长时热暴露对一种抗热腐蚀单晶高温合金/Pt-Al涂层体系微观组织演化的影响

张英健, 张思倩, 王栋, 张浩宇, 周舸, 陈立佳

Effect of Long-term Thermal Exposure on Microstructure Evolution of a Platinum Modified Aluminide Coated Single Crystal Superalloy DD413

ZHANG Yingjian, ZHANG Siqian, WANG Dong, ZHANG Haoyu, ZHOU Ge, CHEN Lijia

图4 Pt-Al涂层/合金截面蚀刻后的BSE图像和EDS能谱

Fig.4 BSE images and EDS spectrum of Pt-Al coating/alloy section after etched: (a) sectional image of Pt-Al coating; (b, c) enlarged image of coating/substrate interface image of γ/γ'; (d, e) are the corresponding MC and σ-TCP EDS spectra in (a)