钢材是机械行业使用十分广泛的金属材料。研究表明,钢中非金属夹杂物对钢的承载能力、塑性、冲击韧性及耐蚀性等都产生不利影响。尤其显著降低钢的疲劳强度,往往作为裂纹源而成为钢产品产生疲劳破坏的原因。因此,一些受交变载荷作用的钢制零部件产品,需要对钢中非金属夹杂物的 Steel is a very widely used metal material in the machinery industry. Research shows that non-metallic inclusions in steel have adverse effects on the bearing capacity, ductility, impact toughness and corrosion resistance of steel. Especially significantly reduce the fatigue strength of steel, often as a source of cracks and steel products have become the cause of fatigue failure. Therefore, some of the alternating load of steel parts products, the need for non-metallic inclusions in steel