THE INFLUENCE OF NITROGEN AND MOLYBDENUM ON THE SENSITIZATION PROPERTIES OF LOW-CARBON AUSTENITIC STAINLESS-STEELS

被引:41
|
作者
BENEKE, R [1 ]
SANDENBERGH, RF [1 ]
机构
[1] UNIV PRETORIA,DEPT MAT SCI & MET ENGN,PRETORIA 0002,SOUTH AFRICA
关键词
Electrochemistry - Iron and Steel Metallography--Microstructures;
D O I
10.1016/0010-938X(89)90006-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The electrochemical potentiokinetic reactivation technique has been applied to the quantiative assessment of the influence of nitrogen and molybdenum on the sensitization properties of low-carbon austenitic stainless steels. The resulting isosensitization curves show that the addition of nitrogen (up to 0.123%) improves the resistance of molybdenum-containing austenitic stainless steels to sensitization. This effect also occurs in conventional low carbon (0.03%) steels, as well as in steels with a higher carbon content (0.05%). Additions of molybdenum (up to 2.3%) to nitrogen-containing steels improve their resistance to sensitization by retarding the precipitation of chromium carbides.
引用
收藏
页码:543 / &
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