摘要
用电冶熔铸的方法制备 4%SiC颗粒增强轴承钢复合材料 ,对其组织性能进行探索。实验结果发现 :SiC颗粒在电冶熔铸工艺中发生分解 ,原始颗粒没有保留下来 ,溶入钢基体的Si和C原子在快速冷却下会发生原位反应重新生成细小的原位SiC ;磨损试验发现 ,原位SiC的存在使基体硬度上升 ,复合材料的整体耐磨性比基体材料相比有明显改善 ,磨损机理以粘着磨损和磨粒磨损为主。
The initial research on bearing steel composites reinforced with 4%SiC particles by electro-slag melting and casting method have made. It is showed that all the SiC particles are decomposed and no original SiC particles are kept in the matrix. In addition, Si and C in the matrix will be changed into in-situ SiC because of quick cooling. Furthermore, being in-situ SiC, hardness of matrix and whole wear-resistant ability of composites are improved remarkably, and the main mechanism of wear is adhesive and abrasive wear.
出处
《铸造技术》
CAS
北大核心
2004年第8期612-614,共3页
Foundry Technology
关键词
电冶熔铸
SIC颗粒
显微组织
磨损
Electro-slag melting and Casting
SiC particles
Microstructure
Wear
