The precipitation behavior of δ' phase in Al-Li alloy treated by aging-retrogression-reaging

被引：6

作者：

Chai, ZG ^{[1
]}

Meng, FL

Zou, Q

机构：

[1] Jilin Univ, Inst Mat Sci, Changchun 130023, Peoples R China

[2] Jilin Univ, Machine Coll, Changchun 130024, Peoples R China

[3] Air Force Flying Coll Changchun, Changchun 130021, Peoples R China

来源：

ACTA PHYSICA SINICA | 2001年 / 50卷 / 07期

关键词：

Al-Li alloy; aging-retrogression-reaging; transition interfacial layer;

D O I：

10.7498/aps.50.1401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Small-angle X-ray scattering has been used to study the precipitation behavior of the delta ' phase in an Al-2.70mass% Li alloy treated by aging-retrogression-reaging. The results show that a transitional interfacial layer exists between the 6 ' phase and the matrix in 8h reaging, but the transitional interfacial layer disappears in 16h reaging. This suggests that the delta ' phase particles are coarsened by "licking up" the transition interfacial layer before 16h reaging and swallow up each other after 16h reaging.

引用

页码：1401 / 1404

页数：4

共 13 条

[1]

[Anonymous], 1955, SMALL ANGLE SCATTERI

[2]

CAHN JW, 1968, T METALL SOC AIME, V242, P166

[3] The interface between δ′ and matrix in an 8090 Al-Li alloy studies by SAXS [J].

Chai, ZG ;

Xu, Y ;

Meng, FL .

MATERIALS CHARACTERIZATION, 1999, 42 (01) :27-30

[4] Small-angle X-ray scattering study of the interfacial characteristics between δ′ phase and matrix in Al-2.70 mass% Li alloy [J].

Chai, ZG ;

Meng, CF .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1998, 31 :7-9

[5]

Cina B, 1974, Patent No. 3856584

[6] DETERMINATION OF DIFFUSE-BOUNDARY THICKNESSES OF POLYMERS BY SMALL-ANGLE X-RAY-SCATTERING [J].

KOBERSTEIN, JT ;

MORRA, B ;

STEIN, RS .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1980, 13 (FEB) :34-45

[7] A SAXS STUDY ON MICROSTRUCTURAL CHANGES IN AL-ZN-MG ALLOY DURING RETROGRESSION AND REAGING [J].

MENG, C ;

WANG, Y .

SCRIPTA METALLURGICA ET MATERIALIA, 1990, 24 (08) :1521-1524

[8] A study of the mechanism of hardness change of Al-Zn-Mg alloy during retrogression reaging treatments by small angle X-ray scattering (SAXS) [J].

Meng, CF ;

Long, HW ;

Zheng, Y .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1997, 28 (10) :2067-2071

[9] The determination of the interfacial characteristics between δ′ phase and matrix in 1420 alloy by SAXS [J].

Meng, FL ;

Chai, ZG ;

Wang, YM .

JOURNAL OF MATERIALS SCIENCE LETTERS, 2000, 19 (20) :1837-1838

[10]

Noble B., 1971, Metal Science Journal, V5, P114

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