STRUCTURE CHANGE OF TIAL DURING CREEP IN THE INTERMEDIATE STRESS RANGE

被引：38

作者：

ISHIKAWA, Y ^{[1
]}

OIKAWA, H ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC ENGN,DEPT MAT SCI,SENDAI 98077,JAPAN

来源：

MATERIALS TRANSACTIONS JIM | 1994年 / 35卷 / 05期

关键词：

TITANIUM ALUMINIDE; COMPRESSIVE CREEP; INTERMEDIATE STRESS; HIGH TEMPERATURE; MICROSTRUCTURE; SUBSTRUCTURE;

D O I：

10.2320/matertrans1989.35.336

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Substructures formed during creep of single phase polycrystalline TiAl has been investigated. The structures depend on the stress level which is classified into three ranges according to creep behavior such as the type of creep curves and the stress exponent. Structures also depend drastically on strain in each stress range. In particular, the structure change during creep in the intermediate stress range shows quite characteristic features. Dislocations observed before and after the stage of minimum strain-rate are characterized. The structure change in creep under intermediate stresses is similar to that observed in conventional testing.

引用

页码：336 / 345

页数：10

共 18 条

[1]

Blackburn MJ, 1981, US Patent, Patent No. 4294615

[2]

DONLON WT, 1991, MATER RES SOC S P, V213, P297

[3]

FARENC S, 1993, MAT RES S C, V288, P465

[4] DISLOCATION TRANSFORMATIONS AND THE ANOMALIES OF DEFORMATION CHARACTERISTICS IN TIAL .2. THE STRUCTURE OF DISLOCATION ENSEMBLE - EXPERIMENT AND THEORY [J].

GREENBERG, BA ;

ANTONOVA, OV ;

INDENBAUM, VN ;

KARKINA, LE ;

NOTKIN, AB ;

PONOMAREV, MV ;

SMIRNOV, LV .

ACTA METALLURGICA ET MATERIALIA, 1991, 39 (02) :243-254

[5] DISLOCATION CORE STRUCTURES IN THE ORDERED INTERMETALLIC ALLOY TIAL [J].

HEMKER, KJ ;

VIGUIER, B ;

MILLS, MJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1993, 164 (1-2) :391-394

[6] 3-REGIONS IN THE POWER-LAW CREEP REGIME OF TIAL [J].

ISHIKAWA, Y ;

MARUYAMA, K ;

OIKAWA, H .

MATERIALS TRANSACTIONS JIM, 1992, 33 (12) :1182-1184

[7]

KOO M, 1992, 123RD TAIN KINZ ZAIR, V33, P59

[8]

KOO T, 1989, 123RD TAIN KINZ ZAIR, V30, P307

[9]

LI ZX, 1993, MAT SCI ENG A-STRUCT, V152, P182

[10] DEFORMATION AND FRACTURE OF TIAL AT ELEVATED-TEMPERATURES [J].

LIPSITT, HA ;

SHECHTMAN, D ;

SCHAFRIK, RE .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1975, 6 (11) :1991-1996

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