Title:
TITANIUM ALLOY WIRE ROD AND METHOD FOR MANUFACTURING TITANIUM ALLOY WIRE ROD
Document Type and Number:
WIPO Patent Application WO/2020/101008
Kind Code:
A1
Abstract:
A titanium alloy wire rod including an α phase and a β phase, the metallographic structure in an outer circumferential region extending from the surface toward the center of gravity to a depth of 3% of the wire diameter being an isometric structure having α crystal grains in which the average crystal grain size thereof is 10.0 µm or less in a cross section perpendicular to the longitudinal direction, and the metallographic structure in an internal region including the center of gravity and extending to a position at 20% of the wire diameter from the center of gravity to the surface being an acicular structure in a cross section perpendicular to the longitudinal direction.
Inventors:
TSUKAMOTO GENKI (JP)
KUNIEDA TOMONORI (JP)
MIYOSHI RYOTARO (JP)
TAKAHASHI KAZUHIRO (JP)
YAMAZAKI TATSUO (JP)
KUNIEDA TOMONORI (JP)
MIYOSHI RYOTARO (JP)
TAKAHASHI KAZUHIRO (JP)
YAMAZAKI TATSUO (JP)
Application Number:
PCT/JP2019/044788
Publication Date:
May 22, 2020
Filing Date:
November 14, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C22C14/00; C22F1/18; C22F1/00
Domestic Patent References:
| WO2002070763A1 | 2002-09-12 | |||
| WO2018181937A1 | 2018-10-04 |
Foreign References:
| JPH06184683A | 1994-07-05 | |||
| JP2005089834A | 2005-04-07 | |||
| JPS58148016A | 1983-09-03 | |||
| JP2001040462A | 2001-02-13 |
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (JP)
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