ELECTROCHEMICAL AND MICROSTRUCTURAL INVESTIGATION OF GRAIN-BOUNDARY PRECIPITATION IN AISI 304 STAINLESS-STEELS CONTAINING NITROGEN

被引：52

作者：

BETRABET, HS

NISHIMOTO, K

WILDE, BE

CLARK, WAT

机构：

[1] Ohio State Univ, Columbus, OH, USA, Ohio State Univ, Columbus, OH, USA

来源：

CORROSION | 1987年 / 43卷 / 02期

关键词：

IRON AND STEEL METALLOGRAPHY - Precipitation;

D O I：

10.5006/1.3583121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An analytical electron microscopy (AEM) study was conducted to determine the mechanisms by which N affects Cr carbide precipitation and the associated CR depletion at grain boundaries. N additions up to 0. 16 wt% retard sensitization, but above 0. 16 wt%, they promote it. The increase in the degree of sensitization for Cr contents above 0. 16 wt% results from Cr carbides precipitating discontinuously which resulted in grain boundary migration, hence wider Cr-depleted zones.

引用

页码：77 / 84

页数：8