Influence of Zn Content and SiC<sub>p</sub> Addition on Microstructure and Properties of Squeeze Casting Magnesium Alloys

Yan Pan; Zhang Qiaoxin; Xiong Xinhong; He Li; Zhou Lang; Tian Wenhua

doi:10.15980/j.tzzz.2017.06.013

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Influence of Zn Content and SiC_p Addition on Microstructure and Properties of Squeeze Casting Magnesium Alloys
Vol. 37, Issue 6, Pages: 630-634(2017)
Published： 2017 ，
DOI： 10.15980/j.tzzz.2017.06.013

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[1]闫攀,章桥新,熊新红,何笠,周浪,田文华.Zn和SiC_p对挤压铸造镁合金组织和性能的影响[J].特种铸造及有色合金,2017,37(06):630-634.

Yan Pan, Zhang Qiaoxin, Xiong Xinhong, et al. Influence of Zn Content and SiC_p Addition on Microstructure and Properties of Squeeze Casting Magnesium Alloys. [J]. Special Casting & Nonferrous Alloys 37(6):630-634(2017)
[1]闫攀,章桥新,熊新红,何笠,周浪,田文华.Zn和SiC_p对挤压铸造镁合金组织和性能的影响[J].特种铸造及有色合金,2017,37(06):630-634. DOI： 10.15980/j.tzzz.2017.06.013.

Yan Pan, Zhang Qiaoxin, Xiong Xinhong, et al. Influence of Zn Content and SiC_p Addition on Microstructure and Properties of Squeeze Casting Magnesium Alloys. [J]. Special Casting & Nonferrous Alloys 37(6):630-634(2017) DOI： 10.15980/j.tzzz.2017.06.013.

摘要

根据微观结构及物相分析、静态失重法、极化曲线试验

研究了Zn及SiC

对镁合金组织和性能的影响。结果表明

相比于Mg-8Zn-0.6Zr

Mg-12Zn-0.6Zr与SiC

/Mg-12Zn-0.6Zr中Mg

相的含量及分布明显发生改变。对应的3种合金在90℃、3%的KCl溶液中的分解速率分别为2.30、5.62、7.24 mg·cm

-2

·h

-1

。分解过程中抗压强度随镁合金质量损失呈线性下降。分解速率提高的主要原因是α-Mg相的阳极溶解、微小粒子的脱离及腐蚀产物对分解过程无阻滞作用。

Abstract

Effects of Zn content and Si C addition on structure and decomposition behavior of magnesium alloys were investigated by static weight loss

polarization curve and the micro-morphology characterization. The results indicate that the content and distribution of Mg

in Mg-12Zn-0. 6Zr and SiC

/Mg-12Zn-0. 6Zr are different from Mg-8Zn-0. 6Zr. By increasing Zn content and Si C addition

decomposition rate of three magnesium alloy is increased from 2. 30 to 5. 62

7. 24 mg·cm

-2

·h

-1

respectively. The compressive strength of the alloy is decreased linearly with the weight loss of the magnesium alloy during the degradation process

which is attributed to the anode dissolution of α-Mg matrix

the detachment of tiny particles and the no negative effect on degradation process of degradation products.

关键词

可分解材料镁合金ZnSiCp组织与性能

Keywords

Degradation MaterialsMagnesium AlloyZnSiCpMicrostructure and Properties

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Influence of Zn Content and SiCp Addition on Microstructure and Properties of Squeeze Casting Magnesium Alloys

DOI： 10.15980/j.tzzz.2017.06.013

摘要

Abstract

关键词

Keywords

references

Influence of Zn Content and SiC_p Addition on Microstructure and Properties of Squeeze Casting Magnesium Alloys