Thermally diffused antimony and zinc coatings on magnesium alloys AZ31

被引：12

作者：

Chen, Y. ^{[1
,2
]}

Liu, T. M. ^{[1
,2
]}

Lu, L. W. ^{[1
,2
]}

Wang, Z. C. ^{[3
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Chongqing Univ, Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China

[3] Tohoku Univ, Adv Inst Mat Res, World Premier Int Res Ctr, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

SURFACE ENGINEERING | 2012年 / 28卷 / 05期

关键词：

Mg alloys; Surface coating; Thermal diffusion of Sb and Zn; Microstructure; Mechanical and corrosion properties; CORROSION BEHAVIOR; MECHANICAL-PROPERTIES; SURFACE-TREATMENT; SB ADDITIONS; RESISTANCE; AZ91D; MICROSTRUCTURE;

D O I：

10.1179/1743294411Y.0000000019

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Surface coating often alters or improves the performances of materials. In Mg alloys, surface treatment plays a key role in rendering them appropriate for widespread applications. Here, a thermal diffusion method of antimony and zinc is applied to deal with the surface of Mg alloys AZ31 in order to improve their functionalities. It is found that several compounds are newly generated in the coating layers, which, as a result, enhance the mechanical property and corrosion resistance considerably. By taking into account a variety of treatment temperatures and times, the sample treated by the mixed Sb and Zn powder at 753 K for 6 h is found to exhibit optimal comprehensive properties with a hardness of over 200 HV and the strongest corrosion resistance. This technique may be important for the technological improvement of surfaces of engineering Mg alloys.

引用

页码：382 / 386

页数：5

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