Influence of the heterogeneity of AISI-321 steel on its pitting in chloride-containing media

被引：9

作者：

Narivs'kyi, O. E. ^{[1
]}

机构：

[1] OJSC Pavlogradkhimmash Plant, Pavvlograd, Ukraine

来源：

MATERIALS SCIENCE | 2007年 / 43卷 / 02期

关键词：

Heat Exchanger; Nonmetallic Inclusion; Titanium Nitrides; Sulfide Inclusion; Oxysulfide;

D O I：

10.1007/s11003-007-0029-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose a phenomenological model of the dependence of the critical temperature of pitting (CTP) of AISI-321 steel on its heterogeneity in chloride-containing media. On the basis of results of investigations and the analysis of the available literature data, we use the quantitative volume of nonmetallic inclusions V participating in the process of pitting in AISI-321 steel as a parameter of its heterogeneity. It is shown that the dependence of the CTP of steel on the index V is rectilinear. The results of regression analysis enable us to establish the quantitative CTP-f(V) dependences for aqueous solutions with pH 4-8 and concentrations of chlorides of 350, 400, 500, 550, and 600 mg/liter.

引用

页码：256 / 264

页数：9