Effect of Heat Treatment on Corrosion Performance of Mg-12Gd-3Y-1Sm-0.8Al Alloy
Abstract In this work, static mass analysis method and electrochemical test experiment were used to study the corrosion resistance of Mg-12Gd-3Y-1Sm-0.8Al alloy in different heat treatment states. Optical microscope, scanning electron microscope and x-ray diffractometer were used to analyze microstructure. The result shows: The microstructure of different samples are composed of α-Mg, $ Mg_{5} $Gd, $ Mg_{24} $$ Y_{5} $, $ Mg_{41} $$ Sm_{5} $ and $ Al_{2} $RE phases. Heat treatment can change the morphology and distribution of the precipitates, and the precipitates can affect the corrosion behavior as a cathode, thereby improving the corrosion resistance of the alloy in 3.5% NaCl solution. The relative corrosion rates of the different samples can be ranked as T6>T6-18h>T4>As-cast. After aging treatment, the fine and continuous precipitates act as a barrier to prevent the propagation of corrosion. At this time, the alloy has the strongest corrosion resistance..
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:31 |
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| Enthalten in: |
Journal of materials engineering and performance - 31(2021), 3 vom: 22. Okt., Seite 2564-2574 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Chen, Ziyi [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Themen: |
Corrosion resistance |
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| Anmerkungen: |
© ASM International 2021 |
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| doi: |
10.1007/s11665-021-06347-2 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
OLC2078400467 |
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| 245 | 1 | 0 | |a Effect of Heat Treatment on Corrosion Performance of Mg-12Gd-3Y-1Sm-0.8Al Alloy |
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| 520 | |a Abstract In this work, static mass analysis method and electrochemical test experiment were used to study the corrosion resistance of Mg-12Gd-3Y-1Sm-0.8Al alloy in different heat treatment states. Optical microscope, scanning electron microscope and x-ray diffractometer were used to analyze microstructure. The result shows: The microstructure of different samples are composed of α-Mg, $ Mg_{5} $Gd, $ Mg_{24} $$ Y_{5} $, $ Mg_{41} $$ Sm_{5} $ and $ Al_{2} $RE phases. Heat treatment can change the morphology and distribution of the precipitates, and the precipitates can affect the corrosion behavior as a cathode, thereby improving the corrosion resistance of the alloy in 3.5% NaCl solution. The relative corrosion rates of the different samples can be ranked as T6>T6-18h>T4>As-cast. After aging treatment, the fine and continuous precipitates act as a barrier to prevent the propagation of corrosion. At this time, the alloy has the strongest corrosion resistance. | ||
| 650 | 4 | |a corrosion resistance | |
| 650 | 4 | |a heat treatment | |
| 650 | 4 | |a Mg–Gd–Y–Sm alloy | |
| 650 | 4 | |a microstructure | |
| 700 | 1 | |a Li, Quanan |0 (orcid)0000-0001-5211-9917 |4 aut | |
| 700 | 1 | |a Chen, Xiaoya |4 aut | |
| 700 | 1 | |a Zhu, Hongxi |4 aut | |
| 700 | 1 | |a Zhang, Qian |4 aut | |
| 700 | 1 | |a Bao, Jian |4 aut | |
| 700 | 1 | |a Li, Xiangyu |4 aut | |
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