SHORT-RANGE ORDER AND THE DISORDER-ORDER TRANSFORMATION IN STOICHIOMETRIC NI4MO

被引:62
作者
CHEVALIER, JP
STOBBS, WM
机构
[1] UNIV CAMBRIDGE, CAVENDISH LAB, CAMBRIDGE CB3 0HE, ENGLAND
[2] UNIV CAMBRIDGE, DEPT MET & MAT SCI, CAMBRIDGE CB2 3QZ, ENGLAND
来源
ACTA METALLURGICA | 1979年 / 27卷 / 07期
关键词
D O I
10.1016/0001-6160(79)90137-8
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
We describe the results of a systematic study, using electron microscopy, of short range order (SRO) in quenched Ni4Mo. This has confirmed our earlier electron diffraction results [3] on the absence of microdomains in the quenched state. We propose and discuss a model for SRO in this alloy, based on the concept of static concentration waves. The initial stages of the transformation to the ordered structure have been studied for two ageing temperatures (800°C and 750°C) and the ordering has been shown to occur by nucleation and growth of ordered domains in both cases. © 1979.
引用
收藏
页码:1197 / 1217
页数:21
相关论文
共 34 条
[11]   CONTINUOUS TRANSFORMATIONS [J].
COOK, HE .
MATERIALS SCIENCE AND ENGINEERING, 1976, 25 (SEP-O) :127-134
[12]   A MODEL FOR DIFFUSION ON CUBIC LATTICES AND ITS APPLICATION TO EARLY STAGES OF ORDERING [J].
COOK, HE ;
DEFONTAI.D ;
HILLIARD, JE .
ACTA METALLURGICA, 1969, 17 (06) :765-+
[13]   HIGH-RESOLUTION DARK-FIELD ELECTRON-MICROSCOPY .1. USEFUL APPROXIMATIONS [J].
COWLEY, JM .
ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1973, A 29 (SEP1) :529-536
[14]   X-RAY MEASUREMENT OF ORDER IN SINGLE CRYSTALS OF (CU3AU) [J].
COWLEY, JM .
JOURNAL OF APPLIED PHYSICS, 1950, 21 (01) :24-29
[15]   METASTABLE PHASE NI2MO AND INITIAL-STAGES OF ORDERING IN NI-MO ALLOYS [J].
DAS, SK ;
THOMAS, G .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1974, 21 (01) :177-190
[16]   K-SPACE SYMMETRY RULES FOR ORDER-DISORDER REACTIONS [J].
FONTAINE, DD .
ACTA METALLURGICA, 1975, 23 (05) :553-571
[17]  
Gibson J. M., 1977, Developments in Electron Microscopy and Analysis 1977, P275
[18]   The crystal structure of N1(4)Mo [J].
Harker, D .
JOURNAL OF CHEMICAL PHYSICS, 1944, 12 (07) :315-317
[19]   PROBLEM OF SYMMETRY IN STATISTICAL THERMODYNAMICS OF SUBSTITUTIONAL AND INTERSTITIAL ORDERED SOLID-SOLUTIONS [J].
KHACHATURYAN, AG .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1973, 60 (01) :9-37
[20]  
KHACHATURYAN AG, 1974, ORDER DISORDER TRANS, P114