Effect of Single Power Two Circuits Electroslag Remelting Process on the Ingot Solidification Quality

被引：17

作者：

Cao, Haibo ^{[1
]}

Jiang, Zhouhua ^{[1
]}

Dong, Yanwu ^{[1
]}

Liu, Fubin ^{[1
]}

Cao, Yulong ^{[1
]}

Hou, Zhiwen ^{[1
]}

Yao, Kean ^{[1
]}

Xu, Mingxiang ^{[1
]}

机构：

[1] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China

来源：

STEEL RESEARCH INTERNATIONAL | 2019年 / 90卷 / 02期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

current carrying mold; electroslag remelting; local solidification time; molten pool; secondary dendrite arm spacing (SDAS); segregation; single power two circuits; 2-CIRCUIT ESR PROCESS; STEEL;

D O I：

10.1002/srin.201800337

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The laboratory experiments have been carried out to investigate the effects of different power supply circuits on the solidification quality of GCr15 manufactured by the single-power, two-circuit electroslag remelting process. According to the previous research, the different power supply circuits are named as conventional electroslag remelting withdrawal process (ESRW), single power two circuits electroslag remelting process (ESR-STCCM) with up power process (ESR-STCCM-U) and down power process (ESR-STCCM-D), respectively. The profile and depth of the molten pool, macroscopic and microscopic solidification structure, macrosegregation and microsegregation (macro-/microsegregation) are analyzed. Compared with the ESRW process, ESR-STCCM process can obtain a flatter and shallower molten pool. Besides, experimental and numerical results adequately prove ESR-STCCM process can reduce the width of the mushy zone and the local solidification time (LST), therefore, the macro-/microsegregation of segregation elements for ESR-STCCM process are dramatically improved compared with ESRW process, especially for ESR-STCCM-D process.

引用

页数：9

共 33 条

[21]

Liu Z. Y., 1995, ACTA METALL SIN, V31, P330

[22] Development of Ultrahigh Strength Low Alloy Steel through Electroslag Refining Process [J].

Maity, S. K. ;

Ballal, N. B. ;

Goldhahn, G. ;

Kawalla, R. .

ISIJ INTERNATIONAL, 2009, 49 (06) :902-910

[23]

Malara C., 2005, P SUPERALLOYS 718 62, P25

[24] Concept of a Universal ESR Furnace for the Production of Large Ingots [J].

Medovar, L. B. ;

Stovpchenko, A. P. ;

Saenko, V. Ya. ;

Noshchenko, G. V. ;

Fedorovskii, B. B. ;

Petrenko, V. L. ;

Lantsman, I. A. ;

Zhuravel, V. M. .

RUSSIAN METALLURGY, 2011, (12) :1118-1123

[25]

Medovar L. B., 2005, P 2005 INT S LIQ MET, P131

[26]

Medovar L.B., 2001, P MED MEM S, P49

[27] Improving the electroslag remelting of steel and alloys [J].

Paton B.E. ;

Medovar L.B. .

Steel in Translation, 2008, 38 (12) :1028-1032

[28]

Schilke P. W., 1994, SUPERALLOYS, V12, P1

[29]

Tsykulenko A. K., 2000, ADV SPEC ELECTROMETA, V16, P141

[30]

Uginet J. F., 2005, P 6 INT SPEC EMPH S, P57

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