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1. (WO2018038151) MULTILAYER STRUCTURE AND MACHINE COMPONENT HAVING MULTILAYER STRUCTURE

Pub. No.:    WO/2018/038151    International Application No.:    PCT/JP2017/030096
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Thu Aug 24 01:59:59 CEST 2017
IPC: F01D 5/28
B32B 15/04
C23C 16/02
C23C 16/27
F01D 25/00
F04C 15/00
Applicants: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
三菱重工コンプレッサ株式会社
Inventors: KONNO, Yuya
紺野 勇哉
YASUI, Toyoaki
安井 豊明
KAWANO, Masaki
河野 将樹
Title: MULTILAYER STRUCTURE AND MACHINE COMPONENT HAVING MULTILAYER STRUCTURE
Abstract:
Provided are: a multilayer structure which has achieved a good balance between erosion resistance and fouling resistance; and a component for rotary machines, which has this multilayer structure. A multilayer structure 1 according to the present invention is characterized by having: a nitride layer 5 which is formed on the surface of a base material 3 by subjecting the base material 3 to a nitriding treatment; an intermediate layer 6 which is formed on the surface of the nitride layer 5; and a DLC layer (diamond like carbon layer) 7 which is formed on the surface of the intermediate layer 6. This multilayer structure 1 is applicable to a component that is used in a rotary machine such as a steam turbine.