AZ91D镁合金表面液相电解渗碳的研究

邹荣; 马颖; 王占营

doi:10.15980/j.tzzz.2015.07.027

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AZ91D镁合金表面液相电解渗碳的研究
Electrolytic Carburising on AZ91D Magnesium Alloy
2015年35卷第7期页码：761-763
纸质出版日期： 2015 ，
DOI： 10.15980/j.tzzz.2015.07.027

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[1]邹荣,马颖,王占营.AZ91D镁合金表面液相电解渗碳的研究[J].特种铸造及有色合金,2015,35(07):761-763.

Zou Rong, Ma Ying, Wang Zhanying. Electrolytic Carburising on AZ91D Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(7):761-763.
[1]邹荣,马颖,王占营.AZ91D镁合金表面液相电解渗碳的研究[J].特种铸造及有色合金,2015,35(07):761-763. DOI： 10.15980/j.tzzz.2015.07.027.

Zou Rong, Ma Ying, Wang Zhanying. Electrolytic Carburising on AZ91D Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2015,35(7):761-763. DOI： 10.15980/j.tzzz.2015.07.027.

摘要

在甘油体系水溶液中

利用液相电解渗透技术在AZ91D镁合金的表面制备了渗碳层。通过XRD、SEM、EDS

测厚仪以及显微硬度计

分析了渗碳层的物相组成

形貌

截面元素分布

厚度和显微硬度

探讨了渗碳层形成的机理和过程。结果表明

以156V的稳弧电压经过5min处理的渗碳层

测得总厚度约为29μm

主要由Mg2C3、MgC2以及Al4C3相组成;渗碳层最高显微硬度（HV0.025）达到178.76。液相电解渗透技术可以快速地在镁合金表面制备出厚度大、硬度高的含碳渗层。

Abstract

Carburising coating was synthesized on the surface of AZ91 Dby electrolytic saturation in the aqueous solution containing glycerine.The phase constituent

morphology

element distribution

thickness and microhandness of the coating are characterized by XRD

SEM

EDS

thickness tester and microhardness tester.And the process and mechanism of the film formation were discussed.The results show that the total thickness reaches approximately 29μm after 5min at 156 V

which mainly is composed of Mg2C3

MgC2 and Al4C3.The micro-hardness of the film reaches 178.76HV0.025.Electrolytic saturation can synthesize rapidly thick carburising coating with high hardness on the surface of magnesium alloys.