In Situ Corrosion Studies:Tracing Interconnecting Threads

Isaacs, H.S.

doi:10.1149/1.2789210

ECS Trans.

2007

DOI: 10.1149/1.2789210

|View full text |Cite

In Situ Corrosion Studies:Tracing Interconnecting Threads

H.S. Isaacs¹

Abstract: Highlights from corrosion investigations are described which trace a history starting with a non-standard impedance method and localized measurements using current density mapping. These approaches led to different avenues of research on stainless steel, carbon steels, and aluminum and associated techniques for measuring surface changes.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2018

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Local pH and Its Evolution Near Mg Alloy Surfaces Exposed to Simulated Body Fluids

Lamaka

González

Mei

et al. 2018

Adv Materials Inter

View full text Add to dashboard Cite

Many reports are available on degradation rates and corrosion product characterization of magnesium alloys for implant application. Typically, the data are obtained ex situ, as post factum analysis of occurred degradation processes or in bulk electrolyte that does not fully reflect concentration gradients at the interface and in the diffusion layer. Meanwhile, these local conditions are essential for tissue‐implant compatibility. Only a limited number of studies employ the techniques that visualize ongoing degradation and are localized enough to observe the changes in the electrolyte layer directly adjacent to corroding magnesium. Here, local pH in Hank's solution is studied in operando, with potentiometric micro‐probes (d = 2 µm) located 10–50 µm above the surface of four Mg alloys potentially relevant for implant applications. A significant difference in local pH is observed for Mg in simple Hank's solution (near surface pH 9.9–10.5) or Hank's solution modified with 2.5 × 10−3 m Ca2+ (pH 7.8–8.5). The corresponding pH values are established during the first seconds of immersion. These findings indicate different degradation kinetics in electrolytes with or without Ca2+. The degradation rate of Mg alloys decreases by almost two times in Ca2+ containing Hank's solution. Calcium‐phosphate/carbonate protective layer stabilizes the surface pH below 8.5 controlling Mg degradation.

show abstract

Local pH and Its Evolution Near Mg Alloy Surfaces Exposed to Simulated Body Fluids

Lamaka

González

Mei

et al. 2018

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

In Situ Corrosion Studies:Tracing Interconnecting Threads

Cited by 1 publication

References 32 publications

Local pH and Its Evolution Near Mg Alloy Surfaces Exposed to Simulated Body Fluids

Local pH and Its Evolution Near Mg Alloy Surfaces Exposed to Simulated Body Fluids

Contact Info

Product

Resources

About