Localized corrosion of laser marked M340 martensitic stainless steel for biomedical applications studied by the scanning vibrating electrode technique under polarization
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- 作者：Sara M. Manhaboscoa ; smanhabosco@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Á ; lvaro Pritzel dos Santosa ; alvaropritzel@yahoo.com.br" class="auth_mail" title="E-mail the corresponding author ; Marcelo L. Marcolina ; mdlmarcolin@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Eurico F. Pierettib ; efpieretti@usp.br" class="auth_mail" title="E-mail the corresponding author ; Mauricio D.M. Nevesb ; mdneves@ipen.br" class="auth_mail" title="E-mail the corresponding author ; Luí ; s F.P. Dicka ; 1 ; lfdick@ufrgs.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Martensitic steel ; M340 ; SVET under polarization ; laser marking ; pitting
- 刊名：Electrochimica Acta
- 出版年：2016
- 出版时间：10 May 2016
- 年：2016
- 卷：200
- 期：Complete
- 页码：189-196
- 全文大小：3156 K
文摘
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Corrosion of laser marked (LM) martensitic M340 SS in 0.1 M NaCl studied using SVET.
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LM produces Cr-depleted regions due to selective volatilization and oxidation.
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LM causes active dissolution of M340 SS stainless steel.
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LM decreases Epit by 200 mV and Erepassivation by 250 mV.
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Formation of preferential cathodic sites are also associated to LM.