Simulation of γ′ Precipitation Kinetics in a Commercial Ni-Base Superalloy

被引：0
|
作者：
M. G. Fahrmann
D. A. Metzler
机构：
[1] Haynes International Inc.,
来源：
JOM | 2016年 / 68卷
关键词：
Interfacial Energy; Continuous Cool; Slow Cool Rate; Lower Aging Temperature; Nucleation Burst;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The ability to accurately simulate the precipitation kinetics of γ′ and other strengthening phases in Ni-base superalloys is of great interest to industry. Several commercial simulation tools such as TC-PRISMA (Thermo-Calc, Sweden) and PanPrecipitation (Computherm, USA) have been made available in recent years. This paper reports the outcome of a validation study on wrought Ni-base superalloy HAYNES® 282® alloy for two scenarios of commercial interest: (1) the precipitation of γ′ during continuous cooling, and (2) the precipitation of γ′ during two-step aging. The simulation results are validated against experimental data. Any discrepancies are discussed in the context of the uncertainty in key material properties (such as interfacial energies), model assumptions, and experimental errors.
引用
收藏
页码：2786 / 2792
页数：6
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