Properties of mechanically alloyed Al75-xTi25Crx

被引：4

作者：

Lee, KY

Ahn, JH

机构：

[1] ANDONG NATL UNIV,DEPT MAT ENGN,ANDONG 760749,SOUTH KOREA

[2] SAMDO POWDER CO,R&D LAB,GYUNGNAM 626860,SOUTH KOREA

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 229卷 / 1-2期

关键词：

nanocrystalline alloys; intermetallic compounds; mechanical alloying;

D O I：

10.1016/S0921-5093(97)00007-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Mechanical alloying and hot-consolidation of Al7(5-x)Ti(25)Cr(x) (x = 6, 8, 10, 12, 14) have been investigated to see the alloying effect of Cr on the phase changes and the properties of AI(3)Ti. Mechanical alloying resulted in the formation of a metastable f.c.c. phase. The phase was transformed into L1(2) and second phases during hot-consolidations and subsequent annealing. For the alloy with the composition of x = 6 (Al69Ti25Cr6), the DO22 phase coexisted with these phases. Such alloy exhibited higher strength but lower ductility than the other alloys exempt DO22 structure. Room temperature ductility was markedly improved by subsequent annealing of hot-pressed samples. A good combination of mechanical strength and ductility was observed for the alloys with the composition of x = 8-14 (Al75-xTi25Crx). (C) 1997 Elsevier Science S.A.

引用

页码：63 / 67

页数：5

共 10 条

[1] AHN JH, 1993, PROCESSING AND FABRICATION OF ADVANCED MATERIALS FOR HIGH TEMPERATURE APPLICATIONS II, P33
[2] Lee KY, 1996, J MATER SCI LETT, V15, P1324, DOI 10.1007/BF00240795
[3] FORMATION OF STRUCTURAL L12 COMPOUNDS IN THE TERNARY AL-TI-CR SYSTEM
MABUCHI, H
HIRUKAWA, K
TSUDA, H
NAKAYAMA, Y
[J]. SCRIPTA METALLURGICA ET MATERIALIA, 1990, 24 (03): : 505 - 508
[4] MUNROE RR, 1988, MET MATER, V7, P435
[5] OBSERVATIONS ON THE SYSTEMATIC ALLOYING OF AL3TI WITH 4TH PERIOD ELEMENTS TO YIELD CUBIC PHASES
NIC, JP
ZHANG, S
MIKKOLA, DE
[J]. SCRIPTA METALLURGICA ET MATERIALIA, 1990, 24 (06): : 1099 - 1104
[6] MICROSTRUCTURE, DEFORMATION, AND FRACTURE CHARACTERISTICS OF AN AL67PD8TI25 INTERMETALLIC ALLOY
POWERS, WO
WERT, JA
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1990, 21 (01): : 145 - 151
[7] SEIBOLD A, 1981, Z METALLKD, V72, P712
[8] DEFORMATION AND IMPROVEMENT OF DUCTILITY OF THE INTERMETALLIC COMPOUNDS AL3V AND AL3(V,TI)
UMAKOSHI, Y
YAMAGUCHI, M
YAMANE, T
HIRANO, T
[J]. PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1988, 58 (04): : 651 - 665
[9] PLASTIC-DEFORMATION OF THE INTERMETALLIC COMPOUND AL3TI
YAMAGUCHI, M
UMAKOSHI, Y
YAMANE, T
[J]. PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1987, 55 (03): : 301 - 315
[10] NEW CUBIC PHASES FORMED BY ALLOYING AL3TI WITH MN AND CR
ZHANG, S
NIC, JP
MIKKOLA, DE
[J]. SCRIPTA METALLURGICA ET MATERIALIA, 1990, 24 (01): : 57 - 62

← 1 →