ATMOSPHERIC CORROSION OF 304AND 316 STAINLESS STEELS

被引：0
|
作者：
J.S.Lu 1)
机构：
来源：
Acta Metallurgica Sinica(English Letters) | 1999年 / 05期
关键词：
atmospheric corrosion; stainless steel; Cr and Ni dissolution; rain water;
D O I：
暂无
中图分类号：
TG172.3 [大气腐蚀、气体腐蚀];
学科分类号：
080503 ;
摘要：
Atmospheric corrosion of 304 and 316 stainless steels was studied by field exposure test, in which rain water was collected and analyzed by atomic absorption spectroscope (AAS). Emphasis was put on the dissolution of chromium and nickel from the stainless steels by atmospheric corrosion and rain runoff. AAS analyses shows that the amounts of yearly chromium and nickel dissolution were less than 150ng/cm 2 and 50ng/cm 2 respectively for both 304 and 316 stainless steels. XPS analysis reveals the marked Cr enrichment on the 316 stainless steel after one year field exposure. SEM shows the morphology of corrosion pits on the steel surfaces.
引用
收藏
页码：958 / 961
页数：4
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