Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion
Due to the shortage of primary Al resources and significant consumption of Al resources, recycled Al has become a focus of attention. In the process of recycling Al, the Fe element is the most hazardous impurity element, and the coarse Fe-containing phases lead to a reduction in the mechanical prope...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/14/11/1310 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850068270139310080 |
|---|---|
| author | Yunhe Ning Li Yang Minqiang Gao Renguo Guan |
| author_facet | Yunhe Ning Li Yang Minqiang Gao Renguo Guan |
| author_sort | Yunhe Ning |
| collection | DOAJ |
| description | Due to the shortage of primary Al resources and significant consumption of Al resources, recycled Al has become a focus of attention. In the process of recycling Al, the Fe element is the most hazardous impurity element, and the coarse Fe-containing phases lead to a reduction in the mechanical properties of recycled Al. In this work, an Al alloy with 1.5 wt% Fe and 0.4 wt% Cr was viewed as a recycled Al, approximately. The continuous rheo-extrusion technique was used to refine the Fe-containing phases in the Al-1.5Fe-0.4Cr alloy, improving the mechanical properties of the alloy. The effect of the extrusion ratio on the microstructure and properties of the continuous rheo-extrusion was investigated. The results showed that, when the extrusion ratio was changed from 4 to 5, the percentage of low-angle grain boundaries in the alloy increased from 45.5% to 53.1%, the average orientation angle reduced from 23.9° to 23.3°, and the grain size decreased from 4.3 ± 0.2 μm to 2.6 ± 0.1 μm. As a result, the ultimate tensile strength, yield strength and elongation of the alloy, with an extrusion ratio of 5, were 161.5 ± 2.8 MPa, 112.3 MPa ± 2.6, and 36.9% ± 1.6%, respectively. Grain refinement and Fe-containing phase refinement were responsible for the improvement in the mechanical properties of the alloy. |
| format | Article |
| id | doaj-art-fd6e108bb91c493d82fa74a0cedd3072 |
| institution | DOAJ |
| issn | 2075-4701 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-fd6e108bb91c493d82fa74a0cedd30722025-08-20T02:48:06ZengMDPI AGMetals2075-47012024-11-011411131010.3390/met14111310Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-ExtrusionYunhe Ning0Li Yang1Minqiang Gao2Renguo Guan3School of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Materials Science and Engineering, Dalian Jiaotong University, Dalian 116028, ChinaDue to the shortage of primary Al resources and significant consumption of Al resources, recycled Al has become a focus of attention. In the process of recycling Al, the Fe element is the most hazardous impurity element, and the coarse Fe-containing phases lead to a reduction in the mechanical properties of recycled Al. In this work, an Al alloy with 1.5 wt% Fe and 0.4 wt% Cr was viewed as a recycled Al, approximately. The continuous rheo-extrusion technique was used to refine the Fe-containing phases in the Al-1.5Fe-0.4Cr alloy, improving the mechanical properties of the alloy. The effect of the extrusion ratio on the microstructure and properties of the continuous rheo-extrusion was investigated. The results showed that, when the extrusion ratio was changed from 4 to 5, the percentage of low-angle grain boundaries in the alloy increased from 45.5% to 53.1%, the average orientation angle reduced from 23.9° to 23.3°, and the grain size decreased from 4.3 ± 0.2 μm to 2.6 ± 0.1 μm. As a result, the ultimate tensile strength, yield strength and elongation of the alloy, with an extrusion ratio of 5, were 161.5 ± 2.8 MPa, 112.3 MPa ± 2.6, and 36.9% ± 1.6%, respectively. Grain refinement and Fe-containing phase refinement were responsible for the improvement in the mechanical properties of the alloy.https://www.mdpi.com/2075-4701/14/11/1310continuous rheo-extrusionrecycled alsecondary phase refinementmechanical properties |
| spellingShingle | Yunhe Ning Li Yang Minqiang Gao Renguo Guan Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion Metals continuous rheo-extrusion recycled al secondary phase refinement mechanical properties |
| title | Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion |
| title_full | Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion |
| title_fullStr | Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion |
| title_full_unstemmed | Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion |
| title_short | Effect of Extrusion Ratio on Microstructure and Properties of Al-1.5Fe-0.4Cr Alloy Obtained by Continuous Rheo-Extrusion |
| title_sort | effect of extrusion ratio on microstructure and properties of al 1 5fe 0 4cr alloy obtained by continuous rheo extrusion |
| topic | continuous rheo-extrusion recycled al secondary phase refinement mechanical properties |
| url | https://www.mdpi.com/2075-4701/14/11/1310 |
| work_keys_str_mv | AT yunhening effectofextrusionratioonmicrostructureandpropertiesofal15fe04cralloyobtainedbycontinuousrheoextrusion AT liyang effectofextrusionratioonmicrostructureandpropertiesofal15fe04cralloyobtainedbycontinuousrheoextrusion AT minqianggao effectofextrusionratioonmicrostructureandpropertiesofal15fe04cralloyobtainedbycontinuousrheoextrusion AT renguoguan effectofextrusionratioonmicrostructureandpropertiesofal15fe04cralloyobtainedbycontinuousrheoextrusion |