Study of Al-Si alloys grain refinement by inoculation

Sunitha, K.; Gurusami, K.

doi:10.1016/j.matpr.2020.10.684

Cited by 13 publications

(12 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, AlTi 5 B 1 master alloy in rod form containing effective nucleating elements (titanium and boron) was preferred as a grain refiner in the casting process. The primary role of grain refiners in Al-Si alloys is the controlled growth of grain structures by heterogeneous nucleation [9]. According to the grain reduction theory, Titanium is formed TiAl 3 compound in the structure inducing heterogeneous nucleation points in the melt aluminium.…”

Section: Grain Refinement Theorymentioning

confidence: 99%

Investigation of the Effect of Grain Refinement on the Mechanical Properties of 6082 Aluminium Alloy

Izcankurtaran¹,

TUNCA²,

Karatay³

2021

OJAppS

View full text Add to dashboard Cite

In this study, it is aimed to investigate effect of the grain refinement on the mechanical properties of the AA 6082. The micro structure which plays crucial role in determining the mechanical properties of the alloys is varied according to grain size, chemical composition and cooling rate. The prescription was prepared by determining the chemical composition range according to the standard (TSE-EN-573). The casting experiments were performed on the 6082 aluminium alloy which belongs to Al-Mg-Si system with different percentages of grain refinement (AlTi 5 B 1 ) and chemical composition. Heat treatment that is homogenization and artificial aging was applied after casting and extrusion process, respectively. The microstructure analysis and mechanical tests were done on the produced samples in order to understand the structural and mechanical strength of the material. The experimental results showed that using the grain refinements is contributed to increasing the mechanical properties. It was observed that the mechanical strength values increased by 17% after the reduction of the grain size by 69% with the 0.11% addition of the AlTi 5 B 1 master alloy.

show abstract

Section: Grain Refinement Theorymentioning

confidence: 99%

Investigation of the Effect of Grain Refinement on the Mechanical Properties of 6082 Aluminium Alloy

Izcankurtaran¹,

TUNCA²,

Karatay³

2021

OJAppS

View full text Add to dashboard Cite

show abstract

“…The refinement of the grain of aluminum alloys can be achieved by inoculation [ 1 , 2 , 3 ]. Inoculation affects the total number of nuclei and therefore results in a refinement of the structure.…”

Section: Introductionmentioning

confidence: 99%

“…Inoculation is particularly effective for Al-Si alloys with a high proportion of α-solid solution in the structure, that is, Al-Si alloys with a silicon content in the range of 1–12 wt % [ 2 , 5 , 6 , 7 ]. The refinement of the solid solution is carried out by adding the elements titanium and boron, which are added to the melt individually or in combination [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, industrial companies are not interested in the microstructure of inoculant alloys, only their chemical composition and their effect on the grain refinement of the Al-Si alloy [ 8 , 9 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. The primary task of the inoculants added to the Al-Si alloy is to refine the microstructure by heterogeneous nucleation and to control grain growth [ 2 ]. The grain refiners (inoculants) in Al-Si alloys focus on suppressing the formation of coarse columnar grains and support the formation of finer equiaxed grain structures during solidification [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

“…The primary task of the inoculants added to the Al-Si alloy is to refine the microstructure by heterogeneous nucleation and to control grain growth [ 2 ]. The grain refiners (inoculants) in Al-Si alloys focus on suppressing the formation of coarse columnar grains and support the formation of finer equiaxed grain structures during solidification [ 2 ]. An important criterion for the structural description of aluminum alloys is the distance between the secondary dendrite axes, which is known as SDAS (Secondary Dendrite Arm Spacing).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microstructural Characteristics of Al-Ti-B Inoculation Wires and Their Addition to the AlSi7Mg0.3 Alloy

et al. 2022

View full text Add to dashboard Cite

Commercially supplied inoculation wires have a guaranteed chemical composition but not the size and distribution of individual phases, which are very important for nucleation. Therefore, two commercial alloys used for the inoculation of Al-Si alloys (AlTi3B1 and AlTi5B1) are investigated in this paper. The emphasis is placed on their structural analysis and the size and distribution of individual intermetallic phases. Furthermore, the grain refinement effect will be tested by adding these alloys to the AlSi7Mg0.3 alloy and testing the optimal amount of added inoculation wires. The results showed that the size and distribution of the individual phases in AlTi3B1 and AlTi5B1 meet the requirements for the successful inoculation of aluminum alloys, the intermetallic phases based on the TiAl3 phase are fine enough, and there is no agglomeration that would reduce the number of nuclei. This assumption was confirmed by adding these inoculants to the AlSi7Mg0.3 alloy, and it was found that the most ideal amount of inoculants added is 0.01 wt % when the structure was refined by approximately 32%.

show abstract

A Novel In Situ (Al3Ni + Al3Ti)/Al Composite Inoculant and Its Effects on the Microstructure, Damping and Mechanical Properties of Zn–Al Eutectoid Alloy

Zhang

Yin

Jiang³

et al. 2022

Metall Mater Trans A

View full text Add to dashboard Cite

Study of Al-Si alloys grain refinement by inoculation

Cited by 13 publications

References 29 publications

Investigation of the Effect of Grain Refinement on the Mechanical Properties of 6082 Aluminium Alloy

Investigation of the Effect of Grain Refinement on the Mechanical Properties of 6082 Aluminium Alloy

Microstructural Characteristics of Al-Ti-B Inoculation Wires and Their Addition to the AlSi7Mg0.3 Alloy

A Novel In Situ (Al3Ni + Al3Ti)/Al Composite Inoculant and Its Effects on the Microstructure, Damping and Mechanical Properties of Zn–Al Eutectoid Alloy

Contact Info

Product

Resources

About