| Application of Acoustic Emission to the Study on Cathodic Polarization and SCC for High Strength Steels |
| |
| 引用本文： | 朱自勇,V.A.Marichev. Application of Acoustic Emission to the Study on Cathodic Polarization and SCC for High Strength Steels[J]. 材料科学技术学报, 1990, 6(2): 88-91 |
| |
| 作者姓名： | 朱自勇 V.A.Marichev |
| |
| 作者单位： | Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow，117171，USSR，Institute of Physical Chemistry of the Academy of Sciences of the USSR，Moscow，117171，USSR |
| |
| 摘 要： | The ambiguous effect of cathodic polarization onSCC of two high strength steels in 0.1 M Na_2HPO_4 and0.1 M NaNO_3 has been investigated by means of meas-uring electric resistance(R)and recording acoustic emis-sion(AE)signals simultaneously.Results showed that AEsensitivity strongly depends on K value in different solu-tions.Both anodic and cathodic polarization can acceler-ate crack growth rate at high K values,but it appears thatthere are only subtle differences in their AEcharacteristics.AE signals only reflect the macroprocessesof crack growth rather than the elementary ones and cannot be used for identification of the micro-mechanisms ofSCC.
|
| 收稿时间： | 1990-03-28 |
Application of Acoustic Emission to the Study on Cathodic Polarization and SCC for High Strength Steels |
| |
| ZHU Ziyong V.A.Marichev Institute of Physical Chemistry of the Academy of Sciences of the USSR,Moscow,,USSR.. Application of Acoustic Emission to the Study on Cathodic Polarization and SCC for High Strength Steels[J]. Journal of Materials Science & Technology, 1990, 6(2): 88-91 |
| |
| Authors: | ZHU Ziyong V.A.Marichev Institute of Physical Chemistry of the Academy of Sciences of the USSR Moscow USSR. |
| |
| Abstract: | The ambiguous effect of cathodic polarization on SCC of two high strength steels in 0.1 M Na_2HPO_4 and 0.1 M NaNO_3 has been investigated by means of meas- uring electric resistance(R)and recording acoustic emis- sion(AE)signals simultaneously.Results showed that AE sensitivity strongly depends on K value in different solu- tions.Both anodic and cathodic polarization can acceler- ate crack growth rate at high K values,but it appears that there are only subtle differences in their AE characteristics.AE signals only reflect the macroprocesses of crack growth rather than the elementary ones and can not be used for identification of the micro-mechanisms of SCC. |
| |
| Keywords: | acoustic emission cathodic polarization SCC high strength steel |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《材料科学技术学报》浏览原始摘要信息 |
|
点击此处可从《材料科学技术学报》下载全文 |
