Diffraction whole-pattern modelling study of anti-phase domains in Cu3Au

被引：35

作者：

Scardi, P ^{[1
]}

Leoni, M ^{[1
]}

机构：

[1] Univ Trent, Dept Mat Engn & Ind Tecnol, I-38050 Trento, Italy

来源：

ACTA MATERIALIA | 2005年 / 53卷 / 19期

关键词：

X-ray line broadening; lattice defects; intermetallic phases; nanocrystalline materials; anti-phase boundaries;

D O I：

10.1016/j.actamat.2005.08.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The theory of diffraction line broadening from anti-phase domains in L1(2) intermetallics is reviewed and incorporated in a whole powder pattern modelling (WPPM) approach. The new analytical procedure was tested on Cu3Au filings before and after a thermal treatment to promote a disorder/order transformation with generation of anti-phase domains. The results confirm a prevalence in the ordered phase of conservative {100} boundaries, even though fractions of different boundaries are also likely to be present. The information provided by the WPPM is completed by the distribution of diffraction domain sizes and by values of average dislocation density and interaction parameters. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：5229 / 5239

页数：11

共 37 条

[31]

Wilkens M, 1970, National Bureau of Standards (US) Special Publication, VII, P1195

[32] REFLEXION OF X-RAYS FROM ANTI-PHASE NUCLEI OF AUCU3 .2. [J].

WILSON, AJC ;

ZSOLDOS, L .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1966, 290 (1423) :508-&

[33] The reflexion of X-rays from the 'anti-phase nuclei' of AuCu3 [J].

Wilson, AJC .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1943, 181 (A987) :0360-0368

[34]

Wyckoff R.W. G., 1948, CRYST STRUCT

[35]

XIAO X, 1997, J MATER RES, V11, P650

[36] DEFORMATION AND FRACTURE OF INTERMETALLICS [J].

YOO, MH ;

SASS, SL ;

FU, CL ;

MILLS, MJ ;

DIMIDUK, DM ;

GEORGE, EP .

ACTA METALLURGICA ET MATERIALIA, 1993, 41 (04) :987-1002

[37]

YOUNG RA, 1993, RIETVELD METHODS

← 1 2 3 4 →