Surface treatment of AZ91D magnesium alloy by aluminum diffusion coating

被引：261

作者：

Shigematsu, I ^{[1
]}

Nakamura, M ^{[1
]}

Saitou, N ^{[1
]}

Shimojima, K ^{[1
]}

机构：

[1] Natl Ind Res Inst Nagoya, Kita Ku, Nagoya, Aichi 462, Japan

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 2000年 / 19卷 / 06期

关键词：

Aluminum - Crystal microstructure - Diffusion coatings - Grain size and shape - Hardness - Heat treatment - Intermetallics - Metallic films - Surface treatment;

D O I：

10.1023/A:1006737200466

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Magnesium-based alloy AZ91D was surface treated by aluminum diffusion coating to obtain a surface coating layer over hundreds-micron. Heat treatment for diffusion coating was performed at 450 °C for 1 h. The thickness of the reacted layer reached about 780 μm. The grain size of the primary γ was 20-30 μm and spacing of lamella structure was 3-4 μm. The hardness of the reacted layer was HV60 of the AZ91D substrate. The hardness was almost unchanged in the reacted layer and the thickness of the hardened layer reached about 780 μm.

引用

页码：473 / 475

页数：3

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