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Titolo:
Short range order structures in fcc-based Ni-Mo studied by high resolutiontransmission electron microscopy with image processing
Autore:
Hata, S; Mitate, T; Kuwano, N; Matsumura, S; Shindo, D; Oki, K;
Indirizzi:
Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Dept Appl Sci Elect & Mat, Fukuoka 8168580, Japan Kyushu Univ Fukuoka Japan 8168580 ci Elect & Mat, Fukuoka 8168580, Japan Kyushu Univ, Adv Sci & Technol Ctr Cooperat Res, Fukuoka 8168580, Japan Kyushu Univ Fukuoka Japan 8168580 r Cooperat Res, Fukuoka 8168580, Japan Kyushu Univ, Dept Nucl Engn, Fukuoka 8128581, Japan Kyushu Univ Fukuoka Japan 8128581 Dept Nucl Engn, Fukuoka 8128581, Japan Tohoku Univ, Inst Adv Mat Proc, Sendai, Miyagi 9808577, Japan Tohoku UnivSendai Miyagi Japan 9808577 oc, Sendai, Miyagi 9808577, Japan
Titolo Testata:
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
fascicolo: 1-2, volume: 312, anno: 2001,
pagine: 160 - 167
SICI:
0921-5093(20010815)312:1-2<160:SROSIF>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
MECHANICAL-PROPERTIES; INITIAL-STAGES; NI4MO ALLOY; BEHAVIOR; NI3MO; TRANSFORMATION; NI2MO;
Keywords:
Ni-Mo alloy; short range order; high resolution transmission electron microscopy; Monte Carlo simulation; multi-slice simulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Hata, S Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Dept Appl Sci Elect & Mat, Fukuoka 8168580, Japan Kyushu Univ Fukuoka Japan 8168580 & Mat, Fukuoka 8168580, Japan
Citazione:
S. Hata et al., "Short range order structures in fcc-based Ni-Mo studied by high resolutiontransmission electron microscopy with image processing", MAT SCI E A, 312(1-2), 2001, pp. 160-167

Abstract

Modern high resolution transmission electron microscopy was employed in study of short range order (SRO) in fcc-based Ni-Mo, which is classified as '1 1/2 0 alloy'. Digital processing of high resolution transmission electronmicroscope (HRTEM) images can give information about local atomic arrangements of SRO as well as their projection views. The HRTEM observation with image processing reveals the SRO structures in Ni-Mo depending upon the alloy composition and the heat treatment. Subunit cell clusters of D1(a), D0(22) and Pt2Mo structures are generated in the SRO states of Ni4Mo and Ni3Mo alloys. In the initial SRO states, the number of Pt2Mo type clusters increases with Mo composition while that of D1(a) type decreases. The D1(a), D0(22) and Pt2Mo type clusters increase in number in the early stages of subsequent ordering. The formation of D1(a), D0(22) and Pt2Mo type clusters in theSRO states is rationalized in terms of the similar tendencies in atomic configuration between D1(a), D0(22) and Pt,Mo structures. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 22/01/20 alle ore 22:38:18