Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure
In this article, the microstructural characteristics and the wear resistance performance of two kinds of high silicon aluminium alloys to produce gradient structure by rheological squeeze casting has been investigated. The mechanism effect of Fe-rich phase on microstructure homogeneity and wear char...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2018-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/aad9cb |
| _version_ | 1827869619236372480 |
|---|---|
| author | Qiuping Wang Lu Li Rongfeng Zhou Fan Xiao Baoyu Geng |
| author_facet | Qiuping Wang Lu Li Rongfeng Zhou Fan Xiao Baoyu Geng |
| author_sort | Qiuping Wang |
| collection | DOAJ |
| description | In this article, the microstructural characteristics and the wear resistance performance of two kinds of high silicon aluminium alloys to produce gradient structure by rheological squeeze casting has been investigated. The mechanism effect of Fe-rich phase on microstructure homogeneity and wear characteristics was also studied. Experimental results present that liquid flow could be impeded because of being acicular Fe-rich phase, resulting in liquid segregation phenomenon and discontinuity gradient distribution of hard phase. Through adding 1.4 wt% Mn element into Al-22Si-2Fe alloys, the morphology of Fe-rich phase was improved, which acicular structure transformed to blocky structure. Because of higher hardness than Al matrix, blocky Fe-rich phase displayed softer hardness than Si particles, thereby buffering Hertz force and shear force, and bearing some load during wear process, which improved wear resistance of alloys. |
| first_indexed | 2024-03-12T15:47:39Z |
| format | Article |
| id | doaj.art-192049b4ab1a4869ae6bc541a269e15a |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:47:39Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-192049b4ab1a4869ae6bc541a269e15a2023-08-09T15:21:56ZengIOP PublishingMaterials Research Express2053-15912018-01-0151010650510.1088/2053-1591/aad9cbMicrostructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structureQiuping Wang0https://orcid.org/0000-0003-0750-970XLu Li1Rongfeng Zhou2Fan Xiao3Baoyu Geng4Faculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 650093, People’s Republic of China; Research Centre for Analysis and Measurement, Kunming University of Science and Technology , Kunming 650093, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 650093, People’s Republic of China; Research Centre for Analysis and Measurement, Kunming University of Science and Technology , Kunming 650093, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 650093, People’s Republic of China; Research Centre for Analysis and Measurement, Kunming University of Science and Technology , Kunming 650093, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 650093, People’s Republic of China; Research Centre for Analysis and Measurement, Kunming University of Science and Technology , Kunming 650093, People’s Republic of ChinaFaculty of Materials Science and Engineering, Kunming University of Science and Technology , Kunming 650093, People’s Republic of China; Research Centre for Analysis and Measurement, Kunming University of Science and Technology , Kunming 650093, People’s Republic of ChinaIn this article, the microstructural characteristics and the wear resistance performance of two kinds of high silicon aluminium alloys to produce gradient structure by rheological squeeze casting has been investigated. The mechanism effect of Fe-rich phase on microstructure homogeneity and wear characteristics was also studied. Experimental results present that liquid flow could be impeded because of being acicular Fe-rich phase, resulting in liquid segregation phenomenon and discontinuity gradient distribution of hard phase. Through adding 1.4 wt% Mn element into Al-22Si-2Fe alloys, the morphology of Fe-rich phase was improved, which acicular structure transformed to blocky structure. Because of higher hardness than Al matrix, blocky Fe-rich phase displayed softer hardness than Si particles, thereby buffering Hertz force and shear force, and bearing some load during wear process, which improved wear resistance of alloys.https://doi.org/10.1088/2053-1591/aad9cbhigh silicon aluminium alloyscooling slopesqueeze castingFe-rich phaseswear behavior |
| spellingShingle | Qiuping Wang Lu Li Rongfeng Zhou Fan Xiao Baoyu Geng Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure Materials Research Express high silicon aluminium alloys cooling slope squeeze casting Fe-rich phases wear behavior |
| title | Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure |
| title_full | Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure |
| title_fullStr | Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure |
| title_full_unstemmed | Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure |
| title_short | Microstructures and wear behavior of the rheo-squeeze casting high silicon aluminium alloys pipe with the gradient structure |
| title_sort | microstructures and wear behavior of the rheo squeeze casting high silicon aluminium alloys pipe with the gradient structure |
| topic | high silicon aluminium alloys cooling slope squeeze casting Fe-rich phases wear behavior |
| url | https://doi.org/10.1088/2053-1591/aad9cb |
| work_keys_str_mv | AT qiupingwang microstructuresandwearbehavioroftherheosqueezecastinghighsiliconaluminiumalloyspipewiththegradientstructure AT luli microstructuresandwearbehavioroftherheosqueezecastinghighsiliconaluminiumalloyspipewiththegradientstructure AT rongfengzhou microstructuresandwearbehavioroftherheosqueezecastinghighsiliconaluminiumalloyspipewiththegradientstructure AT fanxiao microstructuresandwearbehavioroftherheosqueezecastinghighsiliconaluminiumalloyspipewiththegradientstructure AT baoyugeng microstructuresandwearbehavioroftherheosqueezecastinghighsiliconaluminiumalloyspipewiththegradientstructure |