Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2011-08-16
2011-08-16
Kiliman, Leszek (Department: 1788)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C428S404000, C428S548000, C428S570000, C428S650000, C428S666000, C427S212000
Reexamination Certificate
active
07998581
ABSTRACT:
A solid particle erosion resistant surface treated coating has a solid particle erosion resistance that is largely enhanced and a rotating member having the coating gains oxidation resistance without deteriorating a fatigue strength. Also, a rotating machine can have this coating applied thereto. The solid particle erosion resistant surface treated coating has a nitrided hard layer formed on a surface of a base material and a PVD (physical vapor deposition) hard layer of at least one layer formed on the nitrided hard layer by a PVD method. Deformation of the base material by collisions by solid particles is prevented and cracking of the coating is prevented. Thereby, the solid particle erosion resistance is secured, life of the solid particle erosion resistant surface treated coating can be increased and oxidation resistance and fatigue strength are enhanced.
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Hananaka Katsuyasu
Ikeno Kyoichi
Iwasaki Shugo
Yamada Yoshikazu
Yasui Toyoaki
Kiliman Leszek
Mitsubishi Heavy Industires, Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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