scholarly journals INFLUENCE OF HEAT TREATMENT ON MICROSTRUCTURAL EVOLUTION AND MECHANICAL CHARACTERISTICS OF AA6061 ALUMINUM ALLOY / TERMINIO APDOROJIMO ĮTAKA ALIUMINIO LYDINIO AA6061 MIKROSTRUKTŪRAI IR MECHANINĖMS SAVYBĖMS

2019 ◽  
Vol 11 (0) ◽  
pp. 1-5
Author(s):  
Hanae Chabba ◽  
Irmantas Gedzevičius ◽  
Valentinas Varnauskas ◽  
Driss Dafir ◽  
Fouzi Belmir
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Electrical Resistivity ◽  
Aluminum Alloy ◽  
Solution Heat Treatment ◽  
Room Temperature ◽  
Mechanical Characteristics ◽  
Micro Hardness ◽  
Treatment Conditions ◽  
Experimental Parameters

This study aims to understand the influence of heat treatment on behavior of AA6061 aluminum alloy at room temperature for various heat treatment. Two experimental parameters for this alloy are defined: micro hardness and the electrical resistivity, as a function of heat treatment at ambient temperature. The results show that the heat treatment conditions have an effective influence in mechanical properties of Al-Mg-Si aluminum alloy. This variation of the mechanical properties is the result of microstructural changes which have been observed using optical microscopy. When the material is subjected to a solution heat treatment followed by quenching and artificial aging, its mechanical properties, especially micro hardness and electrical resistivity, reach their highest levels and become very good compared to the other heat treatment applied to the same alloy.

scholarly journals Effect of heat treatment conditions on mechanical properties of semi-liquid AC4CH aluminum alloy high-pressure castings

2008 ◽  
Vol 58 (8) ◽  
pp. 363-367 ◽  
Author(s):  
Satoru SATO ◽  
Yasunori HARADA ◽  
Hiroto SASAKI ◽  
Naoki ISHIBASHI ◽  
Mitsuru ADACHI
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Pressure ◽  
Aluminum Alloy ◽  
Treatment Conditions

scholarly journals Effect of Artificial Aging, Delayed Aging, and Pre-Aging on Microstructure and Properties of 6082 Aluminum Alloy

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 173 ◽  
Author(s):  
Xin He ◽  
Qinglin Pan ◽  
Hang Li ◽  
Zhiqi Huang ◽  
Shuhui Liu ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Solution Heat Treatment ◽  
Room Temperature ◽  
Artificial Aging ◽  
Experimental Results ◽  
Negative Effects ◽  
Short Term ◽  
6082 Aluminum Alloy

Three different aging treatments including single-aging, delayed-aging, and pre-aging were carried out on 6082 extruded profiles after solution heat treatment, then their hardness, tensile strength, and microstructure were tested. The experimental results reveal that the properties and microstructure changes during single-aging. Based on this, the negative effects of room temperature delay and the results of short-term pre-aging treatments used in the experiment to improve this phenomenon have been concluded.

Microstructures and Mechanical Properties of Ti-48Al-2Cr-2Nb-xW

2007 ◽  
Vol 561-565 ◽  
pp. 481-486 ◽  
Author(s):  
Dong Yi Seo ◽  
S. Bulmer ◽  
H. Saari ◽  
Peter Au
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Base Composition ◽  
Solution Heat Treatment ◽  
Room Temperature ◽  
Controlled Cooling ◽  
Microstructures And Mechanical Properties ◽  
Fully Lamellar ◽  
Hardness Values ◽  
Lamellar Interfaces

The microstructures and mechanical properties of three powder metallurgy Ti-48Al-2Cr- 2Nb-xW alloys (where x=0, 0.5, and 1 atomic percent (at.%)) are presented. The results indicate that a solution heat treatment combined with controlled cooling generate a fully lamellar (FL) microstructure without the formation of detrimental Widmanstätten or massively transformed γ phases. Aging causes coarsening of the FL microstructure in the alloys containing 0%W and 0.5%W, while almost no coarsening occurs in the 1%W sample. The addition of W to the base composition results in the formation of precipitates at the lamellar interfaces and grain boundaries during aging which helps stabilize the FL microstructure. The amount of W and the aging time affect the room temperature hardness values and tensile properties.

Optimizing Solution Heat Treatment to Improve Mechanical Properties of Al Alloy 7055

2007 ◽  
Vol 546-549 ◽  
pp. 877-880 ◽  
Author(s):  
J.H. You ◽  
Sheng Dan Liu ◽  
Z.B. Huang ◽  
Xin Ming Zhang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Aluminum Alloy ◽  
High Temperature ◽  
Solution Heat Treatment ◽  
Al Alloy ◽  
Two Stage ◽  
Second Stage ◽  
Long Duration ◽  
Increasing Temperature

The influence of one- and two- stage solution heat treatment on the microstructure and mechanical properties of aluminum alloy 7055 was investigated. The results showed that in the case of one-stage solution heat treatment in the range of 450 °C to 470 °C, the strength increased while the ductility decreased with temperature. Further increasing temperature led to more dissolution of soluble constituents but a large amount of recrystallization, therefore, the strength decreased while ductility increased. The two-stage solution heat treatment, which included first stage of low-temperature-long-duration and second stage of high-temperature-short-duration heating was suggested for improvement of mechanical properties.

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