压铸TiC/AlSiCuMg复合材料的制备和性能  

Properties and Preparation of Diecasting TiC/AlSi9Cu 1.4Mg 0.5 Composite

作　　者：杨滨[1] 张济山[1] 陈国香[2] 

机构地区：[1]北京科技大学 [2]南昌大学

出　　处：《特种铸造及有色合金》2001年第4期27-28,共2页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目 (597740 32 );江西省自然科学基金资助项目 (9750 1 8)

摘　　要：利用熔铸 -原位反应和压铸成形技术制备了TiC/AlSi9Cu1.4Mg0 .5复合材料 ,测试了复合材料的力学性能。结果表明 :TiC/AlSi9Cu1.4Mg0 .5复合材料的室温抗拉强度为 3 5 4MPa ,比基体合金提高 2 6% ;2 60℃时复合材料的抗拉强度为2 72MPa ,比基体合金提高 46%。复合材料的伸长率与AlSi9Cu1.4Mg0 .The die-casting TiC/AlSi9Cu1.4Mg0.5 composite has been prepared successfully by both smelting in-situ reaction and die casting tec hnique. The mechanical properties of the composites were measured. The results showed that t he ultimate tensile strength of the die casting TiC/AlSi9Cu1.4Mg0.5 composites w ith 354 MPa at room temperature and 272 MPa at 260 ℃, are higher by 26% and 46% than those of the matrix alloy(280 MPa and 186 MPa)respec ti vely. The elongation of the die casting composite at room temperature and 260 ℃ are comparable to those of the conventional AlSi9Cu 1.4Mg0.5 alloy.

关 键 词：原位反应 铝基复合材料 力学性能 制备 压力铸造 电动车 碳化钛 

分 类 号：TG249.2[金属学及工艺—铸造]