Formation of ductile ultrafine eutectic structure in Ti-Fe-Sn alloy

J. Das; K. B. Kim; W. Xu; W. Löser; J. Eckert

doi:10.1016/j.msea.2006.02.374

Formation of ductile ultrafine eutectic structure in Ti-Fe-Sn alloy

J. Das^*, K. B. Kim, W. Xu, W. Löser, J. Eckert

^*Corresponding author for this work

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

37 Citations (Scopus)

Abstract

A Ti_67.79Fe_28.36Sn_3.85 (at.%) alloy has been prepared through arc-melting and solidification at a cooling rate of 40-10 K/s. The as-prepared microstructure exhibits a two-phase ultrafine eutectic consisting of FeTi (B2) and β-Ti (A2) phases. The mechanical properties (maximum strength, σ_max = 1939 MPa; strain to fracture, ε_f = 13.5%) are considerably improved if compared with the model Ti_70.5Fe_29.5 eutectic alloy (σ_max = 1733 MPa, ε_f = 3.4%). The improvement of plastic deformability is assessed in terms of a detailed investigation of the microstructure and fractographic studies. The presence of Sn is believed to boost the ease of slip transfer across the interface between the A2/B2 phases due a higher lattice mismatch between the structures.

Original language	English
Pages (from-to)	737-740
Number of pages	4
Journal	Materials Science and Engineering A
Volume	448-451
DOIs	https://doi.org/10.1016/j.msea.2006.02.374
Publication status	Published - 25 Mar 2007
Externally published	Yes

Keywords

Fracture
Mechanical properties
Ti-alloys
Ultrafine eutectic

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10.1016/j.msea.2006.02.374

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title = "Formation of ductile ultrafine eutectic structure in Ti-Fe-Sn alloy",

abstract = "A Ti67.79Fe28.36Sn3.85 (at.\%) alloy has been prepared through arc-melting and solidification at a cooling rate of 40-10 K/s. The as-prepared microstructure exhibits a two-phase ultrafine eutectic consisting of FeTi (B2) and β-Ti (A2) phases. The mechanical properties (maximum strength, σmax = 1939 MPa; strain to fracture, εf = 13.5\%) are considerably improved if compared with the model Ti70.5Fe29.5 eutectic alloy (σmax = 1733 MPa, εf = 3.4\%). The improvement of plastic deformability is assessed in terms of a detailed investigation of the microstructure and fractographic studies. The presence of Sn is believed to boost the ease of slip transfer across the interface between the A2/B2 phases due a higher lattice mismatch between the structures.",

keywords = "Fracture, Mechanical properties, Ti-alloys, Ultrafine eutectic",

author = "J. Das and Kim, \{K. B.\} and W. Xu and W. L{\"o}ser and J. Eckert",

year = "2007",

month = mar,

day = "25",

doi = "10.1016/j.msea.2006.02.374",

language = "English",

volume = "448-451",

pages = "737--740",

journal = "Materials Science and Engineering A",

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TY - JOUR

T1 - Formation of ductile ultrafine eutectic structure in Ti-Fe-Sn alloy

AU - Das, J.

AU - Kim, K. B.

AU - Xu, W.

AU - Löser, W.

AU - Eckert, J.

PY - 2007/3/25

Y1 - 2007/3/25

N2 - A Ti67.79Fe28.36Sn3.85 (at.%) alloy has been prepared through arc-melting and solidification at a cooling rate of 40-10 K/s. The as-prepared microstructure exhibits a two-phase ultrafine eutectic consisting of FeTi (B2) and β-Ti (A2) phases. The mechanical properties (maximum strength, σmax = 1939 MPa; strain to fracture, εf = 13.5%) are considerably improved if compared with the model Ti70.5Fe29.5 eutectic alloy (σmax = 1733 MPa, εf = 3.4%). The improvement of plastic deformability is assessed in terms of a detailed investigation of the microstructure and fractographic studies. The presence of Sn is believed to boost the ease of slip transfer across the interface between the A2/B2 phases due a higher lattice mismatch between the structures.

AB - A Ti67.79Fe28.36Sn3.85 (at.%) alloy has been prepared through arc-melting and solidification at a cooling rate of 40-10 K/s. The as-prepared microstructure exhibits a two-phase ultrafine eutectic consisting of FeTi (B2) and β-Ti (A2) phases. The mechanical properties (maximum strength, σmax = 1939 MPa; strain to fracture, εf = 13.5%) are considerably improved if compared with the model Ti70.5Fe29.5 eutectic alloy (σmax = 1733 MPa, εf = 3.4%). The improvement of plastic deformability is assessed in terms of a detailed investigation of the microstructure and fractographic studies. The presence of Sn is believed to boost the ease of slip transfer across the interface between the A2/B2 phases due a higher lattice mismatch between the structures.

KW - Fracture

KW - Mechanical properties

KW - Ti-alloys

KW - Ultrafine eutectic

UR - https://www.scopus.com/pages/publications/33847253840

U2 - 10.1016/j.msea.2006.02.374

DO - 10.1016/j.msea.2006.02.374

M3 - Article

AN - SCOPUS:33847253840

SN - 0921-5093

VL - 448-451

SP - 737

EP - 740

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

ER -

Formation of ductile ultrafine eutectic structure in Ti-Fe-Sn alloy

Abstract

Keywords

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