|
|
|
| ACOUSTIC EMISSION CHARACTERISTICS OF HYDROGEN ATTACKED LOW-CARBON STEEL IN TENSILE PROCESS |
| Li Xiaogang;Wang Zhenfu;Chen Hua; Yao Zhiming; Ke Wei(State Key Laboratory of Corrosion Science)(Chinese Academy of Sciences) |
|
|
|
|
Abstract Acoustic emission(AE) behaviour of low-carbon steel samples,which have been attacked upon exposure to hydrogen of 18MPa at temperatures 450℃ and 500℃ for 240,480 and 720 hours respeCtively,was studied during tensile tests.The experimental results showed that hydrogen attack decreased AE activity,but the count of high amplitude AE signals increased.The AE signajs originated from intergranular fraCture caused by coalescence of the micro-bubbles or microcracks on the grain boundaries.
|
|
Received: 25 August 1994
|
Cite this article:
Li Xiaogang;Wang Zhenfu;Chen Hua; Yao Zhiming; Ke Wei(State Key Laboratory of Corrosion Science)(Chinese Academy of Sciences). ACOUSTIC EMISSION CHARACTERISTICS OF HYDROGEN ATTACKED LOW-CARBON STEEL IN TENSILE PROCESS. J Chin Soc Corr Pro, 1994, 14(4): 304-310.
URL:
https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1994/V14/I4/304
|
| 1高坪纯治,山本茂之．I型微裂纹声发射源特性的一维精确分析,日本机械学会论文集(A),1990,56(527):1582高坪纯治,横川洪．氢蚀后钢破断过程的声发射特性,日本机械学会论文集(A),1989,55(509):1583长谷川,估藏．氢蚀损伤的检测技术,溶接学会会志,1987,56(7):3934HeipleCR,CarpenterSH．JournalofAE,1987,6(3):1775袁振明等．声发射技术及其应用,北京:机械工业出版社,19896CarpenterSH．Metall．Trans,1977,8A(10):1629 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
