HIGH-TEMPERATURE DEFORMATION AND GRAIN-GROWTH IN FINE-GRAINED ZIRCONIA

被引：22

作者：

YOSHIZAWA, YI

SAKUMA, T

机构：

[1] Department of Materials Science, Faculty of Engineering, The University of Tokyo, Tokyo, 113

来源：

ENGINEERING FRACTURE MECHANICS | 1991年 / 40卷 / 4-5期

关键词：

D O I：

10.1016/0013-7944(91)90243-T

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The effects of grain size on high-temperature deformation and strain-induced grain growth were examined in fine-grained tetragonal zirconia polycrystals (TZP) at 1400-degrees-C. The fine-grained TZP, with a grain size less than about 1-mu-m, were superplastically deformed at this temperature. Superplastic deformation was characterized by the small work hardening during the deformation. A small work hardening in superplastic deformation was principally caused by the stress increase due to grain growth. The grain growth during deformation consisted of the static grain growth and the strain-induced one. The strain-induced grain growth was found to be proportional to strain.

引用

收藏

页码：847 / 854

页数：8

相关论文

共 21 条

[1] LARGE STRAIN BEHAVIOR OF A SUPERPLASTIC COPPER ALLOY .1. DEFORMATION [J].

CACERES, CH ;

WILKINSON, DS .

ACTA METALLURGICA, 1984, 32 (03) :415-422

[2] STRUCTURAL SUPERPLASTICITY IN SINGLE-PHASE CRYSTALLINE CERAMICS [J].

CARRY, C ;

MOCELLIN, A .

CERAMICS INTERNATIONAL, 1987, 13 (02) :89-98

[3] DEFORMATION ENHANCED GRAIN-GROWTH IN A SUPERPLASTIC SN-1PERCENT BI ALLOY [J].

CLARK, MA ;

ALDEN, TH .

ACTA METALLURGICA, 1973, 21 (09) :1195-1206

[4] DIFFUSIONAL CREEP AND KINETIC DEMIXING IN YTTRIA-STABILIZED ZIRCONIA [J].

DIMOS, D ;

KOHLSTEDT, DL .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1987, 70 (08) :531-536

[5] STRUCTURAL AND TOPOLOGICAL STUDY OF SUPERPLASTICITY IN ZIRCONIA POLYCRYSTALS [J].

DUCLOS, R ;

CRAMPON, J ;

AMANA, B .

ACTA METALLURGICA, 1989, 37 (03) :877-883

[6] HIGH-TEMPERATURE PLASTIC-DEFORMATION OF Y2O3-STABILIZED ZRO2 SINGLE-CRYSTALS .1. THE ORIGIN OF THE YIELD DROP AND ASSOCIATED GLIDE POLYGONIZATION [J].

FRIES, E ;

GUIBERTEAU, F ;

DOMINGUEZRODRIGUEZ, A ;

CHEONG, DS ;

HEUER, AH .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1989, 60 (01) :107-121

[7]

HERMANSSON T, 1988, SUPERPLASTICITY SUPE, P631

[8] EFFECT OF A LIQUID-PHASE ON SUPERPLASTICITY OF 2-MOL-PERCENT-Y2O3-STABILIZED TETRAGONAL ZIRCONIA POLYCRYSTALS [J].

HWANG, CMJ ;

CHEN, IW .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1990, 73 (06) :1626-1632

[9] ON THE CONTRIBUTION OF CONCURRENT GRAIN-GROWTH TO STRAIN SENSITIVE FLOW OF A SUPERPLASTIC AL-CU EUTECTIC ALLOY [J].

KASHYAP, BP ;

TANGRI, K .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1987, 18 (03) :417-424

[10]

KELLETT B, 1988, SUPERPLASTICITY SUPE, P625