scholarly journals Effect of Temperature and Micro structural Evolution of Magnesium and Aluminium Alloy using Vacuum Diffusion Bonding

2019 ◽  
Vol 8 (6S2) ◽  
pp. 603-605
Keyword(s):  
Surface Treatment ◽  
Aluminium Alloy ◽  
Diffusion Bonding ◽  
Structural Evolution ◽  
Effect Of Temperature ◽  
Shear Tests ◽  
Aluminum Composite ◽  
Basic Strategy ◽  
Magnesium Compound ◽  
Set Up

This work is directed to acquire better understanding and portrayal of the dissemination holding of comparable and disparate metals. It additionally meant to get ideal parameters for dispersion holding of aluminum covering over magnesium compound with Aluminum composite. This work targets building up a basic strategy to get dispersion holding joints at moderately not ease. On one hand, the exploration is expected to set up a strategy. This technique is concocted to contemplate the physical wonders that have huge effect on dissemination holding, for example, time, temperature, weight on joints and metallurgical qualities. Elastic and shear tests are to be directed. This work is directed to acquire better understanding and portrayal of the dispersion holding of comparable and unique metals. It likewise intended to ge t ideal parameters for dissemination holding of aluminum covering over magnesium combination with aluminum composite. These two metals are jointed inside the kick the bucket in the wake of completing surface treatment. At that point the bite the dust is kept inside the dispersion holding machine by shifting the time, temperature, weight by methods for burden.

scholarly journals Effect of Mechanical Analysis of Magnesium AZ 80 Alloy and Aluminium 7075 Alloy using Diffusion Bonding

2019 ◽  
Vol 8 (6S2) ◽  
pp. 600-602
Keyword(s):  
Mechanical Properties ◽  
Surface Treatment ◽  
Diffusion Bonding ◽  
Mechanical Analysis ◽  
Aluminum Composite ◽  
Lap Shear ◽  
Microstructure Examination ◽  
7075 Alloy

The vital issue when joining magnesium combination (Mg) and aluminum composite (Al) exists in the presence of development of oxide movies and fragile intermetallic inside the bond district. Be that as it may, dispersion welding is acclimated be a piece of these amalgams while not a great deal of issue. In this examination, an endeavor was made to break down the mechanical properties, for example, lap shear quality, Ram rigidity and microhardness for dispersion holding of AZ80 magnesium (Mg) and AA7075 aluminum (Al) disparate materials. The holding nature of the joints was checked by microstructure examination. This work is directed to get better understanding and portrayal of the dissemination holding of comparative and different metals. It additionally meant to acquire ideal parameters for dispersion holding of aluminum covering over magnesium composite with Aluminum amalgam. This work is led to get better understanding and portrayal of the dispersion holding of comparable and different metals. It additionally intended to get ideal parameters for dispersion holding of aluminum covering over magnesium composite with aluminum amalgam. These two metals are jointed inside the kick the bucket in the wake of completing surface treatment.

Report of the Automobile Research Committee on Contraction of Aluminium Alloy Bearings

1945 ◽  
Vol 40 (2) ◽  
pp. 205-228
Author(s):  
L. Farkas ◽  
H. Ludicke
Keyword(s):  
Aluminium Alloy ◽  
Wall Thickness ◽  
Effect Of Temperature ◽  
Connecting Rod ◽  
Research Committee ◽  
Bearing Material ◽  
Interference Fit ◽  
Set Up ◽  
Bearing Alloy ◽  
And Control

The nature and the causes of contraction of aluminium alloy bearings have been investigated. Previous test results indicated that contraction is due to plastic straining of the bearing material. This is confirmed by calculation of the stresses set up in the bearing alloy, which are caused by the interference fit between bearing and housing and the differential thermal expansion of aluminium alloy and steel. The variables affecting bearing contraction are then considered under the headings:—( a) Strength of material; ( b) interference fit; ( c) bearing wall thickness; ( d) bearing size; ( e) connecting-rod wall thickness. Finally, the effect of temperature upon bearing clearance is considered. The results show that contraction can be prevented by a suitable choice of the bearing material and control of the dimensions. In particular, the interference fit should be kept low, and an alloy should be used which has a relatively high elastic limit in compression. The application of the results may be extended to light alloy bearings in general and for both bush type and split bearings fitted in steel housings.

Microstructure modifications induced by a laser surface treatment in an AA7449 aluminium alloy

2011 ◽  
Vol 528 (6) ◽  
pp. 2736-2747 ◽  
Author(s):  
G. Fribourg ◽  
A. Deschamps ◽  
Y. Bréchet ◽  
G. Mylonas ◽  
G. Labeas ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Aluminium Alloy ◽  
Laser Surface ◽  
Laser Surface Treatment

scholarly journals Effect of Temperature on the Tribological Properties of Selected Thermoplastic Materials Cooperating with Aluminium Alloy

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7318
Author(s):  
Anita Ptak ◽  
Paula Taciak ◽  
Wojciech Wieleba
Keyword(s):  
Aluminium Alloy ◽  
Contact Pressure ◽  
Tribological Properties ◽  
Polymer Materials ◽  
Effect Of Temperature ◽  
Test Results ◽  
Friction Process ◽  
Before And After ◽  
Pin On Disc ◽  
Two Parameters

This article concerns the tribological properties of three selected polymer materials: polyamide PA6, polyethylene PE-HD and polyetheretherketone composite PEEK/BG during sliding against aluminium alloy EN AW-2017A in the presence of hydraulic oil HLP 68. The tests were carried out under contact pressure p of 3.5–11 MPa at ambient temperature T ranging from −20 °C to +20 °C. The dependence of kinetic friction coefficient μk on the two parameters was determined through tribological tests carried out using a pin-on-disc tribometer. A five-level central composite rotatable design (CCRD) was adopted for the experiment. All the test results were statistically analysed. The microhardness of the surface of the polymeric material was measured before and after the friction process. The surface was also examined under SEM. Temperature and contact pressure have been found to have a significant effect on the tribological properties of the tested sliding pairs. Relative to the applied friction conditions, the surfaces after friction showed rather heavy signs of wear.

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