Structure-dependent sliding and grain boundary engineering for superplasticity

被引：13

作者：

Watanabe, T

机构：

来源：

TOWARDS INNOVATION IN SUPERPLASTICITY I | 1997年 / 233-2卷

关键词：

grain boundary character distribution; grain boundary design and control; grain boundary structure; sliding; intergranular fracture control;

D O I：

10.4028/www.scientific.net/MSF.233-234.375

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bicrystal work on grain boundary sliding has revealed that sliding strongly depends on the type and structure of grain boundary. Strong structural effect on sliding suggests the possibility of grain boundary engineering for higher superplasticity. Some optimal condition may exist for the grain boundary character distribution which defines the type and the frequency of grain boundaries, and for geometrical configuration of the boundaries in polycrystals. The contribution of sliding to deformation and fracture may be compromised. Several important factors which can affect grain boundary deformation and fracture have been discussed in connection with structural transformation and grain boundary connectivity.

引用

页码：375 / 381

页数：7

共 18 条

[11]

THAVEEPRUNGSRIP.V, IN PRES P PROF J WEE

[12]

WATANABE T, 1993, TEXTURE MICROSTRUCT, V20, P195

[13] GRAIN-BOUNDARY DESIGN AND CONTROL FOR HIGH-TEMPERATURE MATERIALS [J].

WATANABE, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1993, 166 (1-2) :11-28

[14] GRAIN-BOUNDARIES IN RAPIDLY SOLIDIFIED AND ANNEALED FE-6.5 MASS-PERCENT SI POLYCRYSTALLINE RIBBONS WITH HIGH DUCTILITY [J].

WATANABE, T ;

FUJII, H ;

OIKAWA, H ;

ARAI, KI .

ACTA METALLURGICA, 1989, 37 (03) :941-952

[15] GRAIN-BOUNDARY SLIDING AND STRESS-CONCENTRATION DURING CREEP [J].

WATANABE, T .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (04) :531-545

[16] THE EFFECT OF A GRAIN-BOUNDARY STRUCTURAL TRANSFORMATION ON SLIDING IN (1010)-TILT ZINC BICRYSTALS [J].

WATANABE, T ;

KIMURA, SI ;

KARASHIMA, S .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1984, 49 (06) :845-864

[17] GRAIN-BOUNDARY STRENGTHENING ASSOCIATED WITH SIGMA=9 NEAR-COINCIDENCE BOUNDARY IN (1010) TWIST ZINC BICRYSTALS AT HIGH-TEMPERATURES [J].

WATANABE, T ;

YAMADA, M ;

KARASHIMA, S .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1991, 63 (05) :1013-1022

[18] ON THE MICROSTRUCTURAL ASPECTS OF THE NONHOMOGENEITY OF SUPERPLASTIC DEFORMATION AT THE LEVEL OF GRAIN GROUPS [J].

ZELIN, MG ;

KRASILNIKOV, NA ;

VALIEV, RZ ;

GRABSKI, MW ;

YANG, HS ;

MUKHERJEE, AK .

ACTA METALLURGICA ET MATERIALIA, 1994, 42 (01) :119-126

← 1 2 →