Change in Electrochemical Property of 12%Cr Ferritic Steel in 1M-KOH Solution Due to Creep

被引：3

作者：

Abe, Yousuke ^{[1
]}

Komazaki, Shin-ichi ^{[1
]}

Mitsueda, Toshiki ^{[2
]}

Kohno, Yutaka ^{[1
]}

机构：

[1] Muroran Inst Technol, Dept Mat Sci & Engn, 27-1 Mizumoto Cho, Muroran, Hokkaido 0508585, Japan

[2] Hokkaido Elect Power Co Inc, Ebetsu, Hokkaido 0670033, Japan

来源：

THERMEC 2009 SUPPLEMENT: 6TH INTERNATIONAL CONFERENCE ON PROCESSING & MANUFACTURING OF ADVANCED MATERIALS | 2010年 / 89-91卷

关键词：

Electrochemical method; Nondestructive evaluation; Creep; High chromium ferritic steel; Precipitate; STABILITY;

D O I：

10.4028/www.scientific.net/AMR.89-91.1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electrochemical material characterization method was applied to the creep specimens of 12%Cr ferritic steel to evaluate the changes in precipitates during creep. Experimental results revealed that the peak current densities "I-p1" and "I-p2" appeared at specific potentials during anodic polarization curve measurement in 1M-KOH solution. These peak current densities corresponded to the selective dissolution of several kinds of precipitates, respectively. The I-p2, which reflected the amount of M23C6 and Laves phase, increased more siginificantly with creep than thermal aging. On the other hand, the effect of applied stress was not reflected on the change in I-p1, although it increased with thermal aging and creep as well as the I-p2.

引用

页码：1 / +

页数：6

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