Modeling of Ni-Cr-Mo based alloys: Part II - Kinetics

被引：39
|
作者：
Turchi, P. E. A.
Kaufman, L.
Liu, Zi-Kui
机构：
[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA
[2] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16803 USA
来源：
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2007年 / 31卷 / 02期
基金：
美国国家科学基金会;
关键词：
CALPHAD; DICTRA; diffusion; kinetic modeling; Ni-Cr-Mo; phase transformations; TTT diagrams;
D O I：
10.1016/j.calphad.2006.12.006
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The CALPHAD approach is applied to kinetic studies of phase transformations and to aging of prototypes of Ni-Cr-Mo-based alloys selected for waste disposal canisters in the Yucca Mountain Project (YMP). Based on a previous study on alloy stability for several candidate alloys, the thermodynamic driving forces, together with a newly developed mobility database, have been used to analyze diffusion-controlled transformations in these Ni-based alloys. Results on precipitation of the Ni2Cr-ordered phase in Ni-Cr and Ni-Cr-Mo alloys, and of the complex P and sigma phases in a surrogate of Alloy 22 are presented, and the output from the modeling are compared with experimental data on aging. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：237 / 248
页数：12
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