Static Displacements and Short-Range Order in Ni-14 at. % Ir Alloy

Author:

Enkhtur Lkhamsuren1,Silonov Valentin2,Gantulga Tsedendorj1,Ragchaa Galbadrakh1,Amartaivan Tsenddavaa1,Odbadrakh Khorgolkhuu3

Affiliation:

1. National University of Mongolia

2. Lomonosov Moscow State University

3. Oak Ridge National laboratory

Abstract

In this paper, we are proposing a novel method to estimate static displacements of atoms caused by size effects in fcc substitutional binary polycrystalline solid solutions. Fourier transforms of static displacements of the atoms on every considered shell were calculated using the equations that include dynamical matrix and Fourier transform of interatomic forces. Short-range order parameters on the first seven shells of Ni-14 at. % Ir alloy have been identified from X-ray diffuse scattering intensity by accounting microscopic static displacements of atoms on a particular shell. Pairwise interatomic potentials on the considered shells and critical temperature of disorder-order phase transition were calculated using values of short-range order parameters.

Publisher

Trans Tech Publications, Ltd.

Subject

Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics

Reference14 articles.

1. N.P. Lyakishev, The phase diagram of binary metallic systems (in Russian), Mashinostroenie. Moscow, (1999).

2. E. Bucher, W.F. Brinkman, J.P. Maita, A.S. Cooper, Properties of the Ni-Ir Alloy System, Phys. Rev. B.1 (1970) 274 -277.

3. T. Abbas, F.A. Khawaja, Local atomic ordering in Nickel based Ir and Rh alloys, Solid State Commun.46 (1984) 641-644.

4. A.A. Katsnelson, V.M. Silonov, T. Abbas, Analysis of the stability of Ni-Ir solid solutions and the effects of atomic ordering (in Russian), Fizika Metallov and Metallovedenie 39 (1985) 372-377.

5. B.E. Warren, B.L. Averbach, B.W. Roberts, Atomic Size Effect in the X-ray Scattering by Alloys, J.Appl.Phys. 22(1951)1493-1946.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3