| Autor: |
Zhao, Zuofu, Li, Xin, Yuan, Hui, Zhao, Yuqing, Qi, Jingang |
| Předmět: |
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| Zdroj: |
Journal of Materials Engineering & Performance; Dec2023, Vol. 32 Issue 24, p11448-11456, 9p |
| Abstrakt: |
In this work, the influence of pulse frequency in the electric pulse treatment (EPT) on the wear and corrosion resistance of Al-4.5Mg-3Si alloy has been investigated by using a ring block friction tester, electrochemical workstation, stereo microscope, laser scanning confocal microscope, scanning electron microscope, and x-ray diffractometer. Results have shown that the hardness of samples with EPT significantly improved, and the volume of the Mg2Si phase was lower than those of the original sample. And the wear and corrosion resistance of Al-4.5Mg-3Si alloy was significantly improved by EPT. When the pulse frequency was 7 Hz, the maximum hardness was 77.100 HBS, and the volume fraction of the Mg2Si phase was reduced from 38.28 to 33.81%. The self-corrosion potential was increased from − 1.3241 to − 1.2764 V, self-corrosion current density was reduced from 1.2726 × 10−5 to 1.0048 × 10−5 A/cm2, and the lowest average corrosion rate was 113.10 g/m2 h. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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