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Title: Neutron diffraction study of the structure and low-temperature phase transformation in ternary NiAl+M (M = Ni, Fe, Co) alloys

Abstract

Neutron diffraction was used to study the structure of ternary NiAl + M (M = Ni, Fe, Cc) alloys. The experiment confirmed the predictions by first-principle calculations on site preference by solute atoms. Moreover, a universal structural transformation was observed below 20 K in alloys where Al is partially replaced by M. The extra peaks at low-temperatures do not match those from known martensite phases, but are well indexed by a cubic structure. A possible mechanism for the low-temperature phase is discussed. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [1]
  1. ORNL
  2. Argonne National Laboratory (ANL)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
931906
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Scripta Materialia; Journal Volume: 56; Journal Issue: 10
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; NICKEL ALLOYS; ALUMINIUM ALLOYS; IRON ALLOYS; COBALT ALLOYS; NEUTRON DIFFRACTION; PHASE TRANSFORMATIONS

Citation Formats

Yang, Ling, Wang, Xun-Li, Liu, Chain T, Fernandez-Baca, Jaime A, Fu, Chong Long, Richardson, James W, and Shi, Detang. Neutron diffraction study of the structure and low-temperature phase transformation in ternary NiAl+M (M = Ni, Fe, Co) alloys. United States: N. p., 2007. Web. doi:10.1016/j.scriptamat.2006.12.043.
Yang, Ling, Wang, Xun-Li, Liu, Chain T, Fernandez-Baca, Jaime A, Fu, Chong Long, Richardson, James W, & Shi, Detang. Neutron diffraction study of the structure and low-temperature phase transformation in ternary NiAl+M (M = Ni, Fe, Co) alloys. United States. doi:10.1016/j.scriptamat.2006.12.043.
Yang, Ling, Wang, Xun-Li, Liu, Chain T, Fernandez-Baca, Jaime A, Fu, Chong Long, Richardson, James W, and Shi, Detang. Tue . "Neutron diffraction study of the structure and low-temperature phase transformation in ternary NiAl+M (M = Ni, Fe, Co) alloys". United States. doi:10.1016/j.scriptamat.2006.12.043.
@article{osti_931906,
title = {Neutron diffraction study of the structure and low-temperature phase transformation in ternary NiAl+M (M = Ni, Fe, Co) alloys},
author = {Yang, Ling and Wang, Xun-Li and Liu, Chain T and Fernandez-Baca, Jaime A and Fu, Chong Long and Richardson, James W and Shi, Detang},
abstractNote = {Neutron diffraction was used to study the structure of ternary NiAl + M (M = Ni, Fe, Cc) alloys. The experiment confirmed the predictions by first-principle calculations on site preference by solute atoms. Moreover, a universal structural transformation was observed below 20 K in alloys where Al is partially replaced by M. The extra peaks at low-temperatures do not match those from known martensite phases, but are well indexed by a cubic structure. A possible mechanism for the low-temperature phase is discussed. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.},
doi = {10.1016/j.scriptamat.2006.12.043},
journal = {Scripta Materialia},
number = 10,
volume = 56,
place = {United States},
year = {Tue May 01 00:00:00 EDT 2007},
month = {Tue May 01 00:00:00 EDT 2007}
}
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