Refining effect of hydrogen plasma arc melting on titanium sponges

K. Mimura; J. W. Lim; J. M. Oh; G. S. Choi; S. W. Cho; M. Uchikoshi; M. Isshiki

doi:10.1016/j.matlet.2009.11.033

Refining effect of hydrogen plasma arc melting on titanium sponges

K. Mimura
, J. W. Lim^*
, J. M. Oh
, G. S. Choi
, S. W. Cho
, M. Uchikoshi
, M. Isshiki

^*Corresponding author for this work

Tohoku University
Korea Institute of Geoscience and Mineral Resources
Chungnam National University

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

34 Scopus citations

Abstract

Hydrogen plasma arc melting (HPAM) of commercial Ti sponges (> 99.7%) was examined. Ti sponges had main impurities such as Fe, Al, Cl and Mn. These main impurities could be reduced more efficiently by HPAM than by Ar PAM. Other small amount of impurities also had a tendency of reduction by HPAM. In addition, it was found that each removal degree is attributable to a differential refining effect caused by the difference of initial impurity concentration. For the unique refining effect of HPAM, dissociated and activated hydrogen atoms involved in the high temperature plasma arc are considered to play an important role in the melting process.

Original language	English
Pages (from-to)	411-414
Number of pages	4
Journal	Materials Letters
Volume	64
Issue number	3
DOIs	https://doi.org/10.1016/j.matlet.2009.11.033
State	Published - 2010.02.15

Keywords

Glow discharge mass spectrometry
Impurity
Metallurgy
Metals and alloys
Refining
Titanium

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10.1016/j.matlet.2009.11.033

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title = "Refining effect of hydrogen plasma arc melting on titanium sponges",

abstract = "Hydrogen plasma arc melting (HPAM) of commercial Ti sponges (> 99.7\%) was examined. Ti sponges had main impurities such as Fe, Al, Cl and Mn. These main impurities could be reduced more efficiently by HPAM than by Ar PAM. Other small amount of impurities also had a tendency of reduction by HPAM. In addition, it was found that each removal degree is attributable to a differential refining effect caused by the difference of initial impurity concentration. For the unique refining effect of HPAM, dissociated and activated hydrogen atoms involved in the high temperature plasma arc are considered to play an important role in the melting process.",

keywords = "Glow discharge mass spectrometry, Impurity, Metallurgy, Metals and alloys, Refining, Titanium",

author = "K. Mimura and Lim, \{J. W.\} and Oh, \{J. M.\} and Choi, \{G. S.\} and Cho, \{S. W.\} and M. Uchikoshi and M. Isshiki",

year = "2010",

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doi = "10.1016/j.matlet.2009.11.033",

language = "English",

volume = "64",

pages = "411--414",

journal = "Materials Letters",

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TY - JOUR

T1 - Refining effect of hydrogen plasma arc melting on titanium sponges

AU - Mimura, K.

AU - Lim, J. W.

AU - Oh, J. M.

AU - Choi, G. S.

AU - Cho, S. W.

AU - Uchikoshi, M.

AU - Isshiki, M.

PY - 2010/2/15

Y1 - 2010/2/15

N2 - Hydrogen plasma arc melting (HPAM) of commercial Ti sponges (> 99.7%) was examined. Ti sponges had main impurities such as Fe, Al, Cl and Mn. These main impurities could be reduced more efficiently by HPAM than by Ar PAM. Other small amount of impurities also had a tendency of reduction by HPAM. In addition, it was found that each removal degree is attributable to a differential refining effect caused by the difference of initial impurity concentration. For the unique refining effect of HPAM, dissociated and activated hydrogen atoms involved in the high temperature plasma arc are considered to play an important role in the melting process.

AB - Hydrogen plasma arc melting (HPAM) of commercial Ti sponges (> 99.7%) was examined. Ti sponges had main impurities such as Fe, Al, Cl and Mn. These main impurities could be reduced more efficiently by HPAM than by Ar PAM. Other small amount of impurities also had a tendency of reduction by HPAM. In addition, it was found that each removal degree is attributable to a differential refining effect caused by the difference of initial impurity concentration. For the unique refining effect of HPAM, dissociated and activated hydrogen atoms involved in the high temperature plasma arc are considered to play an important role in the melting process.

KW - Glow discharge mass spectrometry

KW - Impurity

KW - Metallurgy

KW - Metals and alloys

KW - Refining

KW - Titanium

UR - https://www.scopus.com/pages/publications/72049106924

U2 - 10.1016/j.matlet.2009.11.033

DO - 10.1016/j.matlet.2009.11.033

M3 - Journal article

AN - SCOPUS:72049106924

SN - 0167-577X

VL - 64

SP - 411

EP - 414

JO - Materials Letters

JF - Materials Letters

IS - 3

ER -

Refining effect of hydrogen plasma arc melting on titanium sponges

Abstract

Keywords

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