Modeling of Strain-Induced Precipitation Kinetics and Evolution of Austenite Grains in Nb Microalloyed Steels

Considering the effect of strain and chemical composition onprecipitation behavior, new models for the start and end time of Nb（C,N） precipitation in austenite under the conditions of different temperatures and strains have been investigated for Nb microalloyed steel. The value of n in the precipita...

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Published in:Journal of iron and steel research, international international, 2008-05, Vol.15 (3), p.65-69
Main Authors: ZHOU, Xiao-guang, LIU, Zhen-yu, YUAN, Xiang-qian, WU, Di, WANG, Guo-dong, LIU, Xiang-hua
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Engineering
grain size
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
Physical Chemistry
Processes
start times precipitation
static recrystallization
strain-induced precipitation
再结晶
启动时间
奥氏体
形变感应沉淀
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cited_by cdi_FETCH-LOGICAL-c448t-5a917266a63c626d35bb37a31a1962ff7aea7155fc52af4cfe92db65e38618bb3
cites cdi_FETCH-LOGICAL-c448t-5a917266a63c626d35bb37a31a1962ff7aea7155fc52af4cfe92db65e38618bb3
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container_title Journal of iron and steel research, international
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creator ZHOU, Xiao-guang
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description Considering the effect of strain and chemical composition onprecipitation behavior, new models for the start and end time of Nb（C,N） precipitation in austenite under the conditions of different temperatures and strains have been investigated for Nb microalloyed steel. The value of n in the precipitation kinetic equation has been determined by using the available experimental data in literature, which indicated that n is a constant and independent of temperature. The values of the start and end time of the predicted precipitation are compared with the experimental values. Calculated results are in good agreement with the experimental results. Also, the evolution of austenite grains before ferrite transformation is simulated by taking the effect of precipitation into consideration. The measured austenite grain size is in good agreement with predicted one prior to ferrite transformation.
doi_str_mv 10.1016/S1006-706X(08)60128-4
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source Elsevier:Jisc Collections:Elsevier Read and Publish Agreement 2022-2024:Freedom Collection (Reading list)
subjects Applied and Technical Physics
Engineering
grain size
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
Physical Chemistry
Processes
start times precipitation
static recrystallization
strain-induced precipitation
再结晶
启动时间
奥氏体
形变感应沉淀
title Modeling of Strain-Induced Precipitation Kinetics and Evolution of Austenite Grains in Nb Microalloyed Steels
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