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Title: Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling

Abstract

The evolution of texture, grain size, grain shape, dislocation and twin density has been determined by synchrotron X-ray diffraction and line profile analysis in a nanocrystalline Ni- Fe alloy after cold rolling along different directions related to the initial fiber and the long axis of grains. The texture evolution has been simulated by the Taylor-type relaxed constraints viscoplastic polycrystal model. The simulations were based on the activity of partial dislocations in correlation with the experimental results of dislocation density determination. The concept of stress-induced shear-coupling is supported and strengthened by both the texture simulations and the experimentally determined evolution of the microstructure parameters. Grain-growth and texture evolution are shown to proceed by the shear-coupling mechanism supported by dislocation activity as long as the grain size is not smaller than about 20 nm.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science - Office of Basic Energy Sciences - Scientific User Facilities Division
OSTI Identifier:
1392332
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 47; Journal Issue: 12; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
Dislocation mechanism of grain growth; Texture simulation; X-ray line profile analysis; grain growth; nanocrystalline Ni-Fe alloy; strain-induced shear-coupling

Citation Formats

Li, Li, Ungár, Tamás, Toth, Laszlo S., Skrotzki, Werner, Wang, Yan Dong, Ren, Yang, Choo, Hahn, Fogarassy, Zsolt, Zhou, X. T., and Liaw, Peter K. Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling. United States: N. p., 2016. Web. doi:10.1007/s11661-016-3753-7.
Li, Li, Ungár, Tamás, Toth, Laszlo S., Skrotzki, Werner, Wang, Yan Dong, Ren, Yang, Choo, Hahn, Fogarassy, Zsolt, Zhou, X. T., & Liaw, Peter K. Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling. United States. doi:10.1007/s11661-016-3753-7.
Li, Li, Ungár, Tamás, Toth, Laszlo S., Skrotzki, Werner, Wang, Yan Dong, Ren, Yang, Choo, Hahn, Fogarassy, Zsolt, Zhou, X. T., and Liaw, Peter K. Mon . "Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling". United States. doi:10.1007/s11661-016-3753-7.
@article{osti_1392332,
title = {Shear-Coupled Grain Growth and Texture Development in a Nanocrystalline Ni-Fe Alloy during Cold Rolling},
author = {Li, Li and Ungár, Tamás and Toth, Laszlo S. and Skrotzki, Werner and Wang, Yan Dong and Ren, Yang and Choo, Hahn and Fogarassy, Zsolt and Zhou, X. T. and Liaw, Peter K.},
abstractNote = {The evolution of texture, grain size, grain shape, dislocation and twin density has been determined by synchrotron X-ray diffraction and line profile analysis in a nanocrystalline Ni- Fe alloy after cold rolling along different directions related to the initial fiber and the long axis of grains. The texture evolution has been simulated by the Taylor-type relaxed constraints viscoplastic polycrystal model. The simulations were based on the activity of partial dislocations in correlation with the experimental results of dislocation density determination. The concept of stress-induced shear-coupling is supported and strengthened by both the texture simulations and the experimentally determined evolution of the microstructure parameters. Grain-growth and texture evolution are shown to proceed by the shear-coupling mechanism supported by dislocation activity as long as the grain size is not smaller than about 20 nm.},
doi = {10.1007/s11661-016-3753-7},
journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
issn = {1073-5623},
number = 12,
volume = 47,
place = {United States},
year = {2016},
month = {9}
}

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