| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust guide assembly for a new VGS turbocharger, having improved high-temperature wear resistance, oxidation resistance, and hot hardness, or the like. SOLUTION: High-temperature wear resistance, oxidation resistance, and hot hardness at elevated temperatures, or the like are improved by composing the constituent member of the exhaust guide assembly A, such as a variable blade 1, a turbine frame 2 or the varying mechanism 3 by a high nickel - high chromium heat-resisting member based heat resisting member and forming a coat of chromium carbide on the surface of the member, after ionizing carbon atoms in a plasma state under reduced pressure and a cementation treatment to the member in a state of non-equilibrium solid solution of ionized carbon atoms, using the member as an electrode. |
