Influence of sulphur content and inclusion distribution on the hydrogen induced blister cracking in pressure vessel and pipeline steels

被引：233

作者：

Domizzi, G ^{[1
]}

Anteri, G ^{[1
]}

Ovejero-García, J ^{[1
]}

机构：

[1] Comis Nacl Energia Atom, CAC, Dept Mat, Gerencia Desarollo, RA-1429 Buenos Aires, DF, Argentina

来源：

CORROSION SCIENCE | 2001年 / 43卷 / 02期

关键词：

steel; pipeline; hydrogen induced cracking; sulphide; sulphur;

D O I：

10.1016/S0010-938X(00)00084-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In previous works, extensive desulphurisation, including shape control and low hardness in segregation zones, were pointed out as effective ways for increasing resistance to hydrogen induced cracking (HIC) in steels exposed to wet H2S environment. In this study, the behaviour of eight plates was evaluated by immersing samples in H2S-saturated NACE solution. HIC susceptibility was assessed by an ultrasonic method and correlated with the elongated MnS inclusion distribution. The results allow us to remark that an extremely low sulphur level is not necessary to reach good HIC resistance, provided that no hard bands are present in the steel. Under this condition, a relationship to calculate the minimum average sulphide length which provides low HIC susceptibility was found. (C) 2001 Elsevier Science Ltd. FLU rights reserved.

引用

页码：325 / 339

页数：15

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