Title:
TITANIUM SLAB AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2021/020808
Kind Code:
A1
Abstract:
The present invention provides a titanium slab and a method for manufacturing same, the titanium slab comprising a titanium base and an oxygen enrichment layer disposed on the surface of the pure titanium base, wherein: the center portion of the pure titanium base is composed of a cast structure and a forged structure; a surface portion, which ranges from the surface of the base including the oxygen enrichment layer to the depth of 5-10 mm in a thickness direction, is composed of a spherical recrystalline structure having an average crystal grain size of 10-500 μm; and the oxygen enrichment layer has a maximum thickness of 1 mm or less (including 0 mm).
Inventors:
KIM KYUNG-SEOK (KR)
LEE HYUN-SEOK (KR)
CHOI HO-JUNG (KR)
LEE HYUN-SEOK (KR)
CHOI HO-JUNG (KR)
Application Number:
PCT/KR2020/009737
Publication Date:
February 04, 2021
Filing Date:
July 23, 2020
Export Citation:
Assignee:
POSCO (KR)
International Classes:
C22F1/18; B21B1/38; B21B3/00; B21B37/74; C22C14/00
Foreign References:
| KR20180074381A | 2018-07-03 | |||
| JPS61204359A | 1986-09-10 | |||
| KR20170047332A | 2017-05-04 | |||
| KR101522799B1 | 2015-05-26 | |||
| KR20150131288A | 2015-11-24 |
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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