Models for the Porosity Growth and Dissolution in Single-Crystal Nickel-Base Superalloys

被引：2

作者：

Bokstein, B. S. ^{[1
]}

Esin, V. A. ^{[1
]}

Rodin, A. O. ^{[1
]}

Svetlov, I. L. ^{[2
]}

机构：

[1] Moscow Steel & Alloys Inst, Moscow 119049, Russia

[2] Russian Inst Aviat Mat, Moscow 105005, Russia

来源：

DIFFUSION IN SOLIDS AND LIQUIDS V, PTS 1 AND 2 | 2010年 / 297-301卷

关键词：

Nickel alloys; segregation; diffusion; porosity;

D O I：

10.4028/www.scientific.net/DDF.297-301.187

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

During the solidification and the homogenization of single-crystal nickel-base superalloys, pores form which lead to the degradation of the mechanical properties, especially the fatigue lifetime. Hot Isostatic Pressing (HIP) is used for the pores dissolution. In this paper, analytical models for the formation of the homogenization pores and their dissolution during the HIP are developed. The results are compared with experimental data.

引用

页码：187 / +

页数：2

共 17 条

[1] POROSITY DISTRIBUTION AND GROWTH DURING HOMOGENIZATION IN SINGLE-CRYSTALS OF A NICKEL-BASE SUPERALLOY [J].

ANTON, DL ;

GIAMEI, AF .

MATERIALS SCIENCE AND ENGINEERING, 1985, 76 (1-2) :173-180

[2]

Bardeen J., 1951, Atom Movements, P87

[3]

BOKSTEIN B, 2007, J FUNC MAT, V5, P162

[4] Model for the porosity growth in single-crystal nickel-base superalloys during homogenization [J].

Bokstein, B. S. ;

Epishin, A. I. ;

Link, T. ;

Esin, V. A. ;

Rodin, A. O. ;

Svedov, I. L. .

SCRIPTA MATERIALIA, 2007, 57 (09) :801-804

[5]

Ennis P.J., 2002, MAT ADV POWER ENG, P217

[6]

FULLAGAR K, 1994, 39 ASME IGTI INT GAS, P1

[7]

Geguzin Ya. E., 1979, Diffusion Zone

[8]

GOLOVANOV V, 2005, P 2005 INT C HOT IS, P19

[9]

GRIGORIEV I, 1991, PHYS PROPERTIES HDB

[10] THEORY OF DIFFUSION-LIMITED PRECIPITATION [J].

HAM, FS .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1958, 6 (04) :335-351

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