CHARACTERIZATION OF THE MICROSTRUCTURE IN TIB-WHISKER REINFORCED TI ALLOY MATRIX COMPOSITE

被引：70

作者：

LI, DX

PING, DH

LU, YX

YE, HQ

机构：

[1] Laboratory of Atomic Imaging of Solids, Institute of Metal Research, Academia Sinica, Shenyang, 110015

来源：

MATERIALS LETTERS | 1993年 / 16卷 / 06期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0167-577X(93)90201-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ultrafine structure of the TiB-whisker reinforced Ti alloy matrix composite was studied by means of high-resolution electron microscopy (HREM). The TiB whiskers were embedded in the Ti alloy matrix uniformly. The whiskers were in the form of elongated needles with a roughly hexagonal cross section. The aspect ratio of TiB of about 20 or higher can be achieved after hot extrusion. The TiB whiskers contain a moderate number of stacking faults on the (100)TiB plane. The Ti alloy matrix consists of alpha-Ti and beta-Ti. A superstructure in beta-Ti was determined. Orientation relationships and atomic structure of the TiB/Ti interfaces were studied using HREM. The TiB whiskers bond well to the Ti alloy matrix and the TiB/Ti interfaces are atomically flat, sharp and free from any interfacial phase.

引用

页码：322 / 326

页数：5

共 13 条

[1]

ALEXANDER KB, 1990, MATER RES SOC SYMP P, V183, P273, DOI 10.1557/PROC-183-273

[2] On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium [J].

Burgers, WG .

PHYSICA, 1934, 1 :561-586

[3]

GRAFF MD, 1991, ACTA METALL, V39, P2381

[4] MICROSTRUCTURAL ASSESSMENT OF TI6A14V-TIC METAL MATRIX COMPOSITE [J].

KONITZER, DG ;

LORETTO, MH .

ACTA METALLURGICA, 1989, 37 (02) :397-406

[5] INSITU FORMATION OF 3-DIMENSIONAL TIC REINFORCEMENTS IN TI-TIC COMPOSITES [J].

LIN, Y ;

ZEE, RH ;

CHIN, BA .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (04) :859-865

[6]

LU YX, IN PRESS

[7] TRANSMISSION ELECTRON-MICROSCOPY STUDIES ON THE MICROSTRUCTURE OF A BETA-SI3N4/6061AL COMPOSITE [J].

NING, XG ;

PAN, J ;

HU, KY ;

YE, HQ ;

FUKUNAGA, H .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1992, 11 (09) :558-561

[8] TRANSMISSION ELECTRON-MICROSCOPY STUDY ON MICROSTRUCTURES OF AN AL(LI, CU, MG, ZR)-SICW COMPOSITE .1. STRUCTURAL CHARACTERIZATION OF SIC WHISKERS AND PHASES IN AN AL(LI, CU, MG, ZR)-SICW COMPOSITE [J].

NING, XG ;

XU, HG ;

YE, HQ ;

ZHU, J ;

HU, KY ;

LU, YX ;

BI, J .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1991, 63 (04) :727-746

[9] NON-EQUILIBRIUM PHASE DISTRIBUTION IN AN AL-SIC COMPOSITE [J].

NUTT, SR ;

CARPENTER, RW .

MATERIALS SCIENCE AND ENGINEERING, 1985, 75 (1-2) :169-177

[10] PRECIPITATION OF ALPHA-PHASE IN METASTABLE BETA-PHASE TI ALLOYS [J].

RHODES, CG ;

WILLIAMS, JC .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1975, 6 (11) :2103-2114

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