Chloride-Induced Stress Corrosion Cracking of Oxide-Dispersion-Strengthened Austenitic Steels-Reference-Cited by-同舟云学术

Chloride-Induced Stress Corrosion Cracking of Oxide-Dispersion-Strengthened Austenitic Steels

Published:2017-11-23 Issue:4 Volume:74 Page:424-429
ISSN:0010-9312
Container-title:Corrosion
language:en
Short-container-title:

Author:

Yan Xueliang¹,Wang Fei¹,Jiang Lejun¹,Qiu Xiaoxing¹,Lu Yongfeng²,Nastasi Michael³,Zhou Zhangjian⁴,Cui Bai¹

Affiliation:

1. Department of Mechanical and Materials Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.

2. Department of Electrical Engineering, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.

3. Nebraska Center for Energy Sciences Research, University of Nebraska–Lincoln, Lincoln, Nebraska 68588.

4. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 10083, PR China.

Abstract

The stress corrosion cracking (SCC) behavior of oxide-dispersion-strengthened (ODS) 304 austenitic steels has been investigated in a chloride-rich aqueous environment at 143°C. ODS 304 alloys are found to be more resistant to SCC than the commercial AISI 304 steels. Under a constant tensile load of 177 MPa, the crack growth rate in ODS 304 steels is about one fourth of AISI 304 steels, and the time-to-failure of ODS 304 steels is 7.5 times of AISI 304 steels. Intergranular SCC dominates the fracture surface of AISI 304 steel, while in ODS 304 steel both intergranular and transgranular SCC occur. Electrochemical reactivity tests show ODS 304 steel is less sensitized than AISI 304, likely a result of a low carbon concentration and small grain size.

Publisher

NACE International

Subject

General Materials Science,General Chemical Engineering,General Chemistry

Link

http://meridian.allenpress.com/corrosion/article-pdf/74/4/424/2904996/2664.pdf

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