THE EFFECT OF MICROSTRUCTURE ON THE DEFORMATION MODES AND MECHANICAL-PROPERTIES OF TI-6AL-2NB-1TA-O.8MO .1. WIDMANSTATTEN STRUCTURES

被引：44

作者：

LIN, FS

STARKE, EA

CHAKRABORTTY, SB

GYSLER, A

机构：

[1] TECH UNIV HAMBURG,DEPT MET,HAMBURG,FED REP GER

[2] UNIV VIRGINIA,DEPT MAT SCI,CHARLOTTESVILLE,VA 22901

[3] NORFOLK GEN HOSP,NORFOLK,VA 23507

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1984年 / 15卷 / 06期

关键词：

TITANIUM METALLOGRAPHY - Microstructures;

D O I：

10.1007/BF02644717

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results show that the Widmanstaetten colony boundaries are major barriers to slip. However, the slip distance can be decreased to a distance equal to the thickness of acicular alpha by transforming the beta phase in the structure to martensite by quenching from 950 degree C. The decrease in slip distance is accompanied by a 25 pct increase in yield strength with no loss in ductility. A large decrease in ductility occurs after excursions above the beta-transus. The development of both equiaxed beta grains during heating in the beta phase field and continuous grain boundary alpha during cooling in the alpha plus beta phase field leads to strain localization along prior beta grain boundaries.

引用

页码：1229 / 1246

页数：18

共 27 条

[1]

AGARWAL SP, 1974, METALL T, V5, P2415

[2] THE ROLE OF ELASTIC INTERACTION STRESSES ON THE ONSET OF PLASTIC-FLOW FOR ORIENTED 2 DUCTILE PHASE STRUCTURES [J].

ANKEM, S ;

MARGOLIN, H .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (06) :963-972

[3]

BLACKBURN MJ, 1966, T ASM, V59, P694

[4] DEFORMATION OF AN ALLOY WITH A LAMELLAR MICROSTRUCTURE - EXPERIMENTAL BEHAVIOR OF INDIVIDUAL WIDMANSTATTEN COLONIES OF AN ALPHA-BETA TITANIUM-ALLOY [J].

CHAN, KS ;

WOJCIK, CC ;

KOSS, DA .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1981, 12 (11) :1899-1907

[5]

Chesnutt JC, 1976, B FRACTOGRAPHY MICRO, V600, P99, DOI 10.1520/STP29194S

[6]

CONRAD H, 1979, TITANIUM TECHNOLOGY, P969

[7]

COX TB, 1976, EFFECT HYDROGEN BEHA, P387

[8] MICROSTRUCTURE AND MECHANICAL-PROPERTIES RELATIONSHIPS IN TI-11 ALLOY AT ROOM AND ELEVATED-TEMPERATURES [J].

EYLON, D ;

HALL, JA ;

PIERCE, CM ;

RUCKLE, DL .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1976, 7 (12) :1817-1826

[9] FACETED FRACTURE IN BETA ANNEALED TITANIUM-ALLOYS [J].

EYLON, D .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1979, 10 (03) :311-317

[10] MECHANISM OF VOID FORMATION, VOID GROWTH, AND TENSILE FRACTURE IN AN ALLOY CONSISTING OF 2 DUCTILE PHASES [J].

GREENFIE.MA ;

MARGOLIN, H .

METALLURGICAL TRANSACTIONS, 1972, 3 (10) :2649-&

← 1 2 3 →