Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub
A hollow billet Expanding-Reducing Extrusion (ERE) wheel hub forming process was carried out with AZ80 magnesium alloy. The effects of ageing on Low-cycle fatigue (LCF) properties were investigated, and the microstructure was characterized with scanning electronic microscopy (SEM). The LCF testing r...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/abb0ae |
| _version_ | 1797746201886457856 |
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| author | Jun Wang Fulai Yang Jin Ma Tingyan zhang Hui Cao Xin Che Liye Geng Zhimin Zhang Qiang Wang Yongbiao Yang |
| author_facet | Jun Wang Fulai Yang Jin Ma Tingyan zhang Hui Cao Xin Che Liye Geng Zhimin Zhang Qiang Wang Yongbiao Yang |
| author_sort | Jun Wang |
| collection | DOAJ |
| description | A hollow billet Expanding-Reducing Extrusion (ERE) wheel hub forming process was carried out with AZ80 magnesium alloy. The effects of ageing on Low-cycle fatigue (LCF) properties were investigated, and the microstructure was characterized with scanning electronic microscopy (SEM). The LCF testing results exhibited that the stress amplitude increased with increasing ageing time, while the plastic strain decreased with increasing ageing time. Cyclic softening followed by hardening was observed for 0 h and 16 h aged samples; however, there was no obvious cyclic softening or hardening for 36 h aged sample. The tension-compression asymmetry were not obvious due to the low strain, precipitation and the non typical basal texture. Fracture observations indicated that the fatigue cracks were initiated on the surface, and the crack propagation area decreased with increasing ageing time. Thus, it can be concluded that ageing has strong effects on the fatigue life for the studied magnesium alloy. |
| first_indexed | 2024-03-12T15:34:37Z |
| format | Article |
| id | doaj.art-a724c58d026d4436b8fb8f800157e9f2 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:34:37Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
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| series | Materials Research Express |
| spelling | doaj.art-a724c58d026d4436b8fb8f800157e9f22023-08-09T16:18:50ZengIOP PublishingMaterials Research Express2053-15912020-01-017909650810.1088/2053-1591/abb0aeEffects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hubJun Wang0Fulai Yang1Jin Ma2Tingyan zhang3Hui Cao4Xin Che5Liye Geng6Zhimin Zhang7Qiang Wang8Yongbiao Yang9https://orcid.org/0000-0002-5699-859XCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of China; Technology Center, ShanXi Taigang Stainless Steel Co., Ltd, Taiyuan 030003, People’s Republic of China; State Key Laboratory of Advanced Stainless Steel Materials, Taiyuan Iron and steel (Group) Co., Ltd., Taiyuan 030003, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaShanxi Diesel Engine Industries Co., Ltd, Datong 037036, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaCollege of Materials Science and Engineering, North University of China , Taiyuan 030051, People’s Republic of ChinaA hollow billet Expanding-Reducing Extrusion (ERE) wheel hub forming process was carried out with AZ80 magnesium alloy. The effects of ageing on Low-cycle fatigue (LCF) properties were investigated, and the microstructure was characterized with scanning electronic microscopy (SEM). The LCF testing results exhibited that the stress amplitude increased with increasing ageing time, while the plastic strain decreased with increasing ageing time. Cyclic softening followed by hardening was observed for 0 h and 16 h aged samples; however, there was no obvious cyclic softening or hardening for 36 h aged sample. The tension-compression asymmetry were not obvious due to the low strain, precipitation and the non typical basal texture. Fracture observations indicated that the fatigue cracks were initiated on the surface, and the crack propagation area decreased with increasing ageing time. Thus, it can be concluded that ageing has strong effects on the fatigue life for the studied magnesium alloy.https://doi.org/10.1088/2053-1591/abb0aeAZ80 magnesium alloywheel hubexpanding-reducing extrusion (ERE)low-cycle fatigue (LCF)basal textureageing |
| spellingShingle | Jun Wang Fulai Yang Jin Ma Tingyan zhang Hui Cao Xin Che Liye Geng Zhimin Zhang Qiang Wang Yongbiao Yang Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub Materials Research Express AZ80 magnesium alloy wheel hub expanding-reducing extrusion (ERE) low-cycle fatigue (LCF) basal texture ageing |
| title | Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub |
| title_full | Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub |
| title_fullStr | Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub |
| title_full_unstemmed | Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub |
| title_short | Effects of ageing on low-cycle fatigue (LCF) properties of AZ80 magnesium alloy wheel hub |
| title_sort | effects of ageing on low cycle fatigue lcf properties of az80 magnesium alloy wheel hub |
| topic | AZ80 magnesium alloy wheel hub expanding-reducing extrusion (ERE) low-cycle fatigue (LCF) basal texture ageing |
| url | https://doi.org/10.1088/2053-1591/abb0ae |
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