Ordering and Disordering in Alloys PDF
Preview Ordering and Disordering in Alloys
ORDERING AND DISORDERING IN ALLOYS Proceedings of the European Workshop on Ordering and Disordering held in Grenoble, France, 10th-12th July, 1991. Members of the International Scientific Committee H. Bakker, Natuurkundig Lab., University of Amsterdam, The Netherlands M. C. Cadeville, IPCMS, Strasbourg, France R. W. Cahn, University of Cambridge, UK M. T. Clavaguera-Mora, Universitat Autonoma de Barcelona, Spain P. Desre, Institut National Poly technique de Grenoble, France A. M. Ektessabi, Kyoto University, Japan H. Fecht, Universitat Augsburg, Gennany B. Fultz, California Institute of Technology, USA G. Inden, Max-Planck Institut, Dusseldorf, Gennany C. C. Koch, North Carolina State University, USA G. Martin, CENS Gif-sur-Yvette, France H. Mori, Osaka University, Japan A. R. Yavari, CNRS et l'Institut National Poly technique de Grenoble, France Members of the Organizing Committee D. Abert, INPG, Grenoble M. D. Baro, Universitat Autonoma de Barcelona, Spain S. Gialanella, University of Cambridge, UK A. Motta, Centre d'Etude Nucleaire de Grenoble, France A. R. Yavari Chairman, CNRS et l'Inst. National Poly technique de Grenoble Executive Assistant v. Repellin, Grenoble, France ORDERING AND DISORDERING IN ALLOYS Edited by A.R. YAVARI Amorphous and Microcrystalline Materials Research Group, Institut National Polyt echnique de Grenoble, Saint Martin d' Heres, France. ELSEVIER APPLIED SCIENCE LONDON and NEW YORK ELSEVIER SCIENCE PUBLISHERS LTD sm, Crown House, Unton Road, Barking, Essex IGll England Sole Distributor in the USA and Canada ELSEVIER SCIENCE PUBLISHING CO., INC. 655 Avenue of the Americas. New York, NY 10010, USA WITH 34 TABLES AND 277 ILLUSTRATIONS © 1992 ELSEVIER SCIENCE PUBLISHERS LTD (except pp.223-228. 372-384) British Library Cataloguing in Publication Data Ordering and disordering in alloys. I. Yavari. A. R. 669 ISBN 1-85166-762-8 Library of Congress CIP data applied for No responsibility is assumed by the Publisher for any injury and/or damage to persons or property as a matter of products liability. negligence or otherwise. or from any use of operation of any methods. products, instructions or ideas contained in the material herein. Special regulations for readers in the USA This publication has been registered with the. Copyright Clearance Center Inc. (CCC). Salem. Massachusetts. Information can be obtained from the CCC about conditions under which photocopies of parts of this publication may be made in the USA. All other copyright questions. including photocopying outside the USA, should be referred to the publisher. All rights reserved. No part of this publication may be reproduced. stored in a retrieval system, or transmitted in any form or by any means. electronic. mechanical. photocopying, recording. or otherwise. without the prior written permission of the publisher. v PREFACE This conference was initially programmed in the framework of the European Science/Twinning project entitled 'Ordering Kinetics in Alloys (1989-92)' with the aim of promoting scientific debate on the mechanisms and kinetics of disordering and ordering in alloys with superlattices. Special attention was reserved for metastable states obtained by heavy deformation, radiation damage or rapid quenching. In this perspective disordering and ordering phenomena are distinct from those of the equilibrium order-disorder transitions. Nevertheless we welcomed contri butions on equilibrium phase transitions which help develop a better understanding of metastable states. Some authors concentrated on short-range (SRO) ordering and disordering as distinct from long-range-ordering (LRO) while still others considered conditions of destruction of LRO down to the onset of amorphisation. These contributions resulted in a broader and more interdisciplinary debate and the presentation of the latest experimental findings and theoretical models. This proceedings volume is organized in two parts. Part I concentrates on disordering and ordering in LI2 and other cubic superlattice alloys while Part II covers the other mentioned areas. We wish to acknowledge substantial financial support from the European Community and partial support from the Centre National de la Recherche Scien tifiq ue. A. R. YAVARI vii CONTENTS Preface . ........................................................ v Part I Mechanisms and kinetics in ordering and disordering . . . . . . . . . . . . . . . . . . . . . . . .. 3 R.W. Cahn Magnetic properties of disordered Ll2-Ni3Al+Fe ........................... 12 A.R. Yavari, P. Crespo, E. Pulido, A. Hernando, G. Fillion, P. Lethuillier, MD. Baro and S. Surinach Kinetic disordering of intermetallic compounds through flrst- and second-order transitions by rapid solidiflcation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 23 fA. West and M.J. Aziz Kinetic states of order in highly nonequilibrium materials . . . . . . . . . . . . . . . . . . . .. 31 B. Fultz Resistivity variations during ordering and disordering ....................... 43 W. Pfeiler Calorimetric study of reordering of disordered Ll2,Ni3AI based alloys ............ 55 MD. Baro, f. Malagelada, S. Surinach, N. Clavaguera and M.T. Clavaguera-Mora Order parameter and lattice parameter of Ll2 ordered alloys, with special reference to Ni3AI-based alloys .............................................. 67 S. Gialanella, SR. Newcomb and R.W. Cahn Ordering kinetics in superalloy type intermetallic compounds in relation with diffusion mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 79 M.e. Cadeville, V. Pierron-Bohnes and R. Kozubski Phase transformation and order-disorder in Al-Li observed by high resolution microscopy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 95 G. Schmitz and P. Haasen viii Structural instabilities associated with phase transitions and an electron microscopy study. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 107 G. Van Tendeloo, D. Schryvers and L.E. Tanner Electron microscopy investigation of wetting phenomena in Uz alloys . . . . . . . . . .. 114 Ch. Ricolleau, A. Loiseau, F. Ducastelle Long-range ordering kinetics in Ni3AI-based alloys with various ordering energies .. 122 R. Kozubski, 1. Soltys, M.C. Cadeville, V. Pierron-Bohnes, T H. Kim, P. Schwander, IP. Hahn and G. Kostorz Equilibrium and kinetics of thermal ordering or disordering in Ni3AI . . . . . . . . . . .. 130 C. Dimitrov, T. Tarfa and O. Dimitrov Investigation of deformation induced disorder and re-ordering by subsequent annealing in Ni3AI+B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 138 1. Ball, R. Mitteau and G. Gottstein Disordering by plastic deformation of short-range and long-range ordered Ni-based alloys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 146 M. Viltange and O. Dimitrov Defect recombination phenomena in melt-spun ordered alloys of the Fe-AI system .. 155 F. Marino, S. Gialanella and R. Delorenzo Ordering and disordering in CuPt-alloys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 164 B. Urban-Erbil and W. Pjeiler Stochastic description of ordering in driven compounds ..................... 172 P. Bellon and G. Martin Thermodynamical properties of antiphases in fcc ordered alloys ............... 182 A. Finel CVM treatment of order-disorder transformations ......................... 194 C. Colinet and G. lnden A Monte Carlo study of the antiphase free energy in fcc ordering transitions ...... 196 F. Livet Interface stability in driven compounds ................................ 207 F. Soisson, P. Bellon and G. Martin Monte Carlo study of the phase stability of ordered fcc phases under irradiation. . .. 215 F. Haider LMTO/CVM calculations of partial BCC based phase relations in the system Ni-AI-Ti . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 223 B.P. Bunon, W.C. Caner and A. Pasturel ix Statistical thermodynamics of ordering systems: an improved quasi-chemical approximation .......................... . . . . . . . . . . . .. 229 P. Cavallotti, M. Albeni, B. Bozzini, A. Iudica, L. Nobili and P. Ossi Martensitic phase transition in systems with frozen atomic order . . . . . . . . . . . . . .. 