A COMPARISON OF THE CHROMIUM CONCENTRATION ON GRAIN-BOUNDARIES IN SENSITIZED STAINLESS-STEEL MEASURED BY ANALYTICAL ELECTRON-MICROSCOPY AND AN ELECTROCHEMICAL TECHNIQUE

被引：11

作者：

CHEN, JS

RADMILOVIC, V

DEVINE, TM

机构：

[1] UNIV BELGRADE, DEPT PHYS MET, BELGRADE, YUGOSLAVIA

[2] UNIV CALIF BERKELEY, DEPT MAT SCI & MINERAL ENGN, BERKELEY, CA 94720 USA

来源：

CORROSION SCIENCE | 1990年 / 30卷 / 4-5期

关键词：

D O I：

10.1016/0010-938X(90)90052-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A comparison is made between the average chromium concentration along the grain boundaries of sensitized (700°C/110 h) 308 stainless steel measured-by an electrochemical technique and the chromium concentrations measured by analytical electron microscopy (AEM) along a few, randomly selected grain boundaries. The bulk composition of the alloy included 20Cr-12Ni-0.06C, all expressed in wt%. The electrochemical technique indicated that nearly all of the grain boundaries had chromium concentrations between 12.0 and 14.0%. The boundaries measured by AEM had chromium concentrations of ∼13.0%. It is concluded that excellent agreement exists between the electrochemically determined values of chromium at the grain boundaries and those measured by AEM. © 1990.

引用

页码：477 / 494

页数：18

共 22 条

[1]

Bain E. C., 1933, T AM SOC STEEL TREAT, V21, P481

[2] ELECTROCHEMICAL AND MICROSTRUCTURAL INVESTIGATION OF GRAIN-BOUNDARY PRECIPITATION IN AISI 304 STAINLESS-STEELS CONTAINING NITROGEN [J].