Optimizing the tensile properties of Al–Si–Cu–Mg 319-type alloys: Role of solution heat treatment

2014 ◽  
Vol 58 ◽  
pp. 426-438 ◽  
Author(s):  
Y. Han ◽  
A.M. Samuel ◽  
H.W. Doty ◽  
S. Valtierra ◽  
F.H. Samuel
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Solution Heat Treatment

The Simultaneous Effect of Extrusion Ratio and Solution Heat Treatment on the Microstructure and Tensile Properties of Extruded Al-15%Mg2Si- 1.0%Gd Composite

2020 ◽  
Vol 1010 ◽  
pp. 166-171
Author(s):  
Hamidreza Ghandvar ◽  
Wan Famin Faiz ◽  
Tuty Asma Abu Bakar ◽  
Mohd Hasbullah Idris
Keyword(s):  
Heat Treatment ◽  
Ductile Fracture ◽  
Tensile Properties ◽  
Solution Heat Treatment ◽  
Extrusion Ratio ◽  
Treatment Processes ◽  
Heat Treated ◽  
Size And Morphology ◽  
Surface Examination ◽  
Strength And Ductility

The effect of extrusion ratios and solution heat treatment on microstructure and tensile properties of extruded Al-15%Mg2Si-1.0%Gd composite was investigated. The as-cast composite was hot extruded using three different dies and solution heat treated. After conducting heat treatment on extruded samples, microstructure alteration was examined using scanning electron microscope (SEM). Furthermore, mechanical properties of the composites were studied with tensile test. The results demonstrated that extruded and heat treated composite possesses higher strength and ductility compared to as-extruded composites. It was also found that the extrusion and heat treatment processes altered the morphology of primary Mg2Si particles as well as reduction in their size especially when the extrusion ratio increases. Fracture surface examination revealed a transition from ductile fracture in as-extruded samples to more ductile fracture in extruded and heat treated ones. This can be attributed to the change in size and morphology of primary Mg2Si particles as well as fragmentation of Gd intermetallic compounds.

scholarly journals Effect of Sr-P Interaction on the Microstructure and Tensile Properties of A413.0 Type Alloys

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
A. M. Samuel ◽  
H. W. Doty ◽  
S. Valtierra ◽  
F. H. Samuel
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Solution Heat Treatment ◽  
Eutectic Silicon ◽  
Low Magnesium ◽  
The Third ◽  
Wide Range ◽  
Eutectic Si ◽  
Second Peak ◽  
Silicon Particles

The present study was performed on low magnesium A413.0 type alloys. The results show that strontium (Sr) is mainly concentrated in the silicon particles. Overmodification occurs when Sr precipitates in the form of Al2SrSi2, which takes place over a wide range of temperatures. The first peak occurs following the precipitation ofα-Al, the second peak is merged with the precipitation of eutectic silicon (Si), and the third peak is a posteutectic reaction. Introduction of phosphorus (P) to Sr-modified alloys leads to the formation of (Al,P,Sr)2O5compound, which reduces the modification effectiveness of Sr. Therefore, in the presence of P, the amount of added Sr should exceed 200 ppm. For the same levels of P, the tensile parameters of well modified alloys (233 ppm Sr) are relatively higher than those partially modified with Sr (about 60 ppm Sr) containing the same amount of P. During solution heat treatment, coarsening of the eutectic Si particles occurs by the growth of some particles at the expense of the dissolution of the smaller ones, as well as by the collision of nearby particles.

Precipitation of Al3(Sc,Zr) particles in an Al–Zn–Mg–Cu–Sc–Zr alloy during conventional solution heat treatment and its effect on tensile properties

2008 ◽  
Vol 56 (15) ◽  
pp. 3723-3738 ◽  
Author(s):  
O.N. Senkov ◽  
M.R. Shagiev ◽  
S.V. Senkova ◽  
D.B. Miracle
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Solution Heat Treatment ◽  
Conventional Solution ◽  
Zr Alloy

scholarly journals Influence of T6 Solution Heat Treatment and Intermetallic Particles Addition on the Hardness and Tensile Properties of Al-Si (A413) Alloys

