우부식%둔화막
passive metal%galvanic corrosion%passive film
根据美国深海环境试验取得的数据和我国表层海水取得的数据,可知钛合金TA2与不锈钢SS316在海洋环境中无电偶腐蚀倾向,实际使用中SS316却出现了严重的电偶腐蚀。针对这一问题,在深海和模拟深海环境中对TA2和SS316的电偶腐蚀性能进行了研究,结果表明,静态下TA2和SS316无电偶腐蚀产生;当两种金属相互摩擦使SS316钝化膜破损时,产生电偶腐蚀,SS316为偶对中的阳极,会加速腐蚀。
根據美國深海環境試驗取得的數據和我國錶層海水取得的數據,可知鈦閤金TA2與不鏽鋼SS316在海洋環境中無電偶腐蝕傾嚮,實際使用中SS316卻齣現瞭嚴重的電偶腐蝕。針對這一問題,在深海和模擬深海環境中對TA2和SS316的電偶腐蝕性能進行瞭研究,結果錶明,靜態下TA2和SS316無電偶腐蝕產生;噹兩種金屬相互摩抆使SS316鈍化膜破損時,產生電偶腐蝕,SS316為偶對中的暘極,會加速腐蝕。
근거미국심해배경시험취득적수거화아국표층해수취득적수거,가지태합금TA2여불수강SS316재해양배경중무전우부식경향,실제사용중SS316각출현료엄중적전우부식。침대저일문제,재심해화모의심해배경중대TA2화SS316적전우부식성능진행료연구,결과표명,정태하TA2화SS316무전우부식산생;당량충금속상호마찰사SS316둔화막파손시,산생전우부식,SS316위우대중적양겁,회가속부식。
According to the deep sea environment test data obtained from USA and the shallow seawater data from our country, TA2 and SS316 will not behave galvanic corrosion tendency in the deep sea. However, during the practical use, SS316 appears the severe galvanic corrosion. In practical and simulated deep sea environment, there is no galvanic corrosion between the static TA2 and SS316. However, if there is abrasion between the two metals to damage the passive film on SS316, the galvanic corrosion will occur. SS316 will work as the anode to accelerate the corrosion.