An unalloyed thin-wall ductile cast iron with the chemical composition of C = 3%, Si = 4.15%, Mn = 0.36%, Mg = 0.04%, and carbon equivalent of 4.39% was cast by both conventional and ablation casting in sections of nominal thickness 1, 2, 4, 8 mm. The effect of various commercial inoculants (based on Zr, Sr, and Ba) on microstructure and mechanical properties of the samples was investigated. In the ablation casting, the mold is eroded away by water, and the water becomes responsible for the heat transfer from the casting. In our work, ablative cooling could not be applied quickly enough to have any influence on the microstructure of the 1 mm thick cast section. In the 2-mm-thick specimen, ablation increased the nodule count from 497 to 1484 and graphite nodularity from 76 to 93%. In the 8 mm section, the tensile yield strength increased from 539 to 624 MPa and elongation was increased from 4.9 to 10.2%.

采用常规铸造和烧蚀铸造两种方法分别铸造化学成分为C = 3％，Si = 4.15％，Mn = 0.36％，Mg = 0.04％和碳当量为4.39％的非合金薄壁球墨铸铁。公称厚度1、2、4、8毫米。研究了各种市售接种剂（基于Zr，Sr和Ba）对样品的微观结构和力学性能的影响。在消融铸件中，铸模被水腐蚀掉，水成为铸件传热的原因。在我们的工作中，烧蚀冷却不能足够快地应用到足以对1毫米厚铸件的显微组织产生任何影响。在2毫米厚的标本中，消融使根瘤数从497增加到1484，而石墨根瘤度从76％增加到93％。在8毫米部分，