Three-dimensional analysis of proeutectoid cementite precipitates

被引：140

作者：

Kral, MV ^{[1
]}

Spanos, G ^{[1
]}

机构：

[1] USN, Res Lab, Phys Met Branch, Washington, DC 20375 USA

来源：

ACTA MATERIALIA | 1999年 / 47卷 / 02期

关键词：

D O I：

10.1016/S1359-6454(98)00321-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Serial sectioning and computer-aided visualization of three-dimensional reconstructions were used to reveal the three-dimensional morphology, connectivity and distribution of proeutectoid cementite precipitates in a model Fe-1.34% C-13.0% Mn alloy. Only dendritic grain boundary precipitates and Widmanstatten precipitate morphologies were observed in the present alloy. Unlike earlier morphological studies of similar alloys, intragranular precipitates were not observed. Scanning and transmission electron microscopy of deeply etched specimens corroborated and augmented these results. Three-dimensional analysis has also made possible the first quantitative three-dimensional measurements of cementite precipitates and yielded a more precise classification of cementite precipitates than was possible with classical two-dimensional techniques. (C) 1999 Published by Elsevier Science Ltd on behalf of Acta Metallurgica Inc. All rights reserved.

引用

页码：711 / 724

页数：14

共 37 条

[1] GROWTH OF GRAIN BOUNDARY PRECIPITATES IN A1-4 PERCENT CU BY INTERFACIAL DIFFUSION [J].

AARON, HB ;

AARONSON, HI .

ACTA METALLURGICA, 1968, 16 (06) :789-&

[2]

Aaronson H.I., 1956, MECH PHASE TRANSFORM, V18, P47

[3] SYMPATHETIC NUCLEATION - AN OVERVIEW [J].

AARONSON, HI ;

SPANOS, G ;

MASAMURA, RA ;

VARDIMAN, RG ;

MOON, DW ;

MENON, ESK ;

HALL, MG .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1995, 32 (03) :107-123

[4]

AARONSON HI, 1956, T AM I MIN MET ENG, V206, P1216

[5]

[Anonymous], REV METALL

[6] CONTAINERLESS PROCESSING AND RAPID SOLIDIFICATION OF NB-SI ALLOYS OF HYPEREUTECTIC COMPOSITION [J].

BERTERO, GA ;

HOFMEISTER, WH ;

ROBINSON, MB ;

BAYUZICK, RJ .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (11) :2723-2732

[7] STEREOLOGY OF GRAIN-BOUNDARY ALLOTRIOMORPHS [J].

BRADLEY, JR ;

AARONSON, HI .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1977, 8 (02) :317-322

[8]

BURKE MG, 1995, 7 INT S ENV DEGR MAT

[9]

Cowley S. A., 1988, Phase Transformations '87. Proceedings of the Conference, P459

[10] QUANTITATIVE SERIAL SECTIONING ANALYSIS - PREVIEW [J].

DEHOFF, RT .

JOURNAL OF MICROSCOPY-OXFORD, 1983, 131 (SEP) :259-263

← 1 2 3 4 →