Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys
The Sr-containing magnesium alloys have unique characteristics and demonstrate potentials to broaden the application of magnesium alloys. The microstructures and room temperature tensile properties of the as-cast Mg-1Zn-1Ca-xSr (x = 0.1, 0.5, 1.5, 2.5 weight%) alloys were investigated in this study....
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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 |
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| Online Access: | https://doi.org/10.1088/2053-1591/ab6259 |
| _version_ | 1797747099338539008 |
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| author | Dong Geng-Yi Sha Gui-Ying Liu Teng Zhang Chong |
| author_facet | Dong Geng-Yi Sha Gui-Ying Liu Teng Zhang Chong |
| author_sort | Dong Geng-Yi |
| collection | DOAJ |
| description | The Sr-containing magnesium alloys have unique characteristics and demonstrate potentials to broaden the application of magnesium alloys. The microstructures and room temperature tensile properties of the as-cast Mg-1Zn-1Ca-xSr (x = 0.1, 0.5, 1.5, 2.5 weight%) alloys were investigated in this study. The results indicated that the grains of the Sr-containing alloys were gradually refined and the quantity of second phases was obviously increased with increasing the Sr content. In addition, the phase constituents of the alloys were found to be α -Mg, Mg _2 Ca, Mg _6 Ca _2 Zn _3 and Mg _17 Sr _2 . The tensile results at room temperature showed that the tensile strength and elongation increased for low Sr-content alloys, but didn’t change or even decreased a little for high Sr-content alloys. The yield strength changed little with increasing Sr content. The alloy with 0.1% Sr exhibited the best comprehensive properties, with yield strength of 65.69 MPa, tensile strength of 118.23 MPa and elongation of 2.45%. Fracture analysis showed that the fracture mode of the alloys was mainly quasi-cleavage mechanism. |
| first_indexed | 2024-03-12T15:46:20Z |
| format | Article |
| id | doaj.art-bec383dc28ff424ab83969f6e4f7798f |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:46:20Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
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| series | Materials Research Express |
| spelling | doaj.art-bec383dc28ff424ab83969f6e4f7798f2023-08-09T15:26:12ZengIOP PublishingMaterials Research Express2053-15912020-01-017101653010.1088/2053-1591/ab6259Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloysDong Geng-Yi0https://orcid.org/0000-0003-1835-693XSha Gui-Ying1Liu Teng2Zhang Chong3School of Materials Science and Engineering, Shenyang Aerospace University , Shenyang 110136, People’s Republic of ChinaSchool of Materials Science and Engineering, Shenyang Aerospace University , Shenyang 110136, People’s Republic of ChinaSchool of Materials Science and Engineering, Shenyang Aerospace University , Shenyang 110136, People’s Republic of ChinaSchool of Materials Science and Engineering, Shenyang Aerospace University , Shenyang 110136, People’s Republic of ChinaThe Sr-containing magnesium alloys have unique characteristics and demonstrate potentials to broaden the application of magnesium alloys. The microstructures and room temperature tensile properties of the as-cast Mg-1Zn-1Ca-xSr (x = 0.1, 0.5, 1.5, 2.5 weight%) alloys were investigated in this study. The results indicated that the grains of the Sr-containing alloys were gradually refined and the quantity of second phases was obviously increased with increasing the Sr content. In addition, the phase constituents of the alloys were found to be α -Mg, Mg _2 Ca, Mg _6 Ca _2 Zn _3 and Mg _17 Sr _2 . The tensile results at room temperature showed that the tensile strength and elongation increased for low Sr-content alloys, but didn’t change or even decreased a little for high Sr-content alloys. The yield strength changed little with increasing Sr content. The alloy with 0.1% Sr exhibited the best comprehensive properties, with yield strength of 65.69 MPa, tensile strength of 118.23 MPa and elongation of 2.45%. Fracture analysis showed that the fracture mode of the alloys was mainly quasi-cleavage mechanism.https://doi.org/10.1088/2053-1591/ab6259Mg alloySrmicrostructuremechanical properties |
| spellingShingle | Dong Geng-Yi Sha Gui-Ying Liu Teng Zhang Chong Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys Materials Research Express Mg alloy Sr microstructure mechanical properties |
| title | Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys |
| title_full | Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys |
| title_fullStr | Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys |
| title_full_unstemmed | Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys |
| title_short | Effects of Sr addition on microstructures and mechanical properties of Mg-1Zn-1Ca-xSr alloys |
| title_sort | effects of sr addition on microstructures and mechanical properties of mg 1zn 1ca xsr alloys |
| topic | Mg alloy Sr microstructure mechanical properties |
| url | https://doi.org/10.1088/2053-1591/ab6259 |
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