Effect of impurity reduction on mechanical properties of Fe29.5Ti70.5 alloy prepared by pretreated Ti scraps

Suhwan Yoo; Jung Min Oh; Jaeyeol Yang; Jaesik Yoon; Jae Won Lim

doi:10.24425/amm.2021.136370

Effect of impurity reduction on mechanical properties of Fe_29.5Ti_70.5 alloy prepared by pretreated Ti scraps

Suhwan Yoo
, Jung Min Oh
, Jaeyeol Yang
, Jaesik Yoon
, Jae Won Lim^*

^*Corresponding author for this work

Metallurgical System Engineering

Jeonbuk National University
Korea Basic Science Institute

Research output: Contribution to journal › Journal article › peer-review

1 Scopus citations

Abstract

Ferrotitanium can be produced as a method of recycling Ti scraps. The eutectic composition of ferrotitanium, Fe_29.5Ti_70.5, can be obtained as a nanocrystalline phase due to relatively low melting point. Fe_29.5Ti_70.5 in which FeTi and β-Ti form a lamellar structure have high strength but low strain. To improve this, impurities were removed through hydrogen plasma arc melting (hPAM) and annealed. hPAM can remove substitutional/interstitial solid solutions. As a result, from 6733 ppm to 4573 ppm of initial impurities were removed by hPAM process. in addition, the strain was improved by spheroidizing and coarsening the lamellar structure through annealing. The effect of impurities removed through hPAM on the Young’s modulus, yield strength, and strain was observed.

Original language	English
Pages (from-to)	729-733
Number of pages	5
Journal	Archives of Metallurgy and Materials
Volume	66
Issue number	3
DOIs	https://doi.org/10.24425/amm.2021.136370
State	Published - 2021

Keywords

Pre-treatment
Recycling
Refining
Ti scraps

Quacquarelli Symonds(QS) Subject Topics

Materials Science

Access to Document

10.24425/amm.2021.136370

Cite this

@article{bbca6c0d3e70402a8d6e5392e65af244,

title = "Effect of impurity reduction on mechanical properties of Fe29.5Ti70.5 alloy prepared by pretreated Ti scraps",

abstract = "Ferrotitanium can be produced as a method of recycling Ti scraps. The eutectic composition of ferrotitanium, Fe29.5Ti70.5, can be obtained as a nanocrystalline phase due to relatively low melting point. Fe29.5Ti70.5 in which FeTi and β-Ti form a lamellar structure have high strength but low strain. To improve this, impurities were removed through hydrogen plasma arc melting (hPAM) and annealed. hPAM can remove substitutional/interstitial solid solutions. As a result, from 6733 ppm to 4573 ppm of initial impurities were removed by hPAM process. in addition, the strain was improved by spheroidizing and coarsening the lamellar structure through annealing. The effect of impurities removed through hPAM on the Young{\textquoteright}s modulus, yield strength, and strain was observed.",

keywords = "Pre-treatment, Recycling, Refining, Ti scraps",

author = "Suhwan Yoo and Oh, \{Jung Min\} and Jaeyeol Yang and Jaesik Yoon and Lim, \{Jae Won\}",

note = "Publisher Copyright: {\textcopyright} 2021. The Author(s).",

year = "2021",

doi = "10.24425/amm.2021.136370",

language = "English",

volume = "66",

pages = "729--733",

journal = "Archives of Metallurgy and Materials",

issn = "1733-3490",

number = "3",

}

TY - JOUR

T1 - Effect of impurity reduction on mechanical properties of Fe29.5Ti70.5 alloy prepared by pretreated Ti scraps

AU - Yoo, Suhwan

AU - Oh, Jung Min

AU - Yang, Jaeyeol

AU - Yoon, Jaesik

AU - Lim, Jae Won

PY - 2021

Y1 - 2021

N2 - Ferrotitanium can be produced as a method of recycling Ti scraps. The eutectic composition of ferrotitanium, Fe29.5Ti70.5, can be obtained as a nanocrystalline phase due to relatively low melting point. Fe29.5Ti70.5 in which FeTi and β-Ti form a lamellar structure have high strength but low strain. To improve this, impurities were removed through hydrogen plasma arc melting (hPAM) and annealed. hPAM can remove substitutional/interstitial solid solutions. As a result, from 6733 ppm to 4573 ppm of initial impurities were removed by hPAM process. in addition, the strain was improved by spheroidizing and coarsening the lamellar structure through annealing. The effect of impurities removed through hPAM on the Young’s modulus, yield strength, and strain was observed.

AB - Ferrotitanium can be produced as a method of recycling Ti scraps. The eutectic composition of ferrotitanium, Fe29.5Ti70.5, can be obtained as a nanocrystalline phase due to relatively low melting point. Fe29.5Ti70.5 in which FeTi and β-Ti form a lamellar structure have high strength but low strain. To improve this, impurities were removed through hydrogen plasma arc melting (hPAM) and annealed. hPAM can remove substitutional/interstitial solid solutions. As a result, from 6733 ppm to 4573 ppm of initial impurities were removed by hPAM process. in addition, the strain was improved by spheroidizing and coarsening the lamellar structure through annealing. The effect of impurities removed through hPAM on the Young’s modulus, yield strength, and strain was observed.

KW - Pre-treatment

KW - Recycling

KW - Refining

KW - Ti scraps

UR - https://www.scopus.com/pages/publications/85108914248

U2 - 10.24425/amm.2021.136370

DO - 10.24425/amm.2021.136370

M3 - Journal article

AN - SCOPUS:85108914248

SN - 1733-3490

VL - 66

SP - 729

EP - 733

JO - Archives of Metallurgy and Materials

JF - Archives of Metallurgy and Materials

IS - 3

ER -