Investigation of Ti-Fe-Co bulk alloys with high strength and enhanced ductility

Dmitri V. Louzguine-Luzgin; Larissa V. Louzguina-Luzgina; Hidemi Kato; Akihisa Inoue

doi:10.1016/j.actamat.2005.01.012

Investigation of Ti-Fe-Co bulk alloys with high strength and enhanced ductility

Dmitri V. Louzguine-Luzgin, Larissa V. Louzguina-Luzgina, Hidemi Kato, Akihisa Inoue

Research output: Contribution to journal › Article › peer-review

130 Citations (Scopus)

Abstract

High-strength Ti-Fe-Co alloys were produced in the shape of arc-melted ingots with the dimensions of about 20-25 mm in diameter and 7-10 mm in height. The structure of the Ti-Fe-Co alloys (at Fe/Co ratio >1) studied by X-ray diffractometry and scanning electron microscopy consisted of an ordered Pm3̄m Ti(FeCo) compound and a disordered body-centered cubic Im3̄m β-Ti solid solution. The optimization of the Ti-Fe-Co alloy composition is performed from the viewpoint of both high strength and ductility. The strongest Ti-Fe-Co alloys have a hypereutectic structure and exhibit a high strength of about 2000 MPa and a plastic deformation of 15%. The high strength and ductility values can be achieved without using the injection mould casting or rapid solidification procedure. The deformation behavior and the fractography of Ti-Fe-Co alloys are studied in detail.

Original language	English
Pages (from-to)	2009-2017
Number of pages	9
Journal	Acta Materialia
Volume	53
Issue number	7
DOIs	https://doi.org/10.1016/j.actamat.2005.01.012
Publication status	Published - 2005 Apr

Keywords

Mechanical properties
Scanning electron microscopy
X-ray diffraction

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10.1016/j.actamat.2005.01.012

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title = "Investigation of Ti-Fe-Co bulk alloys with high strength and enhanced ductility",

abstract = "High-strength Ti-Fe-Co alloys were produced in the shape of arc-melted ingots with the dimensions of about 20-25 mm in diameter and 7-10 mm in height. The structure of the Ti-Fe-Co alloys (at Fe/Co ratio >1) studied by X-ray diffractometry and scanning electron microscopy consisted of an ordered Pm{\=3}m Ti(FeCo) compound and a disordered body-centered cubic Im{\=3}m β-Ti solid solution. The optimization of the Ti-Fe-Co alloy composition is performed from the viewpoint of both high strength and ductility. The strongest Ti-Fe-Co alloys have a hypereutectic structure and exhibit a high strength of about 2000 MPa and a plastic deformation of 15%. The high strength and ductility values can be achieved without using the injection mould casting or rapid solidification procedure. The deformation behavior and the fractography of Ti-Fe-Co alloys are studied in detail.",

keywords = "Mechanical properties, Scanning electron microscopy, X-ray diffraction",

author = "Louzguine-Luzgin, {Dmitri V.} and Louzguina-Luzgina, {Larissa V.} and Hidemi Kato and Akihisa Inoue",

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T1 - Investigation of Ti-Fe-Co bulk alloys with high strength and enhanced ductility

AU - Louzguine-Luzgin, Dmitri V.

AU - Louzguina-Luzgina, Larissa V.

AU - Kato, Hidemi

AU - Inoue, Akihisa

PY - 2005/4

Y1 - 2005/4

N2 - High-strength Ti-Fe-Co alloys were produced in the shape of arc-melted ingots with the dimensions of about 20-25 mm in diameter and 7-10 mm in height. The structure of the Ti-Fe-Co alloys (at Fe/Co ratio >1) studied by X-ray diffractometry and scanning electron microscopy consisted of an ordered Pm3̄m Ti(FeCo) compound and a disordered body-centered cubic Im3̄m β-Ti solid solution. The optimization of the Ti-Fe-Co alloy composition is performed from the viewpoint of both high strength and ductility. The strongest Ti-Fe-Co alloys have a hypereutectic structure and exhibit a high strength of about 2000 MPa and a plastic deformation of 15%. The high strength and ductility values can be achieved without using the injection mould casting or rapid solidification procedure. The deformation behavior and the fractography of Ti-Fe-Co alloys are studied in detail.

AB - High-strength Ti-Fe-Co alloys were produced in the shape of arc-melted ingots with the dimensions of about 20-25 mm in diameter and 7-10 mm in height. The structure of the Ti-Fe-Co alloys (at Fe/Co ratio >1) studied by X-ray diffractometry and scanning electron microscopy consisted of an ordered Pm3̄m Ti(FeCo) compound and a disordered body-centered cubic Im3̄m β-Ti solid solution. The optimization of the Ti-Fe-Co alloy composition is performed from the viewpoint of both high strength and ductility. The strongest Ti-Fe-Co alloys have a hypereutectic structure and exhibit a high strength of about 2000 MPa and a plastic deformation of 15%. The high strength and ductility values can be achieved without using the injection mould casting or rapid solidification procedure. The deformation behavior and the fractography of Ti-Fe-Co alloys are studied in detail.

KW - Mechanical properties

KW - Scanning electron microscopy

KW - X-ray diffraction

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SP - 2009

EP - 2017

JO - Acta Materialia

JF - Acta Materialia

IS - 7

ER -

Investigation of Ti-Fe-Co bulk alloys with high strength and enhanced ductility

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Keywords

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