Creep of Slurry Squeeze-Cast ZA-27 Zinc Alloy with Different Solid Fractions at 140 °C

Panpun, Chinnarut; Plookphol, Thawatchai; Janudom, Somjai

doi:10.4028/www.scientific.net/msf.928.194

Cited by 3 publications

(3 citation statements)

References 13 publications

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“…Improvement of mechanical and tribological properties of ZA-27 alloy can also be achieved by reinforcement with various forms of micro and nano-sized particles such as carbides (SiC, TiC) 9,10 , oxides (Al 2 O 3, Zn 2 SiO 4, ZnO) 11,12,13 , and nanographene and graphite particles 14,15 . Another method to improve the alloy's performance, which is denoted by dimensional stability and creep resistance, is through the use of the rheo-casting technique 16,17 . This simple and flexible non-conventional casting method takes the advantage of the wide freezing range of ZA alloy to create a microstructure, which is consisting of degenerated dendrites immersed in a residual liquid and induced greater composition homogeneity 18,19 .…”

Section: Introductionmentioning

confidence: 99%

Study the Effect of New Rheocast on Tribological Behaviour of ZA27

Ghazi

Abass²,

Alali

et al. 2023

Mat. Res.

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This paper investigated how casting affects ASTM ZA-27 alloy's tribological performance in dry and lubricated conditions. To this end, varying contact loads and sliding speeds were applied to tribological tests. The ZA-27 alloy was produced using gravity die casting (GDC) and new rheocasting (NRC) methods. The results showed that the microstructure of GDC ZA-27 alloy is dendritic containing α and η phases. While the NRC alloy microstructure demonstrates a semi-globular structure of fine equiaxed α phase bordered by eutectoid α and η. The NRC alloy achieved an improvement in tensile, hardness, and elongation properties by almost 15%, 20%, and 25%, respectively. Regarding tribological properties, the NRC alloy achieved an enhancement in tribo-behavior by lowering the coefficient of friction (COF) to about 67% than the GDC alloy. Further, the results showed that the wear rate recorded an increment with applied load for both GDC and NRC alloys. Though, the results showed that the wear rate with NRC alloy was lower compared to the GDC alloy with about 84% at 160N normal load. The worn surfaces of NRC alloys were characterized by smooth and shallow wear grooves. While the GDC alloy worn surfaces were rougher and experience deeper grooves and damage.

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Section: Introductionmentioning

confidence: 99%

Study the Effect of New Rheocast on Tribological Behaviour of ZA27

Ghazi

Abass²,

Alali

et al. 2023

Mat. Res.

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“…the matrix material. But in metal matrix composites, the path of mixing is distinct during when compared [2,3].The sole concern of the research is to incorporate the reinforced graphite particles with the Za alloy. It can be easily defined as the production methods involved which are on rising value for lower value density materials along with the increased.…”

mentioning

confidence: 99%

“…It can be easily defined as the production methods involved which are on rising value for lower value density materials along with the increased. MMC's in addition to the particulate reinforcement might result by maximizing the strength in a minimal cost when comparing with the type of continuous reinforcements [2,3]. When comparing with the real world applications,when there is requirement of isotropic properties, the respective type of composites might result in continuous fibre reinforced composites as well as they expand the minimal heat expansion and also it can withstand high thermal conductivity [4].…”

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confidence: 99%

Effect on the Mechanical Properties of Za-27/Graphite Reinforced Composites when Routed Through a Squeeze Casting Process

S¹,

Ramachandran²,

Arvind³

et al. 2019

IJITEE

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Zinc Aluminium Alloy with a presence of the alloy number of 27 is widely being used in the production as well as in the manufacturing of roller bearing and bushes mostly in the auto industry by replacing the bronze made bearings due to its low cost value along with the utmost best performance. And as an add-on, Zinc Aluminium Alloy 27 is a highly strengthened alloy with best metallurgical characters which is somewhat on the high side in the graph when relating it with other types of commonly utilized cast aluminium alloys. The current research work deals purely with increasing the mechanical characteristics of ZA 27 alloy and also to identify the characteristics of the similar alloy when it combines with a metal matrix composites that has been reinforced with the graphite which is purely produced by squeeze casting technique. With respect to this, the reinforced graphite and the Za 27 mixture increases the heat expansion and expands the autonomous lubrication property. The result of this research reveals about the input process parameter increase and then there will be a relevant improvement in its ductile character but with response to the rise in mass of the graphite particles, which will lead to the decrease in the mechanical property such as hardness.

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Review of Design of Process Parameters for Squeeze Casting

Deng,

Xie,

You

et al. 2023

Chin. J. Mech. Eng.

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Squeeze casting (SC) is an advanced net manufacturing process with many advantages for which the quality and properties of the manufactured parts depend strongly on the process parameters. Unfortunately, a universal efficient method for the determination of optimal process parameters is still unavailable. In view of the shortcomings and development needs of the current research methods for the setting of SC process parameters, by consulting and analyzing the recent research literature on SC process parameters and using the CiteSpace literature analysis software, manual reading and statistical analysis, the current state and characteristics of the research methods used for the determination of SC process parameters are summarized. The literature data show that the number of publications in the literature related to the design of SC process parameters generally trends upward albeit with significant fluctuations. Analysis of the research focus shows that both “mechanical properties” and “microstructure” are the two main subjects in the studies of SC process parameters. With regard to materials, aluminum alloys have been extensively studied. Five methods have been used to obtain SC process parameters: Physical experiments, numerical simulation, modeling optimization, formula calculation, and the use of empirical values. Physical experiments are the main research methods. The main methods for designing SC process parameters are divided into three categories: Fully experimental methods, optimization methods that involve modeling based on experimental data, and theoretical calculation methods that involve establishing an analytical formula. The research characteristics and shortcomings of each method were analyzed. Numerical simulations and model-based optimization have become the new required methods. Considering the development needs and data-driven trends of the SC process, suggestions for the development of SC process parameter research have been proposed.

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Creep of Slurry Squeeze-Cast ZA-27 Zinc Alloy with Different Solid Fractions at 140 °C

Cited by 3 publications

References 13 publications

Study the Effect of New Rheocast on Tribological Behaviour of ZA27

Study the Effect of New Rheocast on Tribological Behaviour of ZA27

Effect on the Mechanical Properties of Za-27/Graphite Reinforced Composites when Routed Through a Squeeze Casting Process

Review of Design of Process Parameters for Squeeze Casting

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