Corrosion behavior of zirconium based alloys in simulated body fluids

Yusuke Tsutsumi, Yousuke Takano, Hisashi Doi, Kazuhiko Noda, Takao Hanawa

研究成果: Conference contribution

6 被引用数 (Scopus)

抄録

The corrosion behavior of Zr-Ti and Zr-Hf alloys with various concentrations in properly deaerated Hanks' solution were investigated by electrochemical techniques. The effects of the thermal treatment with the purpose of homogenization of chemical composition on the pitting potentials of the Zr-Ti alloys were also examined. The results indicated that sufficient addition of Ti to Zr improved its corrosion resistance, especially in terms of the pitting potential and the passive current density. On the other hand, addition of Hf totally lowered the corrosion resistance of the alloy. The thermal treatment improved the pitting corrosion property of Zr-Ti alloys, and Zr alloys with over 5mol% Ti showed much higher pitting potentials than that of pure Zr. The treatment also improved the reproducibility of the measurement and narrowed the data scattering. This phenomenon was discussed with the model of rapidly-cooled metallographic structure.

本文言語English
ホスト出版物のタイトルSelected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
出版社Trans Tech Publications Ltd
ページ1489-1492
ページ数4
PART 2
ISBN(印刷版)0878494626, 9780878494620
DOI
出版ステータスPublished - 2007
イベント6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6 - Jeju, Korea, Republic of
継続期間: 2007 11 52007 11 9

出版物シリーズ

名前Materials Science Forum
番号PART 2
561-565
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Conference

Conference6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
国/地域Korea, Republic of
CityJeju
Period07/11/507/11/9

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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