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Effect of Ti−6Al−4V particle reinforcements on mechanical properties of Mg−9Al−1Zn alloy

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journal contribution
posted on 2023-11-10, 11:35 authored by Huan Luo, Jian-Bo Li, Jun-liu YE, Jun Tan, Muhammad RashadMuhammad Rashad, Xian-Hua Chen, Sheng-li HAN, Kai-hong ZHENG, Tian‐Tian Zhao, Fu-sheng PAN

Mg-9Al-1Zn (AZ91) magnesium matrix composites reinforced by Ti-6Al-4V (TC4) particles were successfully prepared via powder metallurgical method. The yield strength (YS), ultimate tensile strength (UTS), and elongation (EL) showed a mountain-like tendency with the increase of the TC4 content. The mechanical properties of AZ91 magnesium matrix composites reached the optimal point with TC4 content of 10 wt.%, realizing YS, UTS, and EL of 335 MPa, 370 MPa, and 6.4%, respectively. The improvement of mechanical properties can be attributed to the effective load transfer from the magnesium matrix to the TC4 particles, dislocations associated with the difference in the coefficient of thermal expansion, good interfacial bonding between the Mg matrix and TC4 particles, and grain refinement strengthening.



Transactions of Nonferrous Metals Society of China, 2022, 32 (10), pp. 3238-3249



Other Funding information

The authors acknowledge the financial support from the Guangdong Major Project of Basic and Applied Basic Research, China (No. 2020B0301030006), the National Natural Science Foundation of China (Nos. 52171133, 52171103), the “111 Project” by the Ministry of Education of China (No. B16007), and Fundamental Research Fund of Central Universities in China (No. 2018CDJDCL0019). The author would like to thank Joint Lab for electron microscopy of Chongqing University.

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