Tribocorrosion Behaviors of Al-Mg<sub>2</sub>Si Composite Coatings with Different Composition Ratio

Fan Chun; Long Wei; Zhou Xiaoping

doi:10.15980/j.tzzz.2018.02.027

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Tribocorrosion Behaviors of Al-Mg₂Si Composite Coatings with Different Composition Ratio
Vol. 38, Issue 2, Pages: 213-218(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.02.027

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[1]范春,龙威,周小平.不同成分配比的Al-Mg_2Si复合涂层的腐蚀磨损性能[J].特种铸造及有色合金,2018,38(02):213-218.

Fan Chun, Long Wei, Zhou Xiaoping. Tribocorrosion Behaviors of Al-Mg₂Si Composite Coatings with Different Composition Ratio. [J]. Special Casting & Nonferrous Alloys 38(2):213-218(2018)
[1]范春,龙威,周小平.不同成分配比的Al-Mg_2Si复合涂层的腐蚀磨损性能[J].特种铸造及有色合金,2018,38(02):213-218. DOI： 10.15980/j.tzzz.2018.02.027.

Fan Chun, Long Wei, Zhou Xiaoping. Tribocorrosion Behaviors of Al-Mg₂Si Composite Coatings with Different Composition Ratio. [J]. Special Casting & Nonferrous Alloys 38(2):213-218(2018) DOI： 10.15980/j.tzzz.2018.02.027.

摘要

研究了Al含量对Al-Mg

Si复合涂层耐磨蚀性能的影响。采用电化学测试仪、腐蚀-磨损试验机观察Al含量为80%、60%、40%和20%的Al-Mg

Si涂层的开路电位和摩擦因数

并采用扫描电镜（SEM）和超景深三维显微镜表征涂层磨痕特征。结果表明

Al-Mg

Si涂层的电位较AZ31B镁合金基体正移

且Al含量越低电位正移越明显。Al含量为20%的Al-Mg

Si涂层电位正移最多

正移了0.528 8V

腐蚀电流密度最小

为3.298×10

-3

mA/cm

。Al加入量越少

涂层的磨损率和摩擦因数越小

当Al含量为20%时两者均达到最小值

分别为4.27×10

-3

/（N獉mm）和0.78。

Abstract

The effects of Al content including 80%

60%

40%

20%content on the tribocorrosion properties of Al-Mg

Si composite coating were investigated.The open circuit potential

frictional coefficient

corrosion resistance and tribocorrosion behaviors of the coatings prepared were characterized by scanning electron microscopy

electrochemical testing

reciprocating-sliding tribometer and ultra-depth three-dimensional microscope.The results reveal that the potential of Al-Mg

Si coating is the higher than that of AZ31B magnesium alloy

and with decreasing in the content of Al

the potential shift is increased.The positive displacement of Al-80Mg

Si coating is the most

which is shifted 0.528 8V

and the corrosion current density is 3.298×10

-3

mA/cm

.Furthermore

with decreasing in Al addition

the wear rate and friction coefficient of the coating are decreased.The wear rate and friction coefficient reach4.27×10

-3

/（N獉mm）and 0.78

respectively

with 20%Al content.

关键词

AZ31B镁合金火焰喷涂Al-Mg2Si复合涂层腐蚀磨损

Keywords

AZ31B Mg AlloyFlame SprayingAl-Mg2Si CoatingTribocorrosion

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Effects of Al Contents on Microstructure and Corrosion Resistance of Al-Mg₂Si Composite Coatings

Effects of Ultrasonic Surface Rolling Process on Friction and Wear Properties of AZ31B Mg Alloy

Tribocorrosion Behaviors of Al-Mg2Si Composite Coatings with Different Composition Ratio

DOI： 10.15980/j.tzzz.2018.02.027

摘要

Abstract

关键词

Keywords

references

Tribocorrosion Behaviors of Al-Mg₂Si Composite Coatings with Different Composition Ratio