| 摘要 |
<p>A multilayer material comprises a substrate of aluminium, magnesium or one of their alloys, protected against erosion, abrasion and wear by a tungsten-based surface layer which is separated from the substrate by at least one layer whose mechanical or thermo-mechanical properties are intermediate between those of the substrate and surface layer. The intermediate layer(s) are of chromium, molybdenum, niobium, titanium, zirconium, their nitrides and carbides, solid solutions of carbon and nitrogen in those metals, and steels.</p> |
