Investigation of nickel metal powder on tribological and mechanical properties of Al-7075 alloy composites for gear materials

2017 ◽  
Vol 60 (5) ◽  
pp. 371-383 ◽  
Author(s):  
Ashiwani Kumar ◽  
Amar Patnaik ◽  
I. K. Bhat
Keyword(s):  
Mechanical Properties ◽  
Metal Powder ◽  
Nickel Metal ◽  
Al 7075 ◽  
7075 Alloy

Microstructural and mechanical properties of Al 7075 alloy processed by Equal Channel Angular Pressing

2012 ◽  
Vol 533 ◽  
pp. 50-54 ◽  
Author(s):  
Subramanian Ramesh Kumar ◽  
Kondaiah Gudimetla ◽  
Perumal Venkatachalam ◽  
Balasubramanian Ravisankar ◽  
Kalidoss Jayasankar
Keyword(s):  
Mechanical Properties ◽  
Equal Channel Angular Pressing ◽  
Angular Pressing ◽  
Al 7075 ◽  
7075 Alloy

scholarly journals Microstructure and mechanical properties of Al 7075 alloy processed by differential speed rolling

2012 ◽  
Vol 56 (2) ◽  
pp. 111 ◽  
Author(s):  
Kristóf Bobor ◽  
Zoltán Hegedűs ◽  
Jenő Gubicza ◽  
István Barkai ◽  
Péter Pekker ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure And Mechanical Properties ◽  
Al 7075 ◽  
Differential Speed Rolling ◽  
7075 Alloy ◽  
Differential Speed

Synthesis and Characterization of Al 7075 Alloy Reinforced with Silicon Carbide and Fly Ash

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
G. Sathishkumar ◽  
S.J. Irudayaraja ◽  
S. Sivaganesan ◽  
M. Thuyavan
Keyword(s):  
Mechanical Properties ◽  
Fly Ash ◽  
Casting Process ◽  
Stir Casting ◽  
Industrial Applications ◽  
Matrix Composites ◽  
Specific Strength ◽  
Al 7075 ◽  
7075 Alloy

Metal matrix composites are of great interest in industrial applications for its light weight with high specific strength, stiffness and heat resistance. The processing of MMCs by stir casting process is an effective way of manufacturing. In this paper the comparison of mechanical properties of Aluminium 7075 as a base metal and varying composition of fly ash by 3 and 6 wt.% SiC and 7% fly ash as reinforcement is carried out. Scanning electron microscope was used to confirm the presence of SiC and fly ash. The composites with 6% SiC was found to have maximum hardness whereas composites of 6% and 5 % fly ash were found to have minimum hardness. The mechanical properties such as wear resistance were studied. From the results, it has been finalized that the addition of 6% SiC was identified to show the least wear rate.

Effect of Al2O3 nanoparticle reinforcement on the mechanical and high-temperature tribological behavior of Al-7075 alloy

2016 ◽  
Vol 231 (7) ◽  
pp. 900-909 ◽  
Author(s):  
Yaping Bai ◽  
Yongchun Guo ◽  
Jianping Li ◽  
Zhong Yang ◽  
Jia Tian
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Wear Resistance ◽  
High Temperature ◽  
Tribological Behavior ◽  
High Temperature Wear ◽  
Al 7075 ◽  
Al2o3 Nanoparticle ◽  
7075 Alloy ◽  
Hot Pressing Sintering

In this paper, Al2O3/7075 composites were prepared by mechanical alloying with subsequent hot-pressing sintering, and the effect of Al2O3 nanoparticle on the mechanical and tribological behavior of 7075 was studied. The mechanical property results showed that the hardness and compressive strength of Al2O3/7075 composites first increased and then decreased with Al2O3 amount increasing, and 5 wt.% Al2O3 addition made the material exhibit excellent comprehensive mechanical properties. The tribological properties also indicated that 5 wt.% Al2O3 nanoparticle significantly improved the high-temperature wear resistance of 7075 alloys. Thus, all the mechanical and tribological results confirmed that the addition of Al2O3 nanoparticle was a better strengthening way for 7075 alloys at high temperatures.

A Comparative Study on Mechanical Properties of Al 7075 Alloy Processed by Rolling at Cryogenic Temperature and Room Temperature

2008 ◽  
Vol 584-586 ◽  
pp. 734-740 ◽  
Author(s):  
Sushanta Kumar Panigrahi ◽  
R. Jayaganthan
Keyword(s):  
Mechanical Properties ◽  
Cryogenic Temperature ◽  
Room Temperature ◽  
Microstructural Characterization ◽  
Liquid Nitrogen Temperature ◽  
Grain Structure ◽  
Ultrafine Grain ◽  
Al Alloy ◽  
Al 7075 ◽  
7075 Alloy

The mechanical properties and microstructural characteristics of a precipitation hardenable Al 7075 alloy subjected to rolling at liquid nitrogen temperature and room temperature are reported in this present work. The Al 7075 alloy was severely rolled at cryogenic temperature and room temperature and its mechanical properties were studied by using tensile tests and hardness. The microstructural characterization of Al 7075 alloy were made using SEM/EBSD, TEM and DSC. The cryorolled Al 7075 alloys have shown improved mechanical properties as compared to the room temperature rolled Al alloy. The cryorolled Al alloy after 90% thickness reduction exhibits ultrafine grain structure as observed from its TEM micrographs. It is observed that the strength and hardness of the cryorolled materials (CR) at different percentage of thickness reductions are higher as compared to the room temperature rolled (RTR) materials at the same strain due to suppression of dynamic recovery and accumulation of higher dislocations density in the CR materials.

scholarly journals Mechanical properties of cold gas spray Cr₃C₂-25(Ni20Cr) coatings

Mechanik ◽  
2019 ◽  
Vol 92 (2) ◽  
pp. 128-130
Author(s):  
Dominika Soboń ◽  
Wojciech Żórawski ◽  
Medard Makrenek
Keyword(s):  
Mechanical Properties ◽  
Process Parameters ◽  
Thermal Spraying ◽  
Modern Method ◽  
Alloy Substrate ◽  
Al 7075 ◽  
Cold Gas Spraying ◽  
7075 Alloy ◽  
Spraying Process ◽  
Cold Gas

The cold gas spraying process is the most modern method of thermal spraying. The article presents the coating produced in this process from Cr3C2-25(Ni20Cr) powder on the Al 7075 alloy substrate. The properties of microstructure and mechanical properties of the deposited coating are also shown. The process parameters of the applied powder allowed to obtain coatings characterized by a consistent microstructure and negligible porosity.

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