著者
佐藤 忠夫 堀米 毅 上田 幹人
出版者
The Surface Finishing Society of Japan
雑誌
表面技術 = The Journal of the Surface Finishing Society of Japan (ISSN:09151869)
巻号頁・発行日
vol.51, no.6, pp.640-645, 2000-06-01
被引用文献数
1

TiB<sub>2</sub> and TiN films were coated by chemical vapor deposition on SKD 61 steel to improve the corrosion resistivity of a diecasting machine in a melted aluminum alloy. The protectivity of the film in the melted aluminum alloy was examined by an immersion test at 900°C and a thermal cycle test between room temperature and 900°C. TiN film, which serves as a binder, greatly improves the adhesion of TiB<sub>2</sub> film on the steel substrate. The thermal cycle test indicated that the optimum thickness of TiB<sub>2</sub> and TiN layers is at 4 and 6μm, respectively. Compared to ion-nitrized steel, steel coated by TiB<sub>2</sub>/TiN exhibits significantly higher degree of corrosion resistivity.
著者
日野 実 村上 浩二 水戸岡 豊 平松 実 西山 俊一 細川 和幸 金谷 輝人
出版者
The Surface Finishing Society of Japan
雑誌
表面技術 = The Journal of the Surface Finishing Society of Japan (ISSN:09151869)
巻号頁・発行日
vol.58, no.8, pp.476-481, 2007-08-01
被引用文献数
1 3

This study examined the effects of alloying elements on zincate treatment and adhesion of electroless Ni-P coating onto various aluminum alloy substrate. Surface morphology of zinc deposition from the single zincate treatment and its adhesion were changed, depending on the alloying element. The zinc deposition from the double zincate treatment became thinly uniform, and the adhesion between aluminum alloy substrate and Ni-P coating was improved irrespective of the alloying element. However, the adhesion of A7075P aluminum alloy was inferior to that of other alloys.