Correlating the microstructure to mechanical properties and wear behavior of an accumulative back extruded Al-Mg2Si in-situ composite

被引：32
作者：
Ebrahimi, M. [1 ]
Zarei-Hanzaki, A. [1 ]
Abedi, H. R. [1 ]
Azimi, M. [2 ]
Mirjavadi, S. S. [3 ]
机构：
[1] Univ Tehran, Coll Engn, Sch Met & Mat Engn, Complex Lab Hot Deformat & Thermomech Proc High P, Tehran, Iran
[2] Sherif Univ Technol, Sch Mech Engn, Coll Engn, Tehran, Iran
[3] Qatar Univ, Mech & Ind Engn Dept, Doha, Qatar
来源：
TRIBOLOGY INTERNATIONAL | 2017年 / 115卷
关键词：
Metal matrix composite; Sever plastic deformation; Thermomechanical processing; Wear properties; SEVERE PLASTIC-DEFORMATION; TENSILE PROPERTIES; ALUMINUM-ALLOY; AL-15-PERCENT-MG2SI COMPOSITE; TRIBOLOGICAL BEHAVIOR; HOT-EXTRUSION; MG ALLOY; EVOLUTION; TEMPERATURE; FRICTION;
D O I：
10.1016/j.triboint.2017.05.034
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present work was conducted to study the effects of microstructural evolutions on the mechanical and wear behavior of an accumulative back extruded aluminum-based in-situ composite. The mechanical fragmentation and thermal disintegration of the primary and secondary Mg2Si particles were found as the main microstructural changes. For that reason, the particle interspacing was decreased, the sharp ends were modified, and the reinforcements were more uniformly distributed. Surprisingly, the wear loss was dramatically decreased in processed materials in comparison to the as-received one. Oxidation and delamination were identified as the dominant wear mechanisms. These were addressed considering the microstructural refinement, and the modification of reinforcing particles with regard to morphology (rod-like, wormy or dot-like), size and distribution.
引用
收藏
页码：199 / 211
页数：13
相关论文
共 58 条
[1]   Wear properties of high pressure torsion processed ultrafine grained Al-7%Si alloy [J].
Abd El Aal, Mohamed Ibrahim ;
Kim, Hyoung Seop .
MATERIALS & DESIGN, 2014, 53 :373-382
[2]   Wear properties of ECAP-processed ultrafine grained Al-Cu alloys [J].
Abd El Aal, Mohamed Ibrahim ;
El Mahallawy, Nahed ;
Shehata, Farouk A. ;
Abd El Hameed, Mohamed ;
Yoon, Eun Yoo ;
Kim, Hyoung Seop .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (16-17) :3726-3732
[3]   Dry sliding tribological behavior and mechanical properties of Al2024-5 wt.%B4C nanocomposite produced by mechanical milling and hot extrusion [J].
Abdollahi, Alireza ;
Alizadeh, Ali ;
Baharvandi, Hamid Reza .
MATERIALS & DESIGN, 2014, 55 :471-481
[4]   Mechanical properties and wear behavior of Al-2 wt.% Cu alloy composites reinforced by B4C nanoparticles and fabricated by mechanical milling and hot extrusion [J].
Alizadeh, A. ;
Taheri-Nassaf, E. .
MATERIALS CHARACTERIZATION, 2012, 67 :119-128
[5]   CONTACT AND RUBBING OF FLAT SURFACES [J].
ARCHARD, JF .
JOURNAL OF APPLIED PHYSICS, 1953, 24 (08) :981-988
[6]   The effect of Zr on the microstructure and tensile properties of hot-extruded Al-Mg2Si composite [J].
Bahrami, A. ;
Razaghian, A. ;
Emamy, M. ;
Khorshidi, R. .
MATERIALS & DESIGN, 2012, 36 :323-330
[7]   Enhanced ductility in an Al-Mg2Si in situ composite processed by ECAP using a modified BC route [J].
Bian, Liping ;
Liang, Wei ;
Xie, Guoyin ;
Zhang, Wenli ;
Xue, Jinbo .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (09) :3463-3467
[8]   Flow localization during severe plastic deformation of AZ81 magnesium alloy: Micro-shear banding phenomenon [J].
Changizian, P. ;
Zarei-Hanzaki, A. ;
Ghambari, M. ;
Imandoust, A. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 582 :8-14
[9]  
Daneshvar F, 2016, MAT SCI ENG B, P1
[10]   Reciprocating wear resistance of Al-SiC nano-composite fabricated by accumulative roll bonding process [J].
Darmiani, E. ;
Danaee, I. ;
Golozar, M. A. ;
Toroghinejad, M. R. ;
Ashrafi, A. ;
Ahmadi, A. .
MATERIALS & DESIGN, 2013, 50 :497-502
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