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APPLICATION OF THE COMBINED thermal barrier coating on the details of high-temperature alloys
APPLICATION OF THE COMBINED thermal barrier coating on the details of high-temperature alloys
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机译：组合式隔热层在高温合金零件上的应用
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摘要
FIELD: metallurgy.;SUBSTANCE: method involves chrome aluminising in powder mixture, further thermal vacuum treatment by means of hardening so that chrome-aluminised layer is obtained, which consists of β+y - phases; sputtering of ceramic layer of columnar structure, which contains ZrO2-8Y2O3, on the part by means of electron-beam method; application to it of dense ceramic coating layer containing ZrO2-11Y2O3-(20-25)Al2O3-(10-12)81-(5-8)Hf with thickness of 10-15 mcm by means of electron-beam method, and carrying out of diffusion annealing with formation of the coating consisting of [ZrO2-11 Y2O3-(20-25)Al2O3-(10-12)Si-(5-8)Hf]-(ZrO2-8Y2O3)-β+y' - phase.;EFFECT: improving durability and reliability of parts of engines operating under conditions of variable thermomechanical loads and high-temperature oxidation.;6 dwg, 1 ex
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机译：领域：冶金学;方法：该方法涉及将粉末混合物中的铬渗铝，然后通过硬化进行进一步的热真空处理，从而获得由β+ y-相组成的铬渗铝层。通过电子束法溅射含有ZrO 2 -8Y 2 O 3 的圆柱状陶瓷层。 ZrO 2 -11Y 2 O 3 -（20-25）Al 2 的致密陶瓷涂层的应用通过电子束法形成厚度为10-15mcm的Sub> O 3 -（10-12）81-（5-8）Hf，并进行扩散退火以形成由[ZrO 2 -11 Y 2 O 3 -（（20-25）Al 2 O < Sub> 3 -（10-12）Si-（5-8）Hf]-（ZrO 2 -8Y 2 O 3 ）-β+ y'-相。作用：提高在可变热机械负载和高温氧化条件下运行的发动机零件的耐用性和可靠性。; 6 dwg，1 ex
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