Formation of MC-γ/γ′ eutectic fibers and their effect on stress rupture behavior in D/S Mar-M247LC superalloy

被引：44

作者：

Bae, JS

Lee, JH ^{[1
]}

Kim, SS

Jo, CY

机构：

[1] Changwon Natl Univ, Dept Met & Mat Sci, Sarim Dong 641773, Changwon, South Korea

[2] Gyeongsung Natl Univ, Ctr Adv Mat Res, Div Mat Sci & Engn, Chinju 660701, South Korea

[3] KIMM, High Temp Mat Lab, Chang Won 641010, South Korea

来源：

SCRIPTA MATERIALIA | 2001年 / 45卷 / 05期

关键词：

solidification; nickel; liquids; interface; fibers;

D O I：

10.1016/S1359-6462(01)01049-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A MC-γcomposite structure in Mar-M247LC superalloy was obtained by directional solidification. The microstructure of directional solidification was found to change, as solidification progressed. The change was observed in the composition of liquid which increased due to the segregation of elements. The eutectic solidification with a planar solid/liquid interface was obtained at a low withdrawl rate of 0.5 milliμ/s.

引用

页码：503 / 508

页数：6

共 11 条

[1]

Bhambri A. K., 1975, Metallurgical Transactions B (Process Metallurgy), V6B, P523, DOI 10.1007/BF02913844

[2] CARBIDE REINFORCEMENT IN 2 DIRECTIONALLY SOLIDIFIED ALLOYED NICKEL EUTECTIC ALLOYS [J].

BUCHANAN, ER ;

TARSHIS, LA .

METALLURGICAL TRANSACTIONS, 1973, 4 (08) :1895-1904

[3] MC carbide formation in directionally solidified MAR-M247 LC superalloy [J].

Chen, J ;

Lee, JH ;

Jo, CY ;

Choe, SJ ;

Lee, YT .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 247 (1-2) :113-125

[4]

CODKCROFT SL, 1996, J HIGH TEMP MAT P, V15, P173

[5] EFFECT OF SOLIDIFICATION PARAMETERS ON GROWTH GEOMETRY OF MC CARBIDE IN IN-100 DENDRITIC MONO-CRYSTALS [J].

FERNANDEZ, R ;

LECOMTE, JC ;

KATTAMIS, TZ .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1978, 9 (10) :1381-1386

[6]

GELL M, 1968, T METALL SOC AIME, V242, P1869

[7]

JO CY, 1996, THESIS PUSAN NAT U K

[8]

KOTVAL PS, 1972, METALL TRANS, V3, P453

[9] CONTROLLED EUTECTICS [J].

KRAFT, RW .

JOURNAL OF METALS, 1966, 18 (02) :192-&

[10] EFFECT OF SOLIDIFICATION CONDITIONS ON MC CARBIDES IN A NICKEL-BASE SUPERALLOY IN 738-LC [J].

LIU, L ;

SOMMER, F ;

FU, HZ .

SCRIPTA METALLURGICA ET MATERIALIA, 1994, 30 (05) :587-591

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