マリンエンジニアリング
Online ISSN : 1884-3778
Print ISSN : 1346-1427
ISSN-L : 1346-1427
46 巻 , 5 号
選択された号の論文の30件中1~30を表示しています
特集 マリンエンジニアリングと表面処理技術 -現状と将来
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  • 谷 和美
    2011 年 46 巻 5 号 p. 678-683
    発行日: 2011年
    公開日: 2013/10/23
    ジャーナル フリー
     The dominant factors that control the performances of thermally sprayed coatings are usually physical, chemical, mechanical, and electrical and so on. However, the actual performances of thermally sprayed coatings in industrial fields have not been always determined by these fundamental factors. The reason why the difference occurs is the existence of interaction between sprayed coating and the environment where the coatings are exposed and contacted. The performance of sprayed coatings tends to be influenced by the environment. Thermal spraying modification and its interaction with the environment are reviewed, and the supporting component technology employed is discussed.
解説
技術資料
  • 次重 彰人, 河内 啓輔, 古川 崇
    2011 年 46 巻 5 号 p. 694-697
    発行日: 2011年
    公開日: 2013/10/23
    ジャーナル フリー
     IHI has developed the revolutionary coating and cladding technology, named MSCoating®, which can stably built up the functional coating and cladding, and is expected to replace for the plating, welding and plasma spraying. Fundamental tests for application to aero-engines were carried out and MSCoating® has shown the better performance than the existing methods. Many functional capabilities to increase the efficiency of the aero-engines were developed: the anti-wear coating, abrasive coating, and the overlay coating.
     Further applications not only for aero-engine field but also for a wide variety of fields such as the automobile, the medical field are expected.
  • 村上 健児
    2011 年 46 巻 5 号 p. 698-703
    発行日: 2011年
    公開日: 2013/10/23
    ジャーナル フリー
     To develop thermal spray coatings with corrosion protection and anti-fouling properties, aluminum-copper alloy powders, aluminum-copper blend powders, aluminum-zinc blend powders and a zinc powder are flame sprayed onto a steel substrate and the coatings are immersed in the sea and regularly monitored. Some of the substrates are treated with an aluminum under-coat prior to the spraying of the above-mentioned coatings.
     The aluminum-copper alloy coatings have poor anti-fouling properties, and the substrate starts to rust after a few months’ immersion in the sea. Although the anti-fouling properties of the aluminum-copper blend coating is improved with increasing copper content, rusting of the steel substrate occurs on the coating with high copper content.
     The zinc coatings and the aluminum-zinc blend coatings with high zinc content possess both corrosion protection and anti-fouling properties. It was found that the zinc phase in the aluminum-zinc blend coatings preferentially react with the sea water and the content of the metallic zinc phase in the coatings decreases with the immersion time of the coatings in the sea. The aluminum under-coat has little influence on the anti-fouling properties of the aluminum-copper blend coatings and the aluminum-zinc blend coatings, while the formation of the white rust on the coatings is enhanced.
特集 舶用機器における電気・電子・情報システムの進化
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