Microstructures and mechanical properties of in-situ Al3Ti/2024Al composites after solution and subsequent aging treatment

被引：42

作者：

Chen, Gang ^{[1
]}

Jin, Yu ^{[1
]}

Zhang, Hongming ^{[2
]}

Han, Fei ^{[1
]}

Chen, Qiang ^{[3
]}

Xu, Junrui ^{[4
]}

Zhao, Zude ^{[3
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Weihai 264209, Peoples R China

[2] Harbin Inst Technol, Dept Civil Engn, Weihai 264209, Peoples R China

[3] Southwest Technol & Engn Res Inst, Chongqing 400039, Peoples R China

[4] Xiangtan Univ, Sch Mech Engn, Xiangtan 411105, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2018年 / 724卷

关键词：

Al3Ti/Al composites; Aging kinetics; Microstructures; Mechanical properties; CU-MG ALLOY; HEAT-TREATMENT; AL; PRECIPITATION; FABRICATION; PARTICLES; BEHAVIOR;

D O I：

10.1016/j.msea.2018.03.089

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present work, in-situ Al3Ti/2024Al composites with different amount of Al3Ti reinforcements were fabricated by ultrasonic casting method. The effects of solution and subsequent aging treatment on the microstructures and mechanical properties were studied. The results show that solution at 500 degrees C for 6 h is suitable for in-situ A1(3)T1/2024Al composites with mass fractions of reinforcements between 4 wt% and 16 wt%. The aging kinetics of Al3Ti/2024Al composites was promoted by the Al3Ti reinforcements. When the mass fraction of Al3Ti is increased from 0% to 16%, the peak hardness is increased by 20.3%, and the time required to reach the peak hardness is shortened by 66.7%. The microstructures of peak-aged Al3Ti/2024Al composites consist of equiaxed alpha-Al grains and evenly distributed reinforcing particles. As the mass fraction of Al3Ti increasing, the compression and tensile strengths were both increased gradually at the sacrifice of plasticity.

引用

页码：181 / 188

页数：8

共 26 条

[1] WORK HARDENING OF DISPERSION-HARDENED CRYSTALS [J].

ASHBY, MF .

PHILOSOPHICAL MAGAZINE, 1966, 14 (132) :1157-&

[2] DEFORMATION OF PLASTICALLY NON-HOMOGENEOUS MATERIALS [J].

ASHBY, MF .

PHILOSOPHICAL MAGAZINE, 1970, 21 (170) :399-&

[3] Effect of solution time in T6 heat treatment on microstructure and hardness of a directionally solidified Al-Si-Cu alloy [J].

Costa, Thiago A. ;

Dias, Marcelino ;

Gomes, Laercio G. ;

Rocha, Otavio L. ;

Garcia, Amauri .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 683 :485-494

[4]

GOULD D, 1974, PHILOS MAG, V30, P1351

[5] Fabrication of Ti-Al3Ti core-shell structured particle reinforced Al based composite with promising mechanical properties [J].

Guo, Baisong ;

Ni, Song ;

Shen, Rujuan ;

Song, Min .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 639 :269-273

[6] Effect of solution heat treatment on microstructure and damage accumulation in cast Al-Cu alloys [J].

Gutierrez, R. Fernandez ;

Sket, F. ;

Maire, E. ;

Wilde, F. ;

Boller, E. ;

Requena, G. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 697 :341-352

[7] Fabrication, interfacial characterization and mechanical properties of continuous Al2O3 ceramic fiber reinforced Ti/Al3Ti metal-intermetallic laminated (CCFR-MIL) composite [J].

Han, Yuqiang ;

Lin, Chunfa ;

Han, Xiaoxiao ;

Chang, Yunpeng ;

Guo, Chunhuan ;

Jiang, Fengchun .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 688 :338-345

[8] WORK-HARDENING AND RECOVERY OF DISPERSION HARDENED ALLOYS [J].

HUMPHREYS, FJ ;

HIRSCH, PB .

PHILOSOPHICAL MAGAZINE, 1976, 34 (03) :373-390

[9] Ultrafine-grained Al composites reinforced with in-situ Al3Ti filaments [J].

Krizik, Peter ;

Balog, Martin ;

Nosko, Martin ;

Castro Riglos, Maria Victoria ;

Dvorak, Jiri ;

Bajana, Oto .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 657 :6-14

[10] Evaluation of precipitation reaction in 2024 Al-Cu alloy through ultrasonic parameters [J].

Kumaran, S. Muthu .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (12) :4152-4158

← 1 2 3 →