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| Effects of P addition on the microstructure and mechanical properties of Mg–5%Sn–1.25%Si alloy | |
| 作者姓名： | Hao-ran Geng Qing-lei Wang Peng Liu Ming Wu |
| 作者单位： | [1]School of Material Science and Engineering, University of Jinan, Jinan 250022, China [2]Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan 250022, China [3]Jinan Jinzhong Electronic Scale Company Ltd., Jinan, 250004, China |
| 基金项目： | financially supported by the National Natural Science Foundation of China （Nos. 50871047 and 51271087）; the Natural Science Foundation of Shandong Province, China （No. ZR2010EM071） |
| 摘 要： | The effects of Al-P addition on the microstructure and mechanical properties of as-cast Mg–5%Sn–1.25%Si magnesium alloy were investigated. The results show that the phases of the as-cast alloy are composed of α-Mg, Mg2 Sn, Mg2 Si, little P, and AlP. The Chinese character shape Mg2 Si phase changes into a granular morphology by P addition because AlP can act as a heterogeneous nucleation core for the Mg2 Si phase. When 0.225wt% of Al–3.5%P alloy is added, the mechanical properties of the Mg–5%Sn–1.25%Si alloy are greatly improved, and the tensile strength increases from 156 to 191 MPa, an increase of 22.4% compared to the alloy without P addition. When the amount of Al–3.5%P reaches 0.300wt%, a segregation phenomenon occurs in the granular Mg2 Si phase, and the tensile strength and hardness decrease though the elongation increases. |
| 关 键 词： | 镁合金 力学性能 显微组织 Si C5 添加剂 锡 铸态合金 |
Effects of P addition on the microstructure and mechanical properties of Mg-5%Sn-1.25%Si alloy |
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| Hao-ran Geng,Qing-lei Wang,Peng Liu,Ming Wu.Effects of P addition on the microstructure and mechanical properties of Mg-5%Sn-1.25%Si alloy[J].International Journal of Minerals,Metallurgy and Materials,2014,21(3):289-294. | |
| Authors: | Hao-ran Geng Qing-lei Wang Peng Liu Ming Wu |
| Institution: | 1. School of Material Science and Engineering, University of Jinan, Jinan, 250022, China 2. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials, University of Jinan, Jinan, 250022, China 3. Jinan Jinzhong Electronic Scale Company Ltd., Jinan, 250004, China |
| Abstract: | The effects of Al-P addition on the microstructure and mechanical properties of as-cast Mg-5%Sn-1.25%Si magnesium alloy were investigated. The results show that the phases of the as-cast alloy are composed of α-Mg, Mg2Sn, Mg2Si, little P, and AlP. The Chinese character shape Mg2Si phase changes into a granular morphology by P addition because AlP can act as a heterogeneous nucleation core for the Mg2Si phase. When 0.225wt% of Al-3.5%P alloy is added, the mechanical properties of the Mg-5%Sn-1.25%Si alloy are greatly improved, and the tensile strength increases from 156 to 191 MPa, an increase of 22.4% compared to the alloy without P addition. When the amount of Al-3.5%P reaches 0.300wt%, a segregation phenomenon occurs in the granular Mg2Si phase, and the tensile strength and hardness decrease though the elongation increases. |
| Keywords: | magnesium alloys microstructure mechanical properties phosphorus |
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