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Effect of Lanthanum-praseodymium-cerium Mischmetal on Mechanical Properties and Microstructure of Mg-A1 Alloys |
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| Authors: | YI Yong FAN Yongge TANG Yongjian |
| Affiliation: | YI Yong1,2,FAN Yongge2,TANG Yongjian1 (1. Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900,China,2.School of Materials Science & Engineering,Southwest University of Science & Technology,Mianyang 621010,China) |
| Abstract: | The effects of lanthanum-praseodymium-cerium mischmetal (LPC) on the microstructure and mechanical properties of Mg-Al alloy were investigated. With the addition of LPC, an additional rod-like Al11La3 phase was deposited in the alloy. LPC greatly improves the tensile strength of cast Mg-Al alloys but negatively affects the elongation of cast alloys above 473 K. Cast alloys are strengthened by both precipitation strengthening and dispersion strengthening at ambient temperature. When the temperature exceeds 4... |
| Keywords: | lanthanum-praseodymium-cerium mischmetal Mg-alloy microstructure mechanical properties |
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