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在现代科技中越来越广泛采用具有物理力学特性的高复合体材料。碳化硼及其金属陶瓷在某种程度上具有这些特性。高冲击韧性与其在具有高硬度制品层上形成相结合的方法是改善制品特性的可行方案。激光表面加工就是一种能使一系列现有材料具备这些特性的方法。现在研究用激光脉冲辐射的方法在 B_4C-AI 系列金属陶瓷的表面形成高硬度层的可能性。用脉冲热模压的方法能获得密度近似于理论值的样品,单位体积内铝含量在30%到50%的范围内变化,粒子的平均尺寸约为
In modern science and technology more and more widely used physical and mechanical properties of high-composite materials. Boron carbide and its cermet have these characteristics to some extent. The combination of high impact toughness and its formation on layers with high hardness products is a viable option to improve the properties of the product. Laser surface processing is a way to make these properties available to a range of existing materials. We now study the use of laser pulsed radiation method in the B_4C-AI series of cermet surface the possibility of forming a high hardness layer. A sample with a density close to the theoretical value can be obtained by means of pulsed hot embossing, the aluminum content per unit volume varying from 30% to 50%, the average size of the particles being about