MICROSTRUCTURAL EVOLUTION AND MECHANICAL-PROPERTIES OF A FORGED GAMMA-TITANIUM ALUMINIDE ALLOY

被引：600

作者：

KIM, YW

机构：

[1] Metcut-Materials Research Group, Wright-Patterson Air Force Base, OH 45433-0511

来源：

ACTA METALLURGICA ET MATERIALIA | 1992年 / 40卷 / 06期

关键词：

421 Strength of Building Materials; Mechanical Properties - 531 Metallurgy and Metallography - 537 Heat Treatment - 541 Aluminum and Alloys - 542 Beryllium; Lithium; Magnesium; Titanium and Other Light Metals and Alloys;

D O I：

10.1016/0956-7151(92)90411-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A two-phase gamma titanium aluminide alloy, Ti-47Al-1Cr-1V-2.5Nb (in at.%), was studied under forged and various subsequent heat treatment conditions, to investigate the microstructural evolution and the effect of microstructure on room temperature (RT) tensile properties and fracture toughness behavior. Four classes of microstructure and three types of lamellar formation were identified, and their formation mechanisms were analyzed using various analytical techniques including metallography, electron optics, differential thermal analysis (DTA), and crystallography. It was found that both tensile and toughness behavior were profoundly affected by the microstructural variations.

引用

页码：1121 / 1134

页数：14

共 26 条

[1] BLACKBURN MJ, 1970, TITANIUM SCI TECHNOL, V3, P633
[2] CHAN KS, 1991, MICROSTRUCTURE / PROPERTY RELATIONSHIPS IN TITANIUM ALUMINIDES AND ALLOYS, P179
[3] CHAN KS, UNPUB METALL T
[4] DOWLING WE, 1991, MICROSTRUCTURE / PROPERTY RELATIONSHIPS IN TITANIUM ALUMINIDES AND ALLOYS, P123
[5] HARTIG C, 1989, 6TH P WORLD MET IN 2, P1021
[6] HUANG SC, 1991, MICROSTRUCTURE / PROPERTY RELATIONSHIPS IN TITANIUM ALUMINIDES AND ALLOYS, P105
[7] PLASTIC-DEFORMATION AND FRACTURE OF BINARY TIAL-BASE ALLOYS
HUANG, SC
HALL, EL
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1991, 22 (02): : 427 - 439
[8] HUG G, IN PRESS P INT S ELE
[9] Johnson L. A., 1991, HIGH TEMPERATURE ORD, V213, P883
[10] Kim Y, UNPUB

← 1 2 3 →