Effect of Alloying Elements on the Colour Development of Anodised Al-Mg-Si Alloys

被引：1

作者：

Senel, Esma ^{[1
]}

Hallenstvet, Merete ^{[2
]}

机构：

[1] Hydro Aluminium Karmoy, N-4265 Haavik, Norway

[2] Hydro Aluminium AS, N-0240 Oslo, Norway

来源：

ALUMINIUM ALLOYS 2014 - ICAA14 | 2014年 / 794-796卷

关键词：

AlMgSi alloys; anodising; colour measurement; gloss;

D O I：

10.4028/www.scientific.net/MSF.794-796.247

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Colour of the anodised Al-Mg-Si alloys was quantified by spectrophotometric method defining L* (lightness), a* (greenness-redness) and b* (blueness-yellowness) values. All alloys exhibited yellow and green colour. The yellowness of the anodised surfaces increased significantly with the increase of Cu while increasing Mn reduced the greenness. Effect of trace elements V and Ni was negligible while Zn caused slightly yellowness. Fe reduced the lightness of the surfaces, while its effect on colour was insignificant. Smut layer being formed during alkaline etching (prior to anodising) was desmutted/deoxidised in different acid solutions, some of which failed to clean the etched surfaces. Remaining smut however caused minor effect on colour.

引用

页码：247 / +

页数：2