@inproceedings{dfeb7d5de5b34a60a287d8eb28146266,
title = "Grain Size Effect on Deformation Twinning and De-Twinning in a Nanocrystalline Ni-Fe Alloy",
abstract = "The effect of grain size on the deformation twinning and de-twinning in a nanocrystalline Ni-Fe alloy was investigated using transmission electron microscopy. Specimens with different grain sizes were obtained by severely deforming an electrochemically deposited nanocrystalline Ni-20wt.% Fe alloy using high-pressure torsion, which resulted in continuous grain growth from an average grain size of ∼ 21 nm in the as-deposited material to ∼ 72 nm for the highest strain applied in this study. Results show that deformation de-twinning occurs at very small grain sizes while deformation twinning takes place when the grain size is larger than ∼ 45 nm. The mechanism of the observed grain size effect on twinning and de-twinning is briefly discussed.",
keywords = "De-twinning, Nanocrystalline materials, Ni-Fe alloy, Twinning, De-twinning, Nanocrystalline materials, Ni-Fe alloy, Twinning, De-twinning, Nanocrystalline materials, Ni-Fe alloy, Twinning",
author = "S. Ni and Wang, {Y. B.} and Liao, {X. Z.} and Alhajeri, {S. N.} and Li, {H. Q.} and Ringer, {S. P.} and Langdon, {T. G.} and Zhu, {Y. T.}",
year = "2011",
month = mar,
doi = "10.4028/www.scientific.net/MSF.667-669.181",
language = "English",
isbn = "9783037850077",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd.",
pages = "181--186",
booktitle = "Nanomaterials by Severe Plastic Deformation",
address = "Switzerland",
note = "5th International Conference on Nanomaterials by Severe Plastic Deformation, NanoSPD5 ; Conference date: 21-03-2011 Through 25-03-2011",
}