Effect of impurity levels on precipitation behavior in the low-activation V-4Cr-4Ti alloys

被引：51

作者：

Heo, NJ

Nagasaka, T

Muroga, T

Matsui, H

机构：

[1] Grad Univ Adv Studies, Sch Math & Phys Sci, Dept Fus Sci, Gifu 5095292, Japan

[2] Natl Inst Fus Sci, Gifu 5095292, Japan

[3] Tohoku Univ, Mat Res Inst, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 2002年 / 307卷

关键词：

D O I：

10.1016/S0022-3115(02)01040-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The precipitation behavior of the V-4Cr-4Ti model alloys with different oxygen and nitrogen levels has been investigated. Fine and large precipitates were observed. Large precipitates were formed during the initial fabrication process and were stable to 1373 K. Fine precipitates were formed at 973 K and disappeared at 1373 K. The dependence of the hardness and microstructure on oxygen and nitrogen levels at various annealing temperatures showed that most of nitrogen impurities are included into the large precipitates, and oxygen impurities are partitioned into the large, fine precipitates and the matrix. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：620 / 624

页数：5

相关论文

共 12 条

[1]

Chung H.M., 1994, DOEER031317, P178

[2] Development and testing of vanadium alloys for fusion applications [J].

Chung, HM ;

Loomis, BA ;

Smith, DL .

JOURNAL OF NUCLEAR MATERIALS, 1996, 239 (1-3) :139-156

[3] ALLOYING AND IMPURITY EFFECTS IN VANADIUM-BASE ALLOYS [J].

DIERCKS, DR ;

LOOMIS, BA .

JOURNAL OF NUCLEAR MATERIALS, 1986, 141 :1117-1124

[4] Development of techniques for welding V-Cr-Ti alloys [J].

Grossbeck, ML ;

King, JF ;

Alexander, DJ ;

Rice, PM ;

Goodwin, GM .

JOURNAL OF NUCLEAR MATERIALS, 1998, 258 :1369-1374

[5] Fabrication of a 1200 kg ingot of V-4Cr-4Ti alloy for the DIII-D radiative divertor program [J].

Johnson, WR ;

Smith, JP .

JOURNAL OF NUCLEAR MATERIALS, 1998, 258 :1425-1430

[6] Critical issues and current status of vanadium alloys for fusion energy applications [J].

Kurtz, RJ ;

Abe, K ;

Chernov, VM ;

Kazakov, VA ;

Lucas, GE ;

Matsui, H ;

Muroga, T ;

Odette, GR ;

Smith, DL ;

Zinkle, SJ .

JOURNAL OF NUCLEAR MATERIALS, 2000, 283 :70-78

[7] EFFECTS OF NEUTRON-IRRADIATION AND HYDROGEN ON DUCTILE-BRITTLE TRANSITION-TEMPERATURES OF V-CR-TI ALLOYS [J].

LOOMIS, BA ;

CHUNG, HM ;

NOWICKI, LJ ;

SMITH, DL .

JOURNAL OF NUCLEAR MATERIALS, 1994, 212 (pt A) :799-803

[8] Status of vanadium alloys for fusion reactors [J].

Matsui, H ;

Fukumoto, K ;

Smith, DL ;

Chung, HM ;

vanWitzenburg, W ;

Votinov, SN .

JOURNAL OF NUCLEAR MATERIALS, 1996, 233 :92-99

[9] NIFS program for large ingot production of a V-Cr-Ti alloy [J].

Muroga, T ;

Nagasaka, T ;

Iiyoshi, A ;

Kawabata, A ;

Sakurai, S ;

Sakata, M .

JOURNAL OF NUCLEAR MATERIALS, 2000, 283 (283-287) :711-715

[10] Recovery and recrystallization behavior of vanadium at various controlled nitrogen and oxygen levels [J].

Nagasaka, T ;

Takahashi, H ;

Muroga, T ;

Tanabe, T ;

Matsui, H .

JOURNAL OF NUCLEAR MATERIALS, 2000, 283 :816-821