標題: ACOUSTIC-EMISSION CHARACTERIZATION OF A MEDIUM STRENGTH STEEL DURING HYDROGEN PERMEATION PROCESSES
作者: WENG, CC
LIN, GC
CHEN, RT
交大名義發表
土木工程學系
National Chiao Tung University
Department of Civil Engineering
公開日期: 1-Jun-1992
摘要: The characteristics of acoustic emission (AE) signals detected from the hydrogen permeation test of a medium strength steel were investigated. The aims of this research are to study the correlation between the AE signals and the severity of hydrogen-induced damages, and to investigate the relationship between the AE signals and the variation in hydrogen permeation current. In this study, an electrochemical approach using Devanathan's dual-cell method was adopted for the hydrogen permeation test. A total of five specimens were tested with a charging current varying from 10 to 60 mA. From the test results, good correlation was observed between the detected AE signals and the severity of the hydrogen-induced blistering and cracking. Also, it was found that the variation in the hydrogen permeation current showed a close correlation with the detected AE energy and events.
URI: http://hdl.handle.net/11536/3405
ISSN: 0921-5093
期刊: MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume: 154
Issue: 1
起始頁: 51
結束頁: 57
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