Scientifically Based Choice of Heat-Resistant Cast Aluminum Alloys of New Generation

2013 ◽  
Vol 372 ◽  
pp. 49-53 ◽  
Author(s):  
Aliya Amenova ◽  
Nikolay Belov ◽  
Dauletkhan Smagulov ◽  
Ainagul Toleuova
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Heat Resistance ◽  
Phase Analysis ◽  
Base Alloy ◽  
Cast Aluminum ◽  
Heat Resistant ◽  
Cast Aluminum Alloys ◽  
New Generation

The phase composition of the AlNiMnFeSiZr system is analyzed as applied to heat resistant nikalines (aluminum alloys of a new generation based on Ni containing eutectic), which are strengthened by the Al3Zr (L12) nanoparticles. It is shown that the presence of iron and silicon considerably complicates the phase analysis when compared with the AN4Mts2 base alloy. Silicon strongly widens the crystallization range, which increases the tendency of the alloy to form hot cracks during casting. It is shown that economically doped nikaline AN2ZhMts substantially exceeds the most heat resistant cast aluminum alloys of the AM5 grade in the totality of its main characteristics (heat resistance and mechanical and production properties).

Optimization of the Compositions of the High Strength Casting Aluminium Alloys Based on Nickel Eutectic

2014 ◽  
Vol 911 ◽  
pp. 152-157 ◽  
Author(s):  
Aliya Amenova ◽  
Dauletkhan Smagulov
Keyword(s):  
Phase Composition ◽  
Aluminum Alloys ◽  
Aluminium Alloys ◽  
Silicon Content ◽  
Base Alloy ◽  
High Strength ◽  
Complex Shapes ◽  
Thin Walled ◽  
Casting Aluminum ◽  
New Generation

The phase composition of the AlNiMnFeSiZr system was analyzed with respect to new-generation heat resistant casting aluminum alloys based on a Ni-containing eutectic, which are strengthened by the Al3Zr (L12) nanoparticles. It is shown that the presence of iron and silicon considerably complicates the phase analysis compared with the AlNiMnFe base alloy. Alloys with low silicon content have a sufficiently good casting property, which enables fabrication of thin-walled castings, not inferior to AA356 alloy types widely used to cast complex shapes. Addition of silicon to the AlNiMnFe base alloy sharply deteriorates hot cracks. Silicon greatly decreases the solubility of Zr at (Al), which is reflected on hot brittleness of Al2%Ni1%Mn0,5%Fe-0,2%Zr system alloys.

Possibilities to Apply Friction Stir Processing FSP in Surface Engineering

2021 ◽  
Vol 890 ◽  
pp. 56-65
Author(s):  
Cristian Ciucă ◽  
Lia Nicoleta Boțilă ◽  
Radu Cojocaru ◽  
Ion Aurel Perianu
Keyword(s):  
Aluminum Alloys ◽  
Friction Stir Processing ◽  
Surface Engineering ◽  
Copper Alloys ◽  
Welding Process ◽  
Industrial Applications ◽  
Process Conditions ◽  
Cast Aluminum ◽  
Friction Stir ◽  
Cast Aluminum Alloys

The results obtained by ISIM Timisoara to the development of the friction stir welding process (FSW) have supported the extension of the researches on some derived processes, including friction stir processing (FSP). The experimental programs (the researches) were developed within complex research projects, aspects regarding the principle of the process, modalities and techniques of application, experiments for specific applications, being approached. The paper presents good results obtained by friction stir processing of cast aluminum alloys and copper alloys. The optimal process conditions, optimal characteristics of the processing tools were defined. The complex characterization of the processed areas was done, the advantages of the process applying being presented, especially for the cast aluminum alloys: EN AW 4047, EN AW 5083 and EN AW 7021. The characteristics of the processed areas are compared with those of the base materials. The results obtained are a solid basis for substantiating of some specific industrial applications, especially in the automotive, aeronautical / aerospace fields.

Friction Stir Welding of Dissimilar A319 and A413 Cast Aluminum Alloys

2014 ◽  
Vol 39 (8) ◽  
pp. 6363-6373 ◽  
Author(s):  
A. Karam ◽  
T. S. Mahmoud ◽  
H. M. Zakaria ◽  
T. A. Khalifa
Keyword(s):  
Friction Stir Welding ◽  
Aluminum Alloys ◽  
Cast Aluminum ◽  
Friction Stir ◽  
Cast Aluminum Alloys
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