Title:
TITANIUM-BASED ALLOY MEMBER, METHOD FOR MANUFACTURING TITANIUM-BASED ALLOY MEMBER, AND PRODUCT MANUFACTURED USING TITANIUM-BASED ALLOY MEMBER
Document Type and Number:
Japanese Patent JP2019073760
Kind Code:
A
Abstract:
To provide a heat-resistant titanium alloy member having high mechanical characteristics and high oxidation resistance under high temperature and having a small mechanical anisotropy, to provide a manufacturing method thereof and to provide a product manufactured using the alloy member.SOLUTION: The titanium-based alloy member is a titanium (Ti)-based alloy member which comprises as the main element titanium (Ti), includes at least 0.5 to 2.0 mass% of boron (B) and has fibrous TiB particles dispersed and precipitated in a polycrystalline matrix phase. The TiB particles have a major axis of 1 to 10 μm and a minor axis of 0.01 to 0.5 μm, has an aspect ratio of 2 to 1,000 and are precipitated in a crystallographically random direction in each crystal grain of the matrix phase.SELECTED DRAWING: Figure 4A
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Inventors:
FUJIEDA TADASHI
KUWABARA KOSUKE
ONUMA ATSUHIKO
CHIBA MASAHIKO
KOIZUMI YUICHIRO
YAMANAKA KENTA
KUWABARA KOSUKE
ONUMA ATSUHIKO
CHIBA MASAHIKO
KOIZUMI YUICHIRO
YAMANAKA KENTA
Application Number:
JP2017199878A
Publication Date:
May 16, 2019
Filing Date:
October 13, 2017
Export Citation:
Assignee:
HITACHI LTD
UNIV TOHOKU
UNIV TOHOKU
International Classes:
C22C14/00; B22F3/10; B22F3/105; B22F3/16; B22F3/24; B22F9/08; F01D5/28; F01D25/00; F02C7/00; F04D29/02; F04D29/38
Attorney, Agent or Firm:
Hiraki International Patent Office