反向凝固1Cr18Ni9/15F复合铸带微观组织特征和界面剪切强度

Investigation of Microstructure and interface Shear Strength of Austenitic Stainless Steel Composite Strip Produced with inversion Casting Method

  • 摘要: 采用反向凝固法在实验室条件下研究奥氏体不锈钢复合带制取的工艺过程,通过对复合铸带试样的金相和扫描电镜研究,发现了复合铸带由具有不同微观组织特征的3个区域组成,即碳素钢母带区、不锈钢新相层和界面过渡区.复合铸带界面剪切强度试验的结果表明,反向凝固奥氏体不锈钢复合铸带的界面结合性能完全达到国标的要求.

     

    Abstract: Austenitic stainless steel composite strips 302/C1 015 were made by using inversion casting method in laboratorial experiments. It was observed in metallographic examination and SEM investigation that the composite strips consisted of three different parts each with different microstructures, i. e. the zone of mother sheet of carbon steel, newly crystallized layers of austenitic stainless steel and transition area between mother sheet and the newly solidified layer. The results of shearing test on the composite strip show that the interfacial shearing intensity can meet the demands of national criterion.

     

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