Application of phase equilibrium analysis in prepartion of Nb-Si based ultra-high temperature alloys

Tai Geng; Chang Rong Li; Cui Ping Guo; Zhen Min Du; Miao Liu; Xin Qing Zhao

Application of phase equilibrium analysis in prepartion of Nb-Si based ultra-high temperature alloys

Tai Geng
, Chang Rong Li^*
, Cui Ping Guo
, Zhen Min Du
, Miao Liu
, Xin Qing Zhao

^*Corresponding author for this work

School of Materials Science and Engineering

University of Science and Technology Beijing
Research Institute for Chemical Defense of China

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

On the basis of phase equilibrium calculation, the solidification paths of Nb-Si-Mo ternary alloys with different compositions were simulated by Scheil-Guilliver model. In the meantime, according to the liquidus projections and phase equilibrium on the Nb-M rich side of the Nb-Si-M (M=Ti, Mo, W, Al, Cr, B, Hf) ternary system, the effects of alloying elements on stability of phase Nb₃Si and the region of the two-phase Nbss+Nb₅Si₃ were analyzed. The calculated results are consistent well with the microstructure observed by experiments, indicating that the phase equilibrium analysis is helpful to composition design, solidification simulation and microstructure control of the Nb-Si-based ultra-high temperature resistent alloys.

Original language	English
Pages (from-to)	157-161
Number of pages	5
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	32
Issue number	2
State	Published - Feb 2011

Keywords

Microstructure control
Nb-Si based superalloy
Phase equilibrium analysis
Solidification simulation

Cite this

@article{9755fd988afa4b5cbb647f6926979c33,

title = "Application of phase equilibrium analysis in prepartion of Nb-Si based ultra-high temperature alloys",

abstract = "On the basis of phase equilibrium calculation, the solidification paths of Nb-Si-Mo ternary alloys with different compositions were simulated by Scheil-Guilliver model. In the meantime, according to the liquidus projections and phase equilibrium on the Nb-M rich side of the Nb-Si-M (M=Ti, Mo, W, Al, Cr, B, Hf) ternary system, the effects of alloying elements on stability of phase Nb3Si and the region of the two-phase Nbss+Nb5Si3 were analyzed. The calculated results are consistent well with the microstructure observed by experiments, indicating that the phase equilibrium analysis is helpful to composition design, solidification simulation and microstructure control of the Nb-Si-based ultra-high temperature resistent alloys.",

keywords = "Microstructure control, Nb-Si based superalloy, Phase equilibrium analysis, Solidification simulation",

author = "Tai Geng and Li, \{Chang Rong\} and Guo, \{Cui Ping\} and Du, \{Zhen Min\} and Miao Liu and Zhao, \{Xin Qing\}",

year = "2011",

month = feb,

language = "英语",

volume = "32",

pages = "157--161",

journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

issn = "1009-6264",

publisher = "Chinese Mechanical Engineering Society",

number = "2",

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TY - JOUR

T1 - Application of phase equilibrium analysis in prepartion of Nb-Si based ultra-high temperature alloys

AU - Geng, Tai

AU - Li, Chang Rong

AU - Guo, Cui Ping

AU - Du, Zhen Min

AU - Liu, Miao

AU - Zhao, Xin Qing

PY - 2011/2

Y1 - 2011/2

N2 - On the basis of phase equilibrium calculation, the solidification paths of Nb-Si-Mo ternary alloys with different compositions were simulated by Scheil-Guilliver model. In the meantime, according to the liquidus projections and phase equilibrium on the Nb-M rich side of the Nb-Si-M (M=Ti, Mo, W, Al, Cr, B, Hf) ternary system, the effects of alloying elements on stability of phase Nb3Si and the region of the two-phase Nbss+Nb5Si3 were analyzed. The calculated results are consistent well with the microstructure observed by experiments, indicating that the phase equilibrium analysis is helpful to composition design, solidification simulation and microstructure control of the Nb-Si-based ultra-high temperature resistent alloys.

AB - On the basis of phase equilibrium calculation, the solidification paths of Nb-Si-Mo ternary alloys with different compositions were simulated by Scheil-Guilliver model. In the meantime, according to the liquidus projections and phase equilibrium on the Nb-M rich side of the Nb-Si-M (M=Ti, Mo, W, Al, Cr, B, Hf) ternary system, the effects of alloying elements on stability of phase Nb3Si and the region of the two-phase Nbss+Nb5Si3 were analyzed. The calculated results are consistent well with the microstructure observed by experiments, indicating that the phase equilibrium analysis is helpful to composition design, solidification simulation and microstructure control of the Nb-Si-based ultra-high temperature resistent alloys.

KW - Microstructure control

KW - Nb-Si based superalloy

KW - Phase equilibrium analysis

KW - Solidification simulation

UR - https://www.scopus.com/pages/publications/79953075603

M3 - 文章

AN - SCOPUS:79953075603

SN - 1009-6264

VL - 32

SP - 157

EP - 161

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 2

ER -

Application of phase equilibrium analysis in prepartion of Nb-Si based ultra-high temperature alloys

Abstract

Keywords

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