Title:
Ｔｉ−Ａｌ系合金の表面処理方法
Document Type and Number:
Japanese Patent JP6649816
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a surface treatment method of a Ti-Al-based alloy capable of removing an oxide layer or an oxygen concentrated layer formed on a surface of the Ti-Al-based alloy without being affected by material loss or contamination of a base material.SOLUTION: There is provided a method for removing an oxide layer or an oxygen concentrated layer from an alloy surface by impregnating a Ti-Al-based alloy having the oxide layer or the oxygen concentrated layer formed thereon with a molten salt consisting of CaCl, the alloy contains Al of 30.0 to 36.0 mass%, Nb of 4.0 to 6.0 mass, Cr of 2.0 to 4.0 mass% and the balance Ti with inevitable impurities, and a CaAl alloy with an Al concentration of 10.0 to 15.0 mass% as a reductant and a deoxidant is added to the molten salt consisting of CaClso that the CaAl alloy concentration in the molten salt is 10.0 mass% or more.SELECTED DRAWING: Figure 2
Inventors:
Daisuke Matsuwaka
Kudo Fumiaki
Satoshi Deura
Kudo Fumiaki
Satoshi Deura
Application Number:
JP2016047697A
Publication Date:
February 19, 2020
Filing Date:
March 11, 2016
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C23G1/34; C22B34/12; C22C14/00; C22C24/00; C23G1/32
Domestic Patent References:
| JP2002517613A | ||||
| JP5295470A | ||||
| JP2111890A |
Other References:
T.H.OKABE et al.,Deoxidation of Titanium Aluminide by Ca-Al Alloy under Controlled Aluminium Activity,Metallurgical Transactions B,1992年,Vol. 23B,Page. 583-590
Attorney, Agent or Firm:
Kaji/Suhara Patent Office
Seiji Kameoka
Hironori Takenaka
Toru Sakatani
Seiji Kameoka
Hironori Takenaka
Toru Sakatani