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pISSN : 1598-706X / eISSN : 2288-8381


(논문)연구논문

한국주조공학회지 (28권2호 69-73)

Sn Effects on Microstructure and Mechanical Properties of Ultrafine Ti-Fe-Sn Alloys

Sn 첨가에 따른 극미세 Ti-Fe-Sn 합금의 미세조직 및 기계적 성질 변화

Jun-Hee Han, Gi-An Song, Dong-Hyouk Pi, Chang-Wook Bang, Ki-Buem Kim

sejong university

Abstract

In the present study, microstructural evolution and mechanical properties of Ti-Fe-Sn ultrafine eutectic alloys have been investigated. Ultrafine eutectic microstructure consisting of a mixture of β- Ti solid solution and TiFe intermetallic compound homogeneously formed in alloys with x = 0, 1 and 3. Addition of Sn is effective to modify the eutectic colony into the spherical shape with decreasing the lamellar spacing and colony size. This results in enhancing the macroscopic plasticity up to 3.1% of the Ti-Fe-Sn ultrafine eutectic alloys.

Keywords

Ti-Fe alloy, Eutectic alloy, Microstructure, Strength, Phase transformation, Metestable phase