THE SENSITIZATION AND STRESS-CORROSION CRACKING OF NITROGEN-CONTAINING STAINLESS-STEELS

被引：40

作者：

DUTTA, RS

DE, PK

GADIYAR, HS

机构：

[1] Metallurgy Division, Bhabha Atomic Research Centre, Bombay, 400 085, Trombay

来源：

CORROSION SCIENCE | 1993年 / 34卷 / 01期

关键词：

D O I：

10.1016/0010-938X(93)90258-I

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The isothermal time-temperature-sensitization (TTS) diagrams of two nitrogen containing austenitic-type stainless steels (SS) namely 316 LN-B (0.019 C, 0.16 N) and 316 LN-C (0.027 C, 0.19 N) have been established. Electrochemical potentiokinetic reactivation (EPR) tests have been performed on a few samples. 316 LN-B shows better resistance to sensitization than 316 LN-C. Cr2N precipitate is detected in 316 LN-C. Constant strain tests of two alloys in 260-degrees-C water-containing chlorides have shown that the cracking mode is microstructure-dependent. Ageing at 750-degrees-C for 7.5 h makes these alloys susceptible to intergranular stress corrosion cracking (IGSCC) as indicated by stow strain rate tensile (SSRT) tests in 250-degrees-C water.

引用

页码：51 / 60

页数：10

共 21 条

[1]

Andrew K.W., 1971, INTERPRETATION ELECT

[2] THE INFLUENCE OF NITROGEN AND MOLYBDENUM ON THE SENSITIZATION PROPERTIES OF LOW-CARBON AUSTENITIC STAINLESS-STEELS [J].