Corrosion behavior of Al-Al3Ni and Al-Al2Cu functionally graded materials fabricated by a centrifugal method

Kazuhiko Noda, Keita Miyahara, Yoshimi Watanabe

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

Intermetallic compounds, such as Al3Ni and Al2Cu, are effective for enhancing the mechanical properties of an alloy. Al-Al 3Ni and Al-Al2Cu functionally graded materials (FGMs) might be attractive materials for advanced materials. Al-Al3Ni and Al-Al2Cu FGMs were fabricated by a centrifugal method; the centrifugal method is an extremely effective method for fabricating FGMs. Al-Al3Ni and Al-Al2Cu FGMs that had a graded distribution of intermetallic compounds could be produced by this in-situ centrifugal method. Particle size, particle shape and the distribution of intermetallic compounds were controlled by varying the content of the alloy element (Ni, Cu) in the master alloy, the cooling rate in casting and the gravity number. The casting mechanism is explained in terms of the microstructures of the Al-Al 3Ni and Al-Al2Cu FGMs fabricated by this method. The corrosion behavior of the FGMs was investigated by electrochemical analysis. Polarization curves of the FGMs in a borate solution were measured by a potentiodynamic method. The presence of Al2Cu exerted a larger effect on the corrosion behavior of the FGMs than Al3Ni. Analysis of the polarization curve parameters was effective for evaluating the corrosion resistance of the FGMs.

本文言語English
ホスト出版物のタイトルMultiscale and Functionally Graded Materials - Proceedings of the International Conference, FGM IX
ページ574-578
ページ数5
DOI
出版ステータスPublished - 2008 3 13
イベント9th International Conference on Multiscale and Functionally Graded Materials, FGM IX - Oahu Island, HI, United States
継続期間: 2006 10 152006 10 18

出版物シリーズ

名前AIP Conference Proceedings
973
ISSN(印刷版)0094-243X
ISSN(電子版)1551-7616

Conference

Conference9th International Conference on Multiscale and Functionally Graded Materials, FGM IX
国/地域United States
CityOahu Island, HI
Period06/10/1506/10/18

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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