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

L. Yang; X. L. Wang; C. T. Liu; J. A. Fernandez-Baca; C. L. Fu; J. W. Richardson; D. Shi

doi:10.1016/j.scriptamat.2006.12.043

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

L. Yang, X. L. Wang, C. T. Liu, J. A. Fernandez-Baca, C. L. Fu, J. W. Richardson, D. Shi

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Abstract

Neutron diffraction was used to study the structure of ternary NiAl + M (M = Ni, Fe, Co) 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.

Original language	English
Pages (from-to)	911-914
Number of pages	4
Journal	Scripta Materialia
Volume	56
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2006.12.043
State	Published - May 2007

Funding

This research was sponsored by Division of Materials Sciences and Engineering, Office of Basic Energy Sciences, US Department of Energy under Contract DE-AC05-00OR22725 with UT-Battelle, LLC. IPNS is operated by the US Department of Energy under Contract W-31-109- ENG-38.

Funders	Funder number
Office of Basic Energy Sciences
US Department of Energy	DE-AC05-00OR22725, W-31-109- ENG-38
Division of Materials Sciences and Engineering

Keywords

Crystal structure
Magnetic structure ordering
Neutron diffraction
Nickel aluminides

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10.1016/j.scriptamat.2006.12.043

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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, Co) 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.",

keywords = "Crystal structure, Magnetic structure ordering, Neutron diffraction, Nickel aluminides",

author = "L. Yang and Wang, {X. L.} and Liu, {C. T.} and Fernandez-Baca, {J. A.} and Fu, {C. L.} and Richardson, {J. W.} and D. Shi",

year = "2007",

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journal = "Scripta Materialia",

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T1 - Neutron diffraction study of the structure and low-temperature phase transformation in ternary NiAl + M (M = Ni, Fe, Co) alloys

AU - Yang, L.

AU - Wang, X. L.

AU - Liu, C. T.

AU - Fernandez-Baca, J. A.

AU - Fu, C. L.

AU - Richardson, J. W.

AU - Shi, D.

PY - 2007/5

Y1 - 2007/5

N2 - Neutron diffraction was used to study the structure of ternary NiAl + M (M = Ni, Fe, Co) 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.

AB - Neutron diffraction was used to study the structure of ternary NiAl + M (M = Ni, Fe, Co) 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.

KW - Crystal structure

KW - Magnetic structure ordering

KW - Neutron diffraction

KW - Nickel aluminides

UR - http://www.scopus.com/inward/record.url?scp=33847644170&partnerID=8YFLogxK

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DO - 10.1016/j.scriptamat.2006.12.043

M3 - Article

AN - SCOPUS:33847644170

SN - 1359-6462

VL - 56

SP - 911

EP - 914

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

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

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Keywords

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