Premature corrosion failure of a 316L stainless steel plate due to the presence of sigma phase

被引：52

作者：

Conejero, O. ^{[1
]}

Palacios, M. ^{[1
]}

Rivera, S. ^{[1
]}

机构：

[1] Fdn ITMA Ctr Acero, Aviles 33417, Asturias, Spain

来源：

ENGINEERING FAILURE ANALYSIS | 2009年 / 16卷 / 03期

关键词：

Sigma phase; Corrosion; PRECIPITATION;

D O I：

10.1016/j.engfailanal.2008.06.022

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A 316L austenitic stainless steel plate, exposed to a sulphuric acid environment, has suffered an abnormal corrosion attack. The metallographic examination demonstrated a large amount of sigma phase that was related to the failure. Sigma phase, which is very common in duplex stainless steels, removes chromium and molybdenum from the metal matrix, damaging the corrosion performance of the steel. In this case, the sigma phase was found in an austenitic stainless steel, producing a significant corrosion attack. The sigma phase was formed during the fabrication process of the steel. (C) 2009 Published by Elsevier Ltd.

引用

页码：699 / 704

页数：6

共 9 条

[1] Determination of susceptibility to intergranular corrosion and electrochemical reactivation behaviour of AISI 316L type stainless steel [J].