Title:
TiAl-BASED ALLOY CASTING MATERIAL AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
Japanese Patent JP2017148844
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for production of a TiAl-based alloy member having an included ductile material in a final product using a melting and casting method more considerably convenient than a powder sintering method and having high dimensional accuracy.SOLUTION: A method for production of a TiAl-based alloy member comprises: a process of disposing in a molten metal-poured casting mold, a high-melting point metal member having a melting point higher than that of the molten metal of the TiAl-based alloy and having high ductility at normal temperature, and further disposing the high-melting point metal member to fix in the casting mold using an Al foil; a process of pouring the molten TiAl-based alloy in the casting mold; and a process in which the Al foil contacts the molten TiAl-based alloy to melt in the alloy. In the produced casting member, a high-melting point metal having ductility is included in the TiAl-based alloy, and a thin reaction phase exists on the boundary face between the high-melting point metal and the TiAl-based alloy.SELECTED DRAWING: Figure 2
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Inventors:
TETSUI TOSHIMITSU
Application Number:
JP2016034120A
Publication Date:
August 31, 2017
Filing Date:
February 25, 2016
Export Citation:
Assignee:
NAT INST MATERIALS SCIENCE
International Classes:
B22D19/00; B22D19/16; B22D27/18; C22C1/02; C22C14/00