一种模拟裂纹尖端电化学反应的实验方法

中国腐蚀与防护学报

1990, Vol. 10

Issue (3): 233-238

研究报告

本期目录 | 过刊浏览

一种模拟裂纹尖端电化学反应的实验方法

路国强;谢志高;陆毅中

西安交通大学;西安交通大学;西安交通大学

AN EXPERIMENTAL TECHNIQUE SIMULATING ELECTROCHEMICAL REACTION AT CRACK TIP

Lu Guoqiang Xie Zhigao and Lu Yizhong (Xian Jiaotong University)

全文: PDF(443 KB)

摘要: 本文作者设计了在腐蚀介质中瞬时破断试样而获得新鲜金属表面以模拟扩展中裂纹尖端电化学(腐蚀化学)反应的实验技术,运用该技术对40CrNi钢13.5%NaCl溶液体系进行了实验研究。

Abstract：In order to understand the phenomenon and mechanism of environ- ment-enhanced crack growth in high strength steels,it is necessary to study the kinetics of electrochemical reactions occurring at the crack tip.In this paper,an experimental technique for simulating the electrochemical reaction at the crack tip of a propagating crackhas been developed.The small fresh surface of a broken notched specimen immersed in an aqueous solution,was used as the anode,and a fully oxidized large specimen of the same material was used as the cathode. The galvanic current transient between the anode and the cathode was measured immediately when the notched specimen was broken.To de- monstrate this new technique,an electrochemical reaction test for 40CrNi steel in 3.5%NaCl aqueous solution was conducted,and the kinetics equation of the reaction was obtained with the analysis of the test results.

收稿日期: 1990-06-25

基金资助:国家教委博士点基金

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引用本文:

路国强;谢志高;陆毅中. 一种模拟裂纹尖端电化学反应的实验方法[J]. 中国腐蚀与防护学报, 1990, 10(3): 233-238.
. AN EXPERIMENTAL TECHNIQUE SIMULATING ELECTROCHEMICAL REACTION AT CRACK TIP. J Chin Soc Corr Pro, 1990, 10(3): 233-238.

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https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1990/V10/I3/233

[1] Alavi,A.;Miller,C.D.and Wei,R.P.,Corrosion,43(4) ,204(1987)

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