过渡族金属常常与碳、氮或硼形成具有高强度和高硬度的合金。我们进行的对含过渡族金属硼化物的合金的研究,意在发展一种新型的复合材料,这种材料由弥散分布在比较韧性的基体中的坚硬的细纤维或细颗粒所增强。 在这一初步研究中,我们在氩气保护下浇铸了含硼量(重量)从0.06到3.8％之间变化的铁-硼合金。铸锭形状呈圆柱形,直径约23毫米,每个铸锭的体积接近60厘米~3,而厚壁铜铸模的体积是760厘米~3,因此铸模质量与铸锭质量的比值是足够高的。 Transition metals often form alloys with carbon, nitrogen or boron with high strength and hardness. Our study of transition metal boride alloys is intended to develop a new type of composite material that is reinforced by hard, fine fibers or fine particles dispersed in a relatively tough matrix. In this preliminary study, we cast iron-boron alloys with a boron content varying from 0.06 to 3.8% under argon. The shape of the ingot is cylindrical with a diameter of about 23 mm and the volume of each ingot is approximately 60 cm -3 whereas the volume of the thick copper mold is 760 cm -3 so that the ratio of mold quality to ingot quality is high enough .