Surface improvement for biocompatibility of ti-6al-4v by dealloying in metallic melt

Yuichi Fukuzumi, Hidemi Kato

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

6 Citations (Scopus)


Dealloying is known to be a powerful method to produce porous materials mainly with noble metals because the mechanism involves the selective dissolution of specific element(s) by corrosion in acid/alkali aqueous solutions. Recently, an alternative dealloying method has been developed by our research group using a metallic melt in place of the corrosive aqueous solution. In this study, using the novel dealloying method using a metallic melt, toxic Al element, was successfully removed from the surface of Ti-6Al-4V, which has been used for biomedical applications, for improving their biocompatibility. The toxic ion release from the overall sample did not effectively decrease because of the substantial surface area that developed using the dealloying method. By optimizing the dealloying conditions to suppress surface area development, drastic improvement in the biocompatibility of this Ti alloy is expected.

Original languageEnglish
Title of host publicationInterface Oral Health Science 2014
Subtitle of host publicationInnovative Research on Biosis-Abiosis Intelligent Interface
PublisherSpringer Japan
Number of pages9
ISBN (Electronic)9784431551928
ISBN (Print)9784431551256
Publication statusPublished - 2015 Jan 1


  • Biocompatibility
  • Dealloying
  • Surface improvement
  • Ti-6Al-4V


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