J. Zhang
,
J.B. Li
,
Q.Heng and X.H.Zhang Shenyang University
,
Shenyang 110044
,
China L.Q.Qi LiMing Aeroengine Manufacfruing Corperation
,
Shenyang 110043
,
China
金属学报(英文版)
NCoCrAlSiYHf and CoNiCrAlTaY coatings which belong to protective Al 2O 3 scale forming type were deposited by multi arc ion plating technique . The effect of deposition process parameters on qualities of the coatings was discussed. The high temperature oxidation performances isothermal oxidation with 950℃ / 500h and 1100℃ / 100h were studied. And also, the hot corrosion performances at 700℃ and 800℃, with molten mixed salt composed of 75%wt Na 2SO 4 and 25%wt NaCl were investigated. Then the high temperature protection decaying mechanisms were proposed.
关键词:
multi arc ion plating
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