Pt-Al涂层对一种镍基单晶高温合金抗热腐蚀行为的影响

王迪, 王栋, 谢光, 王莉, 董加胜, 陈立佳

Influence of Pt-Al Coating on Hot Corrosion Resistance Behaviors of a Ni-Based Single-Crystal Superalloy

WANG Di, WANG Dong, XIE Guang, WANG Li, DONG Jiasheng, CHEN Lijia

表1 图6中不同区域的EDS结果 (atomic fraction / %)

Table 1 EDS results of different positions of uncoated and Pt-Al coating samples in Fig.6

Sample Position O Na Al Ti Cr Co Ni Ta W S Pt Uncoated 1 62.67 4.81 1.91 19.44 5.05 1.36 4.41 0.35 - - - (in Fig.6a) 2 54.98 13.28 - 6.57 2.46 1.42 6.30 14.97 - - - 3 54.94 - 9.13 4.00 15.51 8.26 8.17 - - - - 4 51.94 - 3.58 1.79 4.67 7.31 14.97 2.06 13.68 - - Pt-Al coating 1 62.03 6.89 2.25 23.17 2.94 0.24 2.12 - - - 0.36 (in Fig.6b) 2 53.91 - 19.02 1.80 11.29 4.61 8.84 - - - 0.53 3 55.86 - 36.68 0.71 4.00 - 2.21 - - - 0.54 4 36.43 - 30.80 1.22 2.11 - 20.27 1.07 - 5.19 2.91 5 4.17 - 33.51 3.99 6.32 - 1.34 - - 13.22 0.46