Semi-solid metal processing.

Namba, Akihiko

doi:10.2464/jilm.45.346

Cited by 10 publications

(2 citation statements)

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“…[ 168 ] Some of these applications include the production of steering knuckles and engine suspension mounts in automobile fields. [ 169 ] Thixocasting consists of a specific feedstock material that is being heated to semisolid state; however, rheocasting exhibits many advantageous features over earlier one such as no inclusion of feedstock material, recycling of scrap, and saving in energy. [ 168 ] Curle and Ivanchev.…”

Section: Processing Techniques Of Amcsmentioning

confidence: 99%

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

2020

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Aluminum metallic composites (AMCs) have been recognized as promising material exhibiting excellent functional and structural properties that can be significantly tailored to meet the industrial demands as well as to meet the design criteria for many applications such as aerospace, automobiles, marine, defense, and so on. Herein, an effort is made to provide an extensive overview of the various processing techniques adopted for the development of AMCs. Various processing kinetics of stir casting technique are elaborated comprehensively in terms of existing challenges, conceivable modifications incorporated in it. Considering the critical assessment on mechanical properties made through various kinds of literature, an electromagnetic stir-squeeze casting synergically equipped with ultrasonic transducing probe and bottom pouring attachments is recommended as the most appropriate processing technique for the development of AMCs. Moreover, appropriate recommendations regarding process variables and additives/modifiers, and potential future research opportunities are also addressed significantly to encourage the ongoing and upcoming researchers, which lead this critical Review toward novelty and uniqueness.

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Section: Processing Techniques Of Amcsmentioning

confidence: 99%

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

2020

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“…It is said that the spherical crystal structure contributes to the stability of mechanical properties. [4] In semi-solid forming, attempts have been made to use a cold chamber die casting machine to form the slurry obtained in the past, but there are problems such as poor flowability and insufficient filling of the slurry. Therefore, this study focuses on semi-solid forging, in which semi-solid slurry is directly formed, as a new semi-solid forming process.…”

Section: Introductionmentioning

confidence: 99%

Study on Processing Conditions for Semi-Solid Forging of Magnesium Alloys

Furuta,

Nakagawa,

Tanaka

et al. 2023

SSP

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Magnesium alloy castings are mainly formed by the die casting method, but this method has the disadvantage that product properties such as strength vary due to many defects inherent in casting. In this study, AZX912 (a flame-retardant magnesium alloy with 2% calcium added to AZ91D alloy) was semi-solid forged using a servo press and die cushion system to stabilize product properties. Experiments were conducted to refine the α-phase and reduce the yield point, and the stirring speed was changed and its effect was investigated. Observation of the microstructure of the molded product using an optical microscope showed that the average grain size of the α-phase became smaller as the stirring speed increased. Tensile tests were conducted on specimens cut from the compacts, and the yield point increased as the stirring speed increased. This is thought to be due to compliance with Hall Petch's law. The microstructure of the molded product was observed under an optical microscope and showed a three-layer structure with a dendrite shape in the upper part (about 5%), a grain structure in the middle part (over 90%), and a chill layer in the lower part (less than 5%). Comparison of the thickness of the chill layer showed that the thickness of the chill layer decreased as the solidus ratio increased.

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Fabrication Processes for Composites

Nishida

2012

Introduction to Metal Matrix Composites

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Semi-solid metal processing.

Cited by 10 publications

References 0 publications

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

A Critical Review on Synthesis of Aluminum Metallic Composites through Stir Casting: Challenges and Opportunities

Study on Processing Conditions for Semi-Solid Forging of Magnesium Alloys

Fabrication Processes for Composites

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