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1. (WO2017154587) SLIDING MATERIAL, SHAFT SLEEVE, AND PUMP PROVIDED WITH SHAFT SLEEVE

Pub. No.:    WO/2017/154587    International Application No.:    PCT/JP2017/006735
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Feb 24 00:59:59 CET 2017
IPC: C22C 29/10
C22C 29/02
F04D 29/046
F16C 33/12
Applicants: EBARA CORPORATION
株式会社荏原製作所
NIPPON TUNGSTEN CO., LTD
日本タングステン株式会社
Inventors: ITO, Nobuaki
伊藤 暢晃
SUGIYAMA, Kenichi
杉山 憲一
YAKUWA, Hiroshi
八鍬 浩
TAKAHASHI, Norio
高橋 則雄
KOMIYA, Makoto
小宮 真
FUJIMOTO, Kenji
藤本 賢二
Title: SLIDING MATERIAL, SHAFT SLEEVE, AND PUMP PROVIDED WITH SHAFT SLEEVE
Abstract:
Provided is a TiCx-(Ti-Mo) sliding material having a binder phase that comprises a Ti-Mo alloy, and a hard phase that includes TiCx, wherein the TiCx-(Ti-Mo) sliding material is characterized by satisfying all of the following conditions: (1) the total area of the binder phase and the hard phase is 90% or more of the visual field area; (2) the total area of the binder phase is 15-20% of the visual field area; (3) the total area within the binder phase that corresponds to a case of a diameter of 10-50 µm, calculated under the assumption that the area is the area of a circle, is 60-80% of the total area of the binder phase; (4) the total area within the binder phase that corresponds to a case of a diameter of less than 10 µm, calculated under the assumption that the area is the area of a circle, is 20-40% of the total area of the binder phase; and (5) the Mo concentration in the binder phase is 25-35 wt%.