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

P. E.A. Turchi; L. Kaufman; Zi Kui Liu

doi:10.1016/j.calphad.2006.12.006

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

P. E.A. Turchi, L. Kaufman, Zi Kui Liu

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Abstract

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 σ phases in a surrogate of Alloy 22 are presented, and the output from the modeling are compared with experimental data on aging.

Original language	English (US)
Pages (from-to)	237-248
Number of pages	12
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	31
Issue number	2
DOIs	https://doi.org/10.1016/j.calphad.2006.12.006
State	Published - Jun 2007

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Computer Science Applications

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@article{57eda4ac114c4f059f8d800b1077bec6,

title = "Modeling of Ni-Cr-Mo based alloys: Part II - Kinetics",

abstract = "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 σ phases in a surrogate of Alloy 22 are presented, and the output from the modeling are compared with experimental data on aging.",

author = "Turchi, {P. E.A.} and L. Kaufman and Liu, {Zi Kui}",

note = "Funding Information: This work was performed under the auspices of the U. S. Department of Energy by the University of California Lawrence Livermore National Laboratory under Contract W-7405-ENG-48, and supported by the Yucca Mountain Site Characterization Project at LLNL. The authors are grateful to Tien Shen, Don Stevens, Bassem El-Dasher, Sharon Torres, Frank Wong, Joe Farmer, Tammy Summers, Dan McCright, and Martha Kohler for technical discussions and encouragement during the various phases of this work. ZKL would like to acknowledge the partial support from the National Science Foundation under grant DMR-0510180.",

year = "2007",

month = jun,

doi = "10.1016/j.calphad.2006.12.006",

language = "English (US)",

volume = "31",

pages = "237--248",

journal = "Calphad: Computer Coupling of Phase Diagrams and Thermochemistry",

issn = "0364-5916",

publisher = "Elsevier Limited",

number = "2",

}

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T1 - Modeling of Ni-Cr-Mo based alloys

T2 - Part II - Kinetics

AU - Turchi, P. E.A.

AU - Kaufman, L.

AU - Liu, Zi Kui

N1 - Funding Information: This work was performed under the auspices of the U. S. Department of Energy by the University of California Lawrence Livermore National Laboratory under Contract W-7405-ENG-48, and supported by the Yucca Mountain Site Characterization Project at LLNL. The authors are grateful to Tien Shen, Don Stevens, Bassem El-Dasher, Sharon Torres, Frank Wong, Joe Farmer, Tammy Summers, Dan McCright, and Martha Kohler for technical discussions and encouragement during the various phases of this work. ZKL would like to acknowledge the partial support from the National Science Foundation under grant DMR-0510180.

PY - 2007/6

Y1 - 2007/6

N2 - 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 σ phases in a surrogate of Alloy 22 are presented, and the output from the modeling are compared with experimental data on aging.

AB - 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 σ phases in a surrogate of Alloy 22 are presented, and the output from the modeling are compared with experimental data on aging.

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SN - 0364-5916

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JO - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

JF - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

IS - 2

ER -

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

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