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该工艺方法用来生产含有非连续Al_2O_3纤维的Al-Mg合金复合材料.该加工方法的第一步是:利用熔融金属产生的对流使相邻纤维和熔体金属产生紧密的接触,这就必定会导致这两者间产生化学反应.同时还证实在纤维表面上存在MgAl_2O_4尖晶石.该复合材料含任意分布的纤维,还可使纤维的体积百分比增大,而且使其排列成两种尺寸(二维任意排列).复合材料试样在张力下进行的断裂试验表明:其接触面坚固到足以承受从基体合金到纤维间的载荷.例如:添加23%(体积)Al_2O_3纤维后,合金的弹性模量和抗拉强度极限约分别提高50%和40%.
This process method is used to produce Al-Mg alloy composites containing discontinuous Al 2 O 3 fibers.The first step of this processing method is to utilize the convection created by the molten metal to bring the adjacent fibers into contact with the melt metal in close contact, Will lead to chemical reaction between the two.At the same time, it is confirmed that there is MgAl 2 O 4 spinel on the surface of the fiber.The composite material contains random distribution of fibers, but also can make the fiber volume percentage increase, and make it arrange into two sizes (Two-dimensional arbitrary arrangement.) Fracture tests of composite specimens under tension show that: the contact surface is strong enough to withstand the load from the matrix alloy to the fiber .For example: 23% (volume) of Al 2 O 3 fibers, the alloy Elastic modulus and tensile strength limit increased by about 50% and 40% respectively.