Homogenizing a Nickel-Based Superalloy: Thermodynamic and Kinetic Simulation and Experimental Results

被引：62

作者：

Jablonski, Paul D. ^{[1
]}

Cowen, Christopher J. ^{[1
,2
]}

机构：

[1] US DOE, Natl Energy Technol Lab, Albany, OR 97321 USA

[2] Parsons Corp, South Pk, PA 15129 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2009年 / 40卷 / 02期

关键词：

Interdendritic Region; Chemical Segregation; Homogenization Heat Treatment; Nonequilibrium Solidification; Scheil Simulation;

D O I：

10.1007/s11663-009-9227-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

If the chemical inhomogeneity profile is known a priori, kinetic modeling software such as diffusion-controlled transformations (DICTRA) can be used to model the homogenization kinetics of an alloy. In this study, the Scheil module within the Thermo-Calc software was used to predict the as-cast segregation present within the Ni-based superalloy Nimonic 105. The segregation profiles were read into DICTRA to refine the homogenization heat treatment of this alloy. The thermodynamic and kinetic modeling of the computationally predicted heat treatment and microstructure, and subsequent experimental verification on a real casting of Nimonic 105, are presented.

引用

页码：182 / 186

页数：5

共 13 条

[1]

Collier J.P., 1988, SUPERALLOYS, V1988, P43

[2]

COUTS WH, 1987, SUPERALLOYS, V2, P449

[3]

Gulliver GH, 1913, J I MET, V9, P120

[4] Influence of solid/liquid interfaces on the microstructure and stress-rupture life of the single-crystal nickel-base superalloy NASAIR 100 [J].

Guo, XP ;

Fu, HZ ;

Sun, JH .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1997, 28 (04) :997-1009

[5] Microsegregation behavior during solidification and homogenization of AerMet100 steel [J].

Lippard, HE ;

Campbell, CE ;

Bjorklind, T ;

Borggren, U ;

Kellgren, P ;

Dravid, VP ;

Olson, GB .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 1998, 29 (01) :205-210

[6]

LOEWENKAMP SA, 1988, SUPERALLOYS 1988, P53

[7]

ROSS EW, 1987, SUPERALLOYS, V2, P122

[8]

*ROYAL I TECHN, 2007, DICTRA VERS 23

[9]

*ROYAL I TECHN, 2007, THERM VERS R

[10]

*ROYAL I TECHN, 2007, MOB DAT

← 1 2 →