Experimental studies on mechanical properties of Al-7075/TiO 2 metal matrix composite and its tribological behaviour

被引:7
作者
Ahmad, Shadab [1 ,3 ]
Tian, Yebing [1 ,2 ]
Hashmi, Abdul Wahab [1 ,3 ]
Singh, Rajneesh Kumar [4 ]
Iqbal, Faiz [5 ]
Dangi, Sonia [6 ]
Alansari, Abdulkarim [7 ]
Prakash, Chander [8 ,9 ]
Chan, Choon Kit [9 ]
机构
[1] Shandong Univ Technol, Sch Mech Engn, Zibo 255000, Peoples R China
[2] Shandong Key Lab Precis Mfg & Special Proc, Zibo 255000, Peoples R China
[3] Chitkara Univ, Ctr Res Impact & Outcome, Rajpura 140417, Punjab, India
[4] NIMS Univ, Dept Mech & Aerosp Engn, NIET, Jaipur 303121, Rajasthan, India
[5] Univ Lincoln, Sch Engn, Brayford Pool, Lincoln LN6 7TS, England
[6] Punjab Engn Coll, Prod & Ind Engn Dept, Chandigarh 160012, India
[7] Northern Border Univ, Coll Engn, Dept Mech Engn, Ar Ar, Saudi Arabia
[8] Chandigarh Univ, Univ Ctr Res & Dev, Mohali 140413, Punjab, India
[9] INTI Int Univ, Fac Engn & Quant Surveying, Persiaran Perdana BBN Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
来源
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 30卷
基金
中国国家自然科学基金;
关键词
Tribology and wear; Titanium dioxide; Metal matrix composites; Dynamic mechanical analysis; Inclusive innovation; REINFORCED ALUMINUM; RESIDUAL-STRESS; MICROSTRUCTURE; ALLOY; TEMPERATURE;
D O I
10.1016/j.jmrt.2024.05.227
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This study explores the fabrication and characterization of an Al-7075/TiO 2 metal matrix composites (MMCs) through stir casting, varying TiO 2 contents from 2% to 10%. Various tests, including tensile, hardness, and elastic indentation modulus testing, dynamic mechanical analysis, microstructural evaluation, and XRD, were conducted. Tribological analysis involved tribo-pairs of an EN31 disc and a smooth MMCs pin, using a hightemperature Pin -on -disc setup. Microstructural analysis of Al-7075/TiO 2 MMCs revealed uniform TiO 2 distribution, grain refinement, and enhanced mechanical properties, with XRD confirming structural changes. Tensile tests showed improved ultimate force and stress with increasing TiO 2 content, indicating potential for highstrength applications. Hardness assessments demonstrated progressive improvements in Martens, Elastic Indentation, and Vickers Hardness, highlighting the material 's suitability for critical wear and tribology applications. The composites exhibited enhanced damping flexural characteristics, especially with 8% TiO 2 . Maximum and minimum modulus values are reported as 98.9 GPa at 25 degrees C and 77.3 GPa at 350 degrees C for 8% TiO 2 mix MMC. Tribological performance was improved with lower COF values and wear rates. At elevated temperatures, the wear behavior varied with TiO 2 content, influenced by factors such as heat generation and localized welding.
引用
收藏
页码:8539 / 8552
页数:14
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