Influence of ion irradiation on phase transformation behaviour of quenched Ti-48Al-2Nb alloy during aging

被引：2

作者：

Melikhov, VD ^{[1
]}

Romankov, SE ^{[1
]}

Volkova, TV ^{[1
]}

Orozbaev, RO ^{[1
]}

机构：

[1] Inst Phys & Technol, Almaty 480082 82, Kazakhstan

来源：

CRYSTAL ENGINEERING | 2002年 / 5卷 / 3-4期

关键词：

phase transitions; intermetallics compound; heat treatments; ion implantation; X-ray diffraction;

D O I：

10.1016/S1463-0184(02)00032-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Titanium aluminides based on gamma-TiAl are potential materials for high temperature aerospace application. The mechanical properties of these alloys are very sensitive to microstructure. Influence of ion irradiation on phase transformation behavior of quenched Ti-48Al-2Nb alloy during aging at 650 and 800 degreesC has been studied by X-ray diffraction. The quenched samples were irradiated by 60 keV Ti+ ions. Next, the recovery of microstructure during aging at 650 and 800 degreesC has been studied. It is revealed that the preliminary irradiation of quenched samples greatly affects the dynamics of phase transformations during aging. It is established that the speed of the phase transformations in preliminary irradiated and non irradiated samples is different. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：217 / 225

页数：9

共 16 条

[1] Resulting morphologies on quenching of titanium aluminide alloys [J].

Azevedo, CRF ;

Flower, HM .

MATERIALS SCIENCE AND TECHNOLOGY, 1999, 15 (05) :510-517

[2] Phase equilibria and transformations in titanium aluminides [J].

Flower, HM ;

Christodoulou, J .

MATERIALS SCIENCE AND TECHNOLOGY, 1999, 15 (01) :45-52

[3]

FROES FH, 1992, J MATER SCI, V27, P351

[4] Processing-property-microstructure relationships in TiAl-based alloys [J].

D. Hu ;

A. Godfrey ;

P. A. Blenkinsop ;

M. H. Loretto .

Metallurgical and Materials Transactions A, 1998, 29 (3) :919-925

[5] THERMODYNAMIC CALCULATION OF THE TERNARY TI-AL-NB SYSTEM [J].

KATTNER, UR ;

BOETTINGER, WJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1992, 152 (1-2) :9-17

[6]

KIM YW, 1994, JOM-J MIN MET MAT S, V46, P30, DOI 10.1007/BF03220745

[7]

KIM YW, 1991, JOM, V8, P40

[8] Microstructure evolution through the α→γ phase transformation in a Ti-48 at pct Al alloy [J].

Kumagai, T ;

Abe, E ;

Nakamura, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (01) :19-26

[9] Development of ultrafine lamellar structures in two-phase γ-TiAl alloys [J].

Maziasz, PJ ;

Liu, CT .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (01) :105-117

[10] PRELIMINARY DESIGN OF A SOLID PARTICULATE COOLED BLANKET FOR THE STEADY-STATE TOKAMAK REACTOR (SSTR) [J].

MORI, S ;

MIURA, H ;

YAMAZAKI, S ;

SUZUKI, T ;

SEKI, Y ;

KUNUGI, T ;

NISHIO, S ;

FUJISAWA, N ;

HISHINUMA, A ;

KIKUCHI, M ;

SHIMIZU, A .

FUSION TECHNOLOGY, 1992, 21 (03) :1744-1748

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