Protective coating material resistant to high-temperature silicide corrosion and preparation method of coating

The invention relates to a protective coating material resistant to high-temperature silicide corrosion and a preparation method of a coating. The coating is of a main phase structure composed of Nb Ni Si, NbNi and NbNi . Experiments prove that the corrosion rate of a matrix is greatly reduced in a simulated molten glass environment, and the corrosion resistance is excellent. The method for preparing the coating comprises the following steps of carrying out mechanical ball milling on simple substance powder of Nb, Ni and Si and then adopting a cold spraying technology and subsequent heat treatment to obtain the Nb-Ni-Si intermetallic compound coating. The protective coating material resistant to high-temperature silicide corrosion and a preparation method have the characteristics of low cost, simplicity, easiness in control, high speed, uniform thickness, high coating quality and the like. 本发明涉及一种耐高温硅化物腐蚀的防护涂层材料及涂层制备方法，涂层以NbNiSi，NbNi以及NbNi为主相结构。实验证实，在模拟熔融玻璃环境中大大降低了基体的腐蚀速率，具有优异的耐腐蚀性能。另外，本发明还提供了一种制备该涂