| 摘要 |
<p>FIELD: metallurgy. ^ SUBSTANCE: multi-layer heat resistant coating is made with gradient of aluminium by thickness. Coating consists of alternate layers of thickness from 0.1 to 3 mcm each containing nickel, chromium, aluminium, and yttrium. Also, number of layers amounts from 10 to 100. Starting from surface of a specimen each successive layer has concentration of aluminium higher, than in a preceding layer. The first from surface of the specimen layer of coating contains aluminium - 4 %, nickel - 70.7 %, chromium - 25 %, yttrium - 0.3 %, while the last from surface of the specimen layer of coating contains - 12 %, nickel - 66.7 %, chromium - 21 %, yttrium - 0.3 %. ^ EFFECT: raised corrosion resistance. ^ 2 cl</p> |
