CAJ | 학술논문

以Ti粉、石墨粉和Cr粉为原料采用反应熔覆技术，结合自蔓延高温合成与真空消失模铸造法，在Mn13高锰钢表面制备不同Cr含量的TiC-(Cr, Fe)7C3复合材料涂层。通过扫描电镜(SEM)结合X射线能谱分析(EDS)、X射线衍射(XRD)分析，研究涂层的微观结构与成分。结果表明：Cr溶于Fe形成M7C3型化合物，TiC颗粒的分布随Cr含量增加而更加均匀、尺寸逐渐变小。分析3种不同Cr含量材料的力学性能，结果表明Cr含量(质量分数)为15%时涂层的硬度最高，耐磨性能最好。
이Ti분、석묵분화Cr분위원료채용반응용복기술，결합자만연고온합성여진공소실모주조법，재Mn13고맹강표면제비불동Cr함량적TiC-(Cr, Fe)7C3복합재료도층。통과소묘전경(SEM)결합X사선능보분석(EDS)、X사선연사(XRD)분석，연구도층적미관결구여성분。결과표명：Cr용우Fe형성M7C3형화합물，TiC과립적분포수Cr함량증가이경가균균、척촌축점변소。분석3충불동Cr함량재료적역학성능，결과표명Cr함량(질량분수)위15%시도층적경도최고，내마성능최호。
With the mechanism of self-propagating high-temperature synthesis (SHS), reactive cladding TiC particle in-situ synthesized (Cr, Fe)7C3 reinforced Mn13 high manganese steel substrate composite materials with different contents of Cr were prepared using vacuum evaporative pattern casting (V-EPC) infiltration method. The micro-structure and compositions of coating were characterized by SEM, EDS and XRD. The results suggest that Cr is dissolved in Fe and then M7C3 type compound come out. With the increase of Cr content, the TiC particle distributes more evenly and the size of TiC particle becomes smaller. The hardness of coating reaches the peak when Cr content (mass fraction) reaches 15%.