239 A. Planes, E. Vives and T. Castan An isothermal calorimetric study of the ordering process in quenched ~-Cu-Zn-AI alloy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 247 A. Planes, J. Elgueta and J L. Macqueron Part II Mechanisms of radiation induced amorphization 255 A.T. Motta and C. Lemaignan Electron-irradiation-induced crystalline-to-amorphous transition in metallic and non-metallic compounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 277 H. Mori and H. Fujita Disordering and amorphization of Zr3AI by 3.8 MeV Zf3+ion bombardment ....... 287 F.C. Chen, DF. Pedraza and AJ. Ardell Disordering induced by very high energy heavy oins in metallic compounds . . . . . .. 295 A. Barbu, A. Dunlop, D. Lesueur and G. Jaskierowicz Stability of crystals against melting and vitrification 300 HJ. Fecht On the amorphisation of NiGe alloys by mechanical alloying ................. 317 T. Benameur, AR. Yavari, J. Malagelada and MD. Baro Prediction of metastable alloy formation and phase transformations induced by ion bombardment in binary metal systems .............................. 328 LJ. Gallego, JA. Somoza, HM. Fernandez and JA. Alonso Investigation of order-disorder in non-crystalline binaries using diffraction methods.. 336 S. Steeb and P. Lamparter Direct imaging using scanning tunnelling microscopy of the atomic structure in amorphous C01.xPx ............................................... 348 J.M. Gonzalez, F. Cebollada, M Vazquez, M. Aguilar, M. Pancorbo and E. Anguiano Computer simulation of glass formation in two dimensional networks ........... 356 F. Montoya and J.-M. Dubois x Crystallization and structural transfolUlations in CoZrz studied by hydrogen-induced internal friction ................................................. 364 H.R. Sinning and N. Matz Energetics and statistics of order in alloys with application to oxide superconductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 372 D. de Fontaine, G. Ceder, M. Asta and R. McCormack Characterization of the mechanical disordering process in the Y-Ba-Cu-O system ... 385 M. Simoneau, F. Lavallee and G. L' Esperance Grain growth and gold tracer diffusion in thin ftlms of nanocrystalline Fe and Fe9sZrs ....................................................... 394 J. Bottiger, N. Karpe and K. Kyllesbech Larsen Mossbauer study of mechanically alloyed powders 402 S. Nasu and P.R. Shingu Mechanical alloying of immiscible elements .. . . . . . . . . . . . . . . . . . . . . . . . . . .. 414 A.R. Yavari and P.J. Desre Amorphization induced by ball-milling in some pure elements: Si, Ge ........... 423 E. Gaffet, F. Faudot and M. Harmelin The effect of concentration gradients on the stability of amorphous layers of ternary alloys .................................................. 434 L. Bouanha, P J. Desre, P. Hicter and AR. Yavari ThelUlodynamic aspects of amorphization and defolUlation in Cu-Ti-TiHz mixtures .. 446 M. Baricco, L. Battezzatti, G. Cocco, I. Soletta and S. Enzo On the energy transfer mechanism in the ball milling powder processing ......... 454 E. Paradiso, A. Iasonna, M. Magini, S. Martelli and F. Padella Mossbauer study of Fe-B and (Fe, Co, Ni)-B ultra-fine amorphous powders prepared by chemical reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 462 J. Saida, M. Ghafari and Y. Nakamura Temperature dependence of the law of approach to magnetic saturation in nonocrystalline ferromagnets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 473 J. Gonzalez, M. Vazquez, E.T. de Lacheisserie and G. Herzer Electronic origin of stability of quasicrystals 483 PM.Ossi Quasicrystals and the concept of interpenetration in m35-approximant crystals with long-range icosahedral atomic clustering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 493 J.L. Verger-Gaugry xi Application of magic strains to predict new ordered phases: a five-fold coordinated crystal structure for silicon ......................................... 506 LL. Boyer, E. Kaxiras, M.J. Mehl, lL. Feldman and 1.Q. Broughton Index of contributors ............................................. 515
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