Ti₃SiC₂ Reinforced ZA27 Alloy Composites with Enhanced Mechanical Properties

Abstract

This work reports the fabrication and mechanical properties of Ti3SiC2 reinforced Zn‐27 wt. % Al alloy (denoted as ZA27). A total of 10–40 vol. % Ti3SiC2 reinforced ZA27 alloy composites were synthesized by hot pressing mechanically alloyed mixtures of Ti3SiC2 and ZA27 powders. Among the fabricated composites, 20 vol. % Ti3SiC2/ZA27 composite possesses the highest room temperature tensile strength, bending strength and Vickers hardness of 339 MPa, 593 MPa, and 1.13 GPa, respectively. The improved mechanical properties of the 20 vol. % Ti3SiC2/ZA27 composite are mainly attributed to the effects of fine‐grain strengthening and dispersion strengthening.

Effect of thermal stability of Mn+1AXn phases on microstructure and mechanical properties of Mn+1AXn/ZA27 composites

“…No extra phases were found, which indicated that no reaction occurred between Ti 3 SiC 2 and ZA27 matrix. The similar conclusion can also be found in our prior work 17 . Differently, some new phases appeared in Ti 3 AlC 2 /ZA27 and Ti 2 SnC/ZA27 composites.…”

“…The similar conclusion can also be found in our prior work. 17 Differently, some new phases appeared in Ti 3 AlC 2 /ZA27 and Ti 2 SnC/ZA27 composites. As plotted in Figure 1B, the major phases are Al, Zn, and Ti 3 AlC 2 , while some small peaks signed as Al 0.64 Ti 0.36 and TiC are also detected.…”

Enhanced Mechanical Properties by Directional Solidification and Cold Drawing in Cu Added Zn-Al Alloys

“…파괴가 용이하게 일어나기 때문에 용도가 제한될 수 밖에 없 다 [1][2][3][4][5]. 따라서 아연 합금의 결정립 미세화 [6][7][8][9][10], 석출 [11] 및 분산강화 [12] 그리고 강소성 가공 [13,14]…”