A review of the semi-solid processing of steel

Atkinson, Helen V.; Rassili, Ahmed

doi:10.1007/s12289-010-0889-7

Cited by 15 publications

(9 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This processing method is successfully applied in numerous industries which produce parts from aluminium and magnesium alloys [3][4][5][6][7][8][9]. Research is currently being conducted on the practical application of thixoforming in processing of high melting point metal alloys and numerical modeling of the continuous casting processes [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Identification of the steel viscosity and dynamic yield stress for the numerical modelling of casting simulations in the semi-solid state

Sołek¹

2017

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

Conditions of some casting processes cause flow of both liquid and semi-liquid metal alloys inside the die cavity. Generally, the continuous casting, squeeze casting or thixoforming could be classified as such processes. Design or optimisation of casting technology using numerical simulations requires knowledge of the rheological properties. The main objective of the experimental work, presented in this publication, is an analysis of the viscosity of 1.2080 (X210Cr12) high carbon steel in liquid and semisolid state. The secondary purpose of the experimental work was a development of the viscosity models used in continuous casting and thixoforming simulations. The significant achievement of this particular study was identification of thixotropy phenomenon which occurs not only during thixoforming, but also during magnetohydrodynamic stirring in continuous casting processes.

show abstract

Section: Introductionmentioning

confidence: 99%

Identification of the steel viscosity and dynamic yield stress for the numerical modelling of casting simulations in the semi-solid state

Sołek¹

2017

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

show abstract

“…These issues have been recently reviewed. 96 Other high temperature materials under investigation include ductile irons, 97 stellites 98 and high performance steels. 27 Metal Matrix Composites (MMCs) are also of interest.…”

Section: Alloys For Semi-solid Processingmentioning

confidence: 99%

Semisolid processing of metallic materials

Atkinson

2010

Materials Science and Technology

Self Cite

View full text Add to dashboard Cite

Abstract. Semi-solid processing involves forming metallic alloys between the solidus and the liquidus. For the process to operate, the microstructure must consist of solid spheroids in the liquid matrix, rather than dendrites. The material then flows when it is sheared but thickens again when allowed to stand, i.e. it behaves thixotropically. This type of behaviour was first discovered by Flemings and co-workers in the 1970s and is utilized in a family of processes, some now applied commercially. Here the current status of semisolid processing, both technologically and from a research point of view, will be reviewed.

show abstract

“…So far, several treatment methods in SSF have been proposed, including strain-induced melt activation (SIMA) [15], recrystallization and partial melting (RAP) [16], electromagnetic stirring [17], and the cooling slope process [18], etc. Due to the high forming temperatures of ferrous alloys, the forming tools which were in direct contact with the molten metal are prone to degrade during service [19]. Moreover, the transportation of the molten billets, also the oxidation of billets and precise temperature control during forming procedure were the bottlenecks in the application of SSF on high-melting ferrous alloys.…”

Section: Introductionmentioning

confidence: 99%

A Method Based on Semi-Solid Forming for Eliminating Coarse Dendrites and Shrinkage Porosity of H13 Tool Steel

Guo

Liu

Sun

et al. 2018

Metals

View full text Add to dashboard Cite

A method called forging solidifying metal (FSM), which is applied for eliminating coarse dendrites and shrinkage porosity defects of ferrous alloys was proposed based on semi-solid forming technology (SSF). To verify its feasibility, the effects of liquid fraction (F L) on the microstructure of the deformed H13 steel were investigated experimentally. The coarse dendrites structure still existed and cracks appeared when the 0.1/s 50% FSM method was carried out at~20% F L. What is significantly different from that is, the elimination of the coarse dendrites structure and shrinkage porosity defects became more significant, when this method was conducted at the end of solidification (F L < 10%). The microstructure of H13 steel was significantly refined and also became dense in such condition.

show abstract

A review of the semi-solid processing of steel

Cited by 15 publications

References 51 publications

Identification of the steel viscosity and dynamic yield stress for the numerical modelling of casting simulations in the semi-solid state

Identification of the steel viscosity and dynamic yield stress for the numerical modelling of casting simulations in the semi-solid state

Semisolid processing of metallic materials

A Method Based on Semi-Solid Forming for Eliminating Coarse Dendrites and Shrinkage Porosity of H13 Tool Steel

Contact Info

Product

Resources

About