CORROSION OF 2.25CR-1MO FERRITIC STEEL IN SULFURIC-ACID AND SEA-WATER

被引：10

作者：

SINGH, RP ^{[1
]}

MODI, OP ^{[1
]}

MUNGOLE, MN ^{[1
]}

SINGH, KP ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT MET ENGN,KANPUR 208016,UTTAR PRADESH,INDIA

来源：

BRITISH CORROSION JOURNAL | 1985年 / 20卷 / 01期

关键词：

SULFURIC ACID - Corrosive Properties;

D O I：

10.1179/000705985798273028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The corrosion behavior of 2. 25 Cr-1 Mo ferritic steel in different concentrations (0. 05-5N) of sulphuric acid and in sea water has been studied by potentiodynamic polarization measurements. The experiments were performed on steels in two different conditions, cold worked and annealed at 850 degree C for 2 h in vacuum (0. 1 Pa), and the effect of microstructure was also analyzed. The annealed samples show better corrosion resistance than cold worked ones, in both sulphuric acid and sea water. The passivation current, passivation potential, and corrosion current all increase with increasing acidity, while the corrosion potential decreases. The present results are compared with available literature data for iron and iron-chromium alloys with different Cr contents in sulphuric acid media. No passivation was observed in sea water.

引用

页码：28 / 31

页数：4