Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions
Stress corrosion cracking (SCC) of a forged Mg-Al-Zn magnesium alloy with different surface conditions was studied by the four-point bending test and alternate immersion test in NaCl solution. The results showed that the bare Mg-Al-Zn magnesium alloy has low susceptivity to SCC, and no abrupt ruptur...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2018/4262860 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850157409797931008 |
|---|---|
| author | Zhongwei Yin Fengjuan Liu Dongdong Song Shihuan He Jun Lin Feng Yu |
| author_facet | Zhongwei Yin Fengjuan Liu Dongdong Song Shihuan He Jun Lin Feng Yu |
| author_sort | Zhongwei Yin |
| collection | DOAJ |
| description | Stress corrosion cracking (SCC) of a forged Mg-Al-Zn magnesium alloy with different surface conditions was studied by the four-point bending test and alternate immersion test in NaCl solution. The results showed that the bare Mg-Al-Zn magnesium alloy has low susceptivity to SCC, and no abrupt rupture happened after the immersion test for 5 days under an initial stress load of 0.15–0.75σ0.2. With microarc oxidation (MAO) coating, corrosion resistance was enhanced, but more surface cracks were induced, and microcracks could be detected inside corrosive pits when the load was 0.75σ0.2, which is similar to the bare alloy. The composite coating totally avoided both SCC and corrosion. The low susceptivity of the forged AQ80M alloy to SCC should be attributed to the fine grain size and even distribution of secondary phases around the grain boundary. |
| format | Article |
| id | doaj-art-396db02ffd014ae8a31ec817b7cee183 |
| institution | OA Journals |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-396db02ffd014ae8a31ec817b7cee1832025-08-20T02:24:09ZengWileyJournal of Chemistry2090-90632090-90712018-01-01201810.1155/2018/42628604262860Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface ConditionsZhongwei Yin0Fengjuan Liu1Dongdong Song2Shihuan He3Jun Lin4Feng Yu5Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, ChinaAerospace Research Institute of Materials and Processing Technology, Beijing 100076, ChinaAerospace Research Institute of Materials and Processing Technology, Beijing 100076, ChinaAerospace Research Institute of Materials and Processing Technology, Beijing 100076, ChinaAerospace Research Institute of Materials and Processing Technology, Beijing 100076, ChinaAerospace Research Institute of Materials and Processing Technology, Beijing 100076, ChinaStress corrosion cracking (SCC) of a forged Mg-Al-Zn magnesium alloy with different surface conditions was studied by the four-point bending test and alternate immersion test in NaCl solution. The results showed that the bare Mg-Al-Zn magnesium alloy has low susceptivity to SCC, and no abrupt rupture happened after the immersion test for 5 days under an initial stress load of 0.15–0.75σ0.2. With microarc oxidation (MAO) coating, corrosion resistance was enhanced, but more surface cracks were induced, and microcracks could be detected inside corrosive pits when the load was 0.75σ0.2, which is similar to the bare alloy. The composite coating totally avoided both SCC and corrosion. The low susceptivity of the forged AQ80M alloy to SCC should be attributed to the fine grain size and even distribution of secondary phases around the grain boundary.http://dx.doi.org/10.1155/2018/4262860 |
| spellingShingle | Zhongwei Yin Fengjuan Liu Dongdong Song Shihuan He Jun Lin Feng Yu Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions Journal of Chemistry |
| title | Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions |
| title_full | Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions |
| title_fullStr | Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions |
| title_full_unstemmed | Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions |
| title_short | Stress Corrosion Cracking of a Forged Mg-Al-Zn Alloy with Different Surface Conditions |
| title_sort | stress corrosion cracking of a forged mg al zn alloy with different surface conditions |
| url | http://dx.doi.org/10.1155/2018/4262860 |
| work_keys_str_mv | AT zhongweiyin stresscorrosioncrackingofaforgedmgalznalloywithdifferentsurfaceconditions AT fengjuanliu stresscorrosioncrackingofaforgedmgalznalloywithdifferentsurfaceconditions AT dongdongsong stresscorrosioncrackingofaforgedmgalznalloywithdifferentsurfaceconditions AT shihuanhe stresscorrosioncrackingofaforgedmgalznalloywithdifferentsurfaceconditions AT junlin stresscorrosioncrackingofaforgedmgalznalloywithdifferentsurfaceconditions AT fengyu stresscorrosioncrackingofaforgedmgalznalloywithdifferentsurfaceconditions |