Reaction of Second-phase Constituents in Aluminium During Etching in Sodium Hydroxide Based Solutions
Reaction of Second-phase Constituents in Aluminium During Etching in Sodium Hydroxide Based Solutions
复制标题
氢氧化钠溶液蚀刻过程中铝中第二相成分的反应
DOI：
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发表时间：
1969
期刊：
影响因子：
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通讯作者：
P. G. Sheasby
中科院分区：
文献类型：
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作者：
E. Short;P. G. Sheasby
摘要研究了在基于氢氧化钠的溶液中蚀刻过程中基于超纯铝（99-99%纯度）的合金中第二相成分的行为。首先研究了FeAl_3、MnAl_6和α-AlFe_（Si）三元组元和四元组元在氢氧化钠溶液中的腐蚀反应，然后研究了二元组元在氢氧化钠-氟化钠、氢氧化钠-硝酸钠和氢氧化钠-亚硝酸钠溶液中的腐蚀反应。制备含有大组分的样品，在氢氧化钠溶液中进行金相抛光和蚀刻。然后制备标本的横截面并拍照。发现FeAl_3、MnAl_6和α-AlFeSi组分中另一种元素的部分替代可显著改变其相对于基体材料的反应速率。腐蚀液的改性对二元组分的反应影响不大。
SummaryThe behaviour has been studied of second-phase constituents in alloys based on super-purity aluminium (99–99% purity) during etching in solutions based on sodium hydroxide. Firstly the reactions of ternary and quarternary constituents based on FeAl3, MnAl6, and α-AlFeSi during etching in sodium hydroxide were examined and then the reaction of binary constituents in sodium hydroxide-sodium fluoride, sodium hydroxide-sodium nitrate, and sodium hydroxide-sodium nitrite solutions was studied. Specimens prepared to contain large constituents were metal-lographically polished and etched in the sodium hydroxide solutions. Cross-sections of the specimens were then prepared and photographed. It was found that partial substitution of another element in the FeAl3, MnAl6 and α-AlFeSi constituents could markedly change the rate at which it reacted relative to the matrix material. On the other hand, modification of the etching solution was found to have very little effect on the reaction of the binary constituen...