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研究了ＤＺ１２５合金ＮｉＣｒＡｌＹＳｉ防护涂层抗氧化抗腐蚀性能。试验表明，在１１００℃循环氧化加速试验条件下及１０５０℃循环氧化长寿试验中，涂层对合金起到了很好的防护作用，在９００℃燃气热腐蚀条件下，ＮｉＣｒＡｌＹＳｉ涂层明显提高了ＤＺ１２５合金的抗热腐蚀能力。
The oxidation and corrosion resistance of NiCrAlYSi protective coating on DZ125 alloy was studied. The results show that the coating has a good protective effect on the alloy at 1100 ℃ cyclic oxidation accelerated test and 1050 ℃ cyclic oxidation and longevity test. The NiCrAlYSi coating significantly improves the corrosion resistance of the alloy DZ125 alloy The hot corrosion resistance.