Evaluation of the Deformation Behavior of a Semi-solid Hypereutectic Al-Si Alloy Compressed in a Drop-Forge Viscometer

Fukui, Yasuyoshi; Nara, Daisaku; Kumazawa, Noriyoshi

doi:10.1007/s11661-015-2777-8

Cited by 10 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a result, gas entrapment is minimized, and a more compact microstructure is achieved. This finding is supported by previous research (references [31,32]). This study investigates the microstructural characteristics of Al-15Si-4Cu-0.5Mg alloy using HPDC and RDC samples, as presented in Figure 7.…”

Section: Resultssupporting

confidence: 92%

Improving Mechanical Property of Hyper-Eutectic Al-Si Alloys via Regulating the Microstructure by Rheo-Die-Casting

Huo

Chen³

et al. 2023

Metals

View full text Add to dashboard Cite

The microstructure plays a key role in the mechanical properties of hyper-eutectic Al-Si alloys. In this study, we investigate the microstructural evolution of rheo-die-casting (RDC) on the Al-15Si-4Cu-0.5Mg alloy using a mechanical rotational barrel system. Our findings demonstrate that higher rotational speed and pouring temperature reduce the size and roundness of primary Si particles in the semisolid slurry. Additionally, during RDC, the dendritic aluminum matrix and skeletal iron-containing inter metallics are sheared off, leading to a more uniform and dispersed Al2Cu phase. Ultimately, our rheo-diecasting results indicate the formation of a near globular aluminum matrix, fine primary Si particles, and a homogeneous Al2Cu phase, thus highlighting the efficacy of this processing method for improving the microstructure and properties of the Al-15Si-4Cu-0.5Mg alloy. We suggest that these results hold promise for enhancing the quality of aluminum-based alloys in various industrial applications.

show abstract

Section: Resultssupporting

confidence: 92%

Improving Mechanical Property of Hyper-Eutectic Al-Si Alloys via Regulating the Microstructure by Rheo-Die-Casting

Huo

Chen³

et al. 2023

Metals

View full text Add to dashboard Cite

show abstract

“…From −2.75 to −2.5 according to the solid fraction [47] AlSi25 Various T ( • C) 10-3000 1.78 × 10 7 −1.5 [67] It is important to mention that most of the shear exponents are negative values. As mentioned above, this gives strange physical results.…”

Section: Steady State Condition: Time-independent Propertiesmentioning

confidence: 99%

Rheological Characterization of Semi-Solid Metals: A Review

Modigell

Pola

Tocci

2018

Metals

View full text Add to dashboard Cite

In the present review, the main findings on the rheological characterization of semi-solid metals (SSM) are presented. Experimental results are a fundamental basis for the development of comprehensive and accurate mathematics used to design the process effectively. For this reason, the main experimental procedures for the rheological characterization of SSM are given, together with the models most widely used to fit experimental data. Subsequently, the material behavior under steady state condition is summarized. Also, non-viscous properties and transient conditions are discussed since they are especially relevant for the industrial semi-solid processing.

show abstract

“…In microstructure shape factor and circular diameter reduces as pouring temperature lower down. Some other Al alloys were investigated for different temperature ranges and observations stated in Table-4 [59][60][61][62][63][64][65][66]. Decreased pouring temperature leads to the formation of globular primary α-Al grains but with lost sphericity and decreased particle size.…”

Section: Impact Of Temperaturementioning

confidence: 99%

The key attributes of processing parameters on semi-solid metal casting: An Overview

2021

View full text Add to dashboard Cite

Commercialization of the developed technology is a prime factor for any nation and sector to retain its existence in this global economy. Day by day the technological advancement touching new high in various sectors like the automobile and aircraft industries but high design efficiency is achieved only when it is complemented by appropriate material. In the list newer addition is MMCs (Metal Matrix Composites) which are favorable because of their lower cost achieved by cheaper reinforcement, easy processing, and capabilities of mass production. In recent days, the importance of semi-solid casting has been well accepted among various processing routes for aluminum alloys despite many challenges in terms of process parameters like porosity, agglomeration, non-uniform reinforcement particle distribution, low wettability, and engulfment, and this is a main consideration for the present work. Semi-solid casting is considered to be one of the most important and effective manufacturing processes of aluminum alloy for viable mechanical and metallurgical properties in the current perspective of product requirement and competitiveness. A glimpse of the current status is presented, which shows the potential of the process which can be utilized by the industries for several benefits. In a nutshell, it can be found that process has the capability of alteration by the use of different scraps and also have flexibility according to the processing parameters like stirring, pouring temperature, type of reinforcements, etc.

show abstract

Evaluation of the Deformation Behavior of a Semi-solid Hypereutectic Al-Si Alloy Compressed in a Drop-Forge Viscometer

Cited by 10 publications

References 25 publications

Improving Mechanical Property of Hyper-Eutectic Al-Si Alloys via Regulating the Microstructure by Rheo-Die-Casting

Improving Mechanical Property of Hyper-Eutectic Al-Si Alloys via Regulating the Microstructure by Rheo-Die-Casting

Rheological Characterization of Semi-Solid Metals: A Review

The key attributes of processing parameters on semi-solid metal casting: An Overview

Contact Info

Product

Resources

About