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Related Concept Videos

Corrosion02:49

Corrosion

28.8K
The degradation of metals due to natural electrochemical processes is known as corrosion. Rust formation on iron, tarnishing of silver, and the blue-green patina that develops on copper are examples of corrosion. Corrosion involves the oxidation of metals. Sometimes it is protective, such as the oxidation of copper or aluminum, wherein a protective layer of metal oxide or its derivatives forms on the surface, protecting the underlying metal from further oxidation. In other cases, corrosion is...
28.8K

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Potentiodynamic Corrosion Testing
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Corrosion and surface modification on biocompatible metals: A review.

R I M Asri1, W S W Harun2, M Samykano3

  • 1Institute of Postgraduate Studies, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300 Kuantan, Pahang, Malaysia.

Materials Science & Engineering. C, Materials for Biological Applications
|May 24, 2017
PubMed
Summary

Preventing corrosion in medical implants is vital to avoid adverse body reactions. Surface modifications significantly enhance the corrosion resistance and biocompatibility of metallic implants.

Keywords:
Biocompatible metalCorrosionMedical implantsMetallic-ion releaseSurface modification

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Area of Science:

  • Biomaterials Science
  • Materials Engineering
  • Medical Device Technology

Background:

  • Metallic implants can corrode in the body's fluidic environments, leading to inflammation and allergic reactions.
  • Corrosion of implants poses risks to both the implant's integrity and the patient's health.
  • Biocompatible metals like stainless steel, cobalt-chromium-molybdenum, and titanium alloys are commonly used in implants.

Purpose of the Study:

  • To review the critical role of corrosion prevention in biomaterials.
  • To analyze the effects of corrosion on metallic implants and the human body.
  • To explore various surface modification techniques for improving implant performance.

Main Methods:

  • Focus on biocompatible metals used in implants.
  • Investigate the impact of corrosion on implants and the human body.
  • Discuss surface modification techniques including coating deposition, passivation, ion beam modification, plasma spraying, chemical etching, blasting, electropolishing, and laser treatment.

Main Results:

  • Corrosion of metallic implants can cause adverse biological responses.
  • Surface modification techniques are effective in improving the corrosion resistance of biocompatible metals.
  • Techniques like coating, passivation, and surface texturing enhance implant performance.

Conclusions:

  • Surface modification is the most effective strategy for enhancing the corrosion resistance of biocompatible metals.
  • Improved corrosion resistance leads to superior biocompatibility and osseointegration.
  • Advanced surface treatments are crucial for the long-term success of metallic medical implants.