Title:
TITANIUM ALLOY PLATE, MANUFACTURING METHOD FOR TITANIUM ALLOY PLATE, COPPER FOIL MANUFACTURING DRUM, AND MANUFACTURING METHOD FOR COPPER FOIL MANUFACTURING DRUM
Document Type and Number:
WIPO Patent Application WO/2020/213719
Kind Code:
A1
Abstract:
This titanium alloy plate has a chemical composition containing, in terms of mass%: a total of 0.2-7.0% of one type or two or more types selected from the group consisting of 0-2.0% of Sn, 0-5.0% of Zr, and 0-7.0% of Al; at most 0.100% of N; at most 0.080% of C; at most 0.015% of H; at most 0.700% of O; and at most 0.500% of Fe, with the balance consisting of Ti and impurities. The average crystal grain size is 40 μm or less, the standard deviation of the grain size distribution based on the logarithm of the crystal grain size (μm) is 0.80 or less, the crystal structure includes an α phase having a hexagonal close-packed structure, and the area ratio of crystal grains, in which the angle formed in the [0001] direction of the α phase with respect to the plate thickness direction is 0-40 degrees, is 70% or more.
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Inventors:
KUNIEDA TOMONORI (JP)
TAKEBE HIDENORI (JP)
MIYOSHI RYOTARO (JP)
TAKAHASHI KAZUHIRO (JP)
GOTO MAMORU (JP)
KURODA ATSUHIKO (JP)
SARUWATARI SUO (JP)
TAKEBE HIDENORI (JP)
MIYOSHI RYOTARO (JP)
TAKAHASHI KAZUHIRO (JP)
GOTO MAMORU (JP)
KURODA ATSUHIKO (JP)
SARUWATARI SUO (JP)
Application Number:
PCT/JP2020/016899
Publication Date:
October 22, 2020
Filing Date:
April 17, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21B3/00; B23K35/32; C22C14/00; C22F1/00; C22F1/18; C25D17/10
Foreign References:
| JP2013007063A | 2013-01-10 | |||
| JP2004250753A | 2004-09-09 | |||
| JP2004002953A | 2004-01-08 | |||
| JP2000045091A | 2000-02-15 | |||
| JPH11226608A | 1999-08-24 | |||
| JPS609866A | 1985-01-18 | |||
| US5240582A | 1993-08-31 | |||
| JPH06335769A | 1994-12-06 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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