軽金属
Online ISSN : 1880-8018
Print ISSN : 0451-5994
ISSN-L : 0451-5994
ベーマイト皮膜の生成および耐食性におよぼす水の純度の影響
ベーマイト処理法に関する研究(第2報)
山田 啓之岡本 常義
著者情報
ジャーナル フリー

1971 年 21 巻 6 号 p. 405-412

詳細
抄録

The effects of the purity of water upon The formation and corrosion resistance of boehmite film were studied with electron microscope and electron microprobe analyzer.
The following results were obtained.
(1) Boehmite films formed in city water containing various kinds of impurities had smaller thickness and lower corrosion resistance and were more blackish as compared with those formed in deionized water.
(2) The composition and corrosion resistance of boehmite films formed in deionized water were nearly constant independent of the value of specific resistivity, when its value was not lower than 100, 000 Ωcm.
(3) As the results of study with electron microprobe analyzer, it was concluded that the boehmite films formed in city water containing Si and Ca elements showed blackening and the decrease in film thickness and corrosion resistance, all of which chiefly depended upon SiO2, but scarcely upon CaCO3.

著者関連情報
© 社団法人 軽金属学会
前の記事 次の記事
feedback
Top