Refining effect of hydrogen plasma arc melting on titanium sponges

被引：28

作者：

Mimura, K. ^{[2
]}

Lim, J. -W. ^{[1
]}

Oh, J. -M. ^{[1
,3
]}

Choi, G. -S. ^{[1
]}

Cho, S. -W. ^{[1
]}

Uchikoshi, M. ^{[2
]}

Isshiki, M. ^{[2
]}

机构：

[1] Korea Inst Geosci & Mineral Resources, Mineral Resources Res Div, Taejon 305350, South Korea

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[3] Chungnam Natl Univ, Dept Met Engn, Taejon 305764, South Korea

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 03期

关键词：

Titanium; Metallurgy; Refining; Metals and alloys; Impurity; Glow discharge mass spectrometry; THERMODYNAMIC ESTIMATION; IMPURITY REMOVAL; ZIRCONIUM; TANTALUM; HYDRIDE; METALS;

D O I：

10.1016/j.matlet.2009.11.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 At 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. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：411 / 414

页数：4

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