Ru、Y对铸造高温合金与陶瓷界面反应的影响  

Effect of Ru and Y on the Interface Reaction Between Cast Superalloy and Ceramic Materials

作　　者：史振学[1] 潘宏涛 郝齐赞 刘世忠[1] SHI Zhen-xue;PAN Hong-tao;HAO Qi-zan;LIU Shi-zhong(Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Beijing 100095,China)

机构地区：[1]北京航空材料研究院先进高温结构材料重点实验室,北京100095

出　　处：《铸造》2024年第6期810-817,共8页Foundry

基　　金：动力技术项目(3020402080402)。

摘　　要：在定向凝固炉中,采用相同的硅基陶瓷型芯,刚玉陶瓷型壳,熔炼工艺和定向凝固工艺制备了四种不同Ru、Y含量的单晶高温合金叶片,研究了组织稳定性提升元素Ru、抗氧化性增强元素Y对合金与陶瓷材料界面反应的影响。研究结果表明,合金中不含Ru、Y时,合金与型壳发生的界面反应主要为物理粘砂作用,未见合金元素与型壳发生明显的化学反应,合金与型芯发生轻微的界面反应,除了物理作用,还发生了Al与SiO2的化学反应。合金中添加Ru,对合金与型壳或型芯的界面反应无影响。合金中添加0.01%Y后,合金与陶瓷型壳或型芯的界面反应稍有增加,但由于其添加量较少,故影响较小。The four kinds of single crystal superalloy blades with different Ru and Y content were cast in a directionally solidified furnace using the same silica-based ceramic core,Al2O3 mold shell,melting process and directional solidification process.Effect of enhancing microstructure stability element Ru and improving the oxidation resistance element Y on the interface reaction between cast superalloy and ceramic materials was studied.The results show that the alloy the interfacial reaction of the alloy and mold shell mainly is physical burning-on action and no obvious chemical reaction between alloying elements and mold shell when the alloy contains no Ru and Y element.A slight interfacial reaction occurred between the same alloy and the ceramic core.In addition to the physical interaction,the chemical reaction between Al and SiO2 also occurred.Adding Ru in the alloy has no effect on the interfacial reaction between the alloy and the mold shell or ceramic core.When 0.01%Y is added to the alloy,the interfacial reaction between the alloy and the mold shell or ceramic core is slightly increased,but the effect is small because the small amount of Y added.

关 键 词：陶瓷 高温合金 界面反应 RU Y 

分 类 号：TG132.32[一般工业技术—材料科学与工程]