科研之友
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摘要
In this work, an attempt for using electrochemical impedance spectroscopy (EIS) to study the development of sulfide stress corrosion cracking (SSCC) in a UNS S41425 supermartensitic stainless steel has been done. Slow strain rate tests have been used to achieve this goal. It was found that when the steel is susceptible to SSCC, both the Bode modulus and phase angle decreased as straining increased between 0.1 and 10 Hz. Electric circuit was used to simulate the EIS data and it was found that both the diffusion layer resistance inside and the crack charge transfer resistance decreased after the yielding point.
- 出版日期2015-7