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1071-1074
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Solution Heat Treatment ◽  
Treatment Process ◽  
Micro Hardness ◽  
Hardness Tester ◽  
Hot Air ◽  
Intermetallic Particles ◽  
Heat Treated ◽  
Temperature Time

This paper reflects on the influence of T6 solution heat treatment on A413 and its alloys. Heat treatment carried out at a particular temperature, time and methods are to bring changes in mechanical properties of the material. T6 solution heat treatment performed by heating the specimens at 525 0C for a period of 8 hours and then quenched in water at 65 0C is considered followed by artificial aging is done at 155 0C for 8 hours in hot air oven. Vickers micro-hardness tester used is to determine the hardness of specimen and UTM-2T was used to determine the tensile properties of the specimen. From the above investigation it is observed that the hardness of the A413 has significantly improved with T6 heat treatment process and also found that the tensile properties of the A413 improved when heat treated of the specimen.

Role of Elemental Sublimation during Solution Heat Treatment of Ni-Based Superalloys

2013 ◽  
Vol 44 (10) ◽  
pp. 4764-4773 ◽  
Author(s):  
N. D’Souza ◽  
S. Simmonds ◽  
G. D. West ◽  
H. B. Dong
Keyword(s):  
Heat Treatment ◽  
Solution Heat Treatment

Influence of solution heat treatment on microstructure and tensile properties of Inconel 718 formed by high-deposition-rate laser metal deposition

2018 ◽  
Vol 740 ◽  
pp. 389-399 ◽  
Author(s):  
Shang Sui ◽  
Chongliang Zhong ◽  
Jing Chen ◽  
Andres Gasser ◽  
Weidong Huang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Tensile Properties ◽  
Deposition Rate ◽  
Inconel 718 ◽  
Solution Heat Treatment ◽  
Metal Deposition ◽  
High Deposition Rate ◽  
Laser Metal Deposition

Effect of Solution Heat Treatment and Additives on the Microstructure of Al – Si (A413.1) Automotive Alloys

2004 ◽  
Vol 467-470 ◽  
pp. 399-406 ◽  
Author(s):  
M.A. Moustafa ◽  
F.H. Samuel ◽  
H.W. Doty
Keyword(s):  
Heat Treatment ◽  
Solution Heat Treatment ◽  
Treatment Time ◽  
Microstructural Analysis ◽  
Solution Treatment ◽  
Microstructural Characteristics ◽  
Unmodified Alloy ◽  
Heat Treated ◽  
Cast Condition

A study was carried out to determine the role of additives such as Mg and Cu on the microstructural characteristics of grain refined, Sr-modified eutectic A413.1 alloy (Al-11.7% Si) during solution heat treatment. For comparison purposes, some of the alloys were also studied in the non-modified condition. The alloys were cast in a steel permanent mold preheated at 425 °C that provided a microstructure with an average dendrite arm spacing (DAS) of ~ 22 µm. Castings were solution heat treated at 500 ± 2 °C for time up 24 h, followed by quenching in warm water (at 60 °C). Microstructural analysis of the as-cast and heat-treated castings was carried out using optical microscopy in conjunction with image analysis. Phase identifications were done using the electron probe microanalysis (EPMA) technique. In the as-cast condition, the addition of 0.42 wt% Mg to the unmodified alloy produced relatively large Si particles compared to the base A413.1 alloy. The Si particle size remained more or less the same with increase in solution treatment time and Mg level. Both Mg2Si and Al2Cu phases were observed to dissolve almost completely after 8 h solution time, while the Al5Cu2Mg8Si6 phase was found to persist even after 24 h.

The role of solution heat treatment on corrosion and mechanical behaviour of Mg–Zn biodegradable alloys

2016 ◽  
Vol 55 (1) ◽  
pp. 53-64 ◽  
Author(s):  
A. Fereidouni Lotfabadi ◽  
H. R. Bakhsheshi-Rad ◽  
M. H. Idris ◽  
E. Hamzah ◽  
M. Kasiri-Asgarani
Keyword(s):  
Heat Treatment ◽  
Mechanical Behaviour ◽  
Solution Heat Treatment
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