Title:
A titanium cast piece for hot-rolling which a surface crack does not generate easily, and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6075387
Kind Code:
B2
Abstract:
Provided is a titanium cast product for hot rolling made of a titanium alloy, the titanium cast product including a melted and resolidified layer in a range of more than or equal to 1 mm in depth on a surface serving as a rolling surface, the melted and resolidified layer being obtained by adding one or more elements out of any one of or both of at least one ± stabilizer element and at least one neutral element to the surface, and melting and resolidifying the surface. An average value of a total concentration of at least one ± stabilizer element and at least one neutral element in the range of more than or equal to 1 mm in depth is higher than a total concentration of at least one ± stabilizer element and at least one neutral element in a base metal by, in mass%, more than or equal to 0.1% and less than 2.0%.
Inventors:
Kunieda Chitoku
Yoshitsugu Tachizawa
Hideki Fujii
Yoshitsugu Tachizawa
Hideki Fujii
Application Number:
JP2014549254A
Publication Date:
February 08, 2017
Filing Date:
September 30, 2014
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
C23C26/00; B21B1/02; B21B3/00; B22D21/06; B22D29/00; C22C1/02; C22C14/00
Domestic Patent References:
| JP2007332420A | 2007-12-27 | |||
| JPS6256561A | 1987-03-12 | |||
| JPH01156457A | 1989-06-20 | |||
| JPH04272147A | 1992-09-28 | |||
| JPH05148598A | 1993-06-15 | |||
| JP2014233753A | 2014-12-15 |
Foreign References:
| WO2012144561A1 | 2012-10-26 | |||
| WO2012108319A1 | 2012-08-16 | |||
| WO2012144561A1 | 2012-10-26 |
Attorney, Agent or Firm:
Koji Hagiwara
Tetsuo Kanamoto
Miaki Kametani
Tetsuo Kanamoto
Miaki Kametani