Continuous Casting and Thixoforming of new Al-Si-Cu-Mg alloys

• Grant number: 09/08478-1
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: August 01, 2009
• End date: July 31, 2013
• Field of knowledge: Engineering - Mechanical Engineering - Manufacturing Processes
• Principal Investigator: Eugênio José Zoqui
• Grantee: Luis Vanderlei Torres
• Host Institution: Faculdade de Engenharia Mecânica (FEM). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil

Abstract

This project aims to deepen the development of technology for obtaining and characterisation of new metal alloys for applications in the semi-solid state. In recent work, it was mapped the influence of the silicon and magnesium content in obtaining as well as in the viscous behaviour of some Al-Si-Mg alloys, produced by semi-continuous casting with and without electromagnetic stirring, (with and without the use of ultra-refining ). Were made: the structural characterization, the characterisation of the solidus and liquidus temperatures and the various transformations of intermediate stage in which they evolve during his re-heating for tixoforming, besides determining the viscous behavior through hot compression tests. This project seeks to extend this line of research, improving techniques of production, namely through continuous casting, to test the feasibility in terms of tixoformability, of new compositions Al-Si-Cu-Mg, besides test alloys, unusual for tixoforming, but in common use in other applications. A comparison of morphology and viscous behaviour with the material originally used for operations of tixoforming, that is mostly the A356 and A357 alloys, will determined the potential application. This way, this project provides for the acquisition of an inductive heating system, the assembly of a system of continuous casting with electromagnetic stirring, as well as, material consumption required to achieve the same.

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

TORRES, LUIS VANDERLEI; TORRES, LUIS FERNANDO; ZOQUI, EUGENIO JOSE. Electromagnetic Stirring versus ECAP: Morphological Comparison of Al-Si-Cu Alloys to Make the Microstructural Refinement for Use in SSM Processing. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2016. (09/08478-1, 15/22143-3, 13/09961-3)

BROLLO, GABRIELA LUJAN; TARNAYO, DAIMER VELAZQUEZ; TORRES, LUIS VANDERLEI; ZOQUI, EUGENIO JOSE. Thermodynamic evaluation of the thixoformability of Al-Si-Cu alloys. CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, v. 67, DEC 2019. (09/08478-1, 15/22143-3, 13/09961-3)

LUIS VANDERLEI TORRES; EUGÊNIO JOSÉ ZOQUI. Comparação metalúrgica das ligas semissólidas Al2Si2.5Cu e Al4Si2.5Cu produzidas via processo de extrusão em canal angular. MATERIA-RIO DE JANEIRO, v. 25, n. 2, 2020-07-24. (09/08478-1)

TORRES, LUIS VANDERLEI; TORRES, LUIS FERNANDO; ZOQUI, EUGENIO JOSE. Microstructural characterization of the A356 alloy in different processing routes used in the thixoforming process. MATERIA-RIO DE JANEIRO, v. 22, n. 4, 2017. (09/08478-1)

GABRIELA LUJAN BROLLO; CECÍLIA TEREZA WEISHAUPT PRONI; EUGÊNIO JOSÉ ZOQUI. The effect of the chemical distribution on the mechanical properties of the Al-5.5wt%Si-5wt%Zn-0.2wt%Mg alloy after thixoforging and solution heat treatment. MATERIA-RIO DE JANEIRO, v. 27, n. 2, 2023-01-13. (09/08478-1, 13/09961-3, 15/22143-3)

TORRES, LUIS VANDERLEI; ZOQUI, EUGENIO JOSE. Mechanical Properties of Thixoformed Al-Si-Cu Alloys. INTERNATIONAL JOURNAL OF METALCASTING, v. N/A, p. 20-pg., 2023-06-09. (09/08478-1, 22/05050-5)

TORRES, LUIS VANDERLEI; ZOQUI, EUGENIO JOSE. Microstructural Stability and Rheological Behavior of Al-Si-Cu Alloys in the Semi-solid State. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, v. 53, n. 5, p. 17-pg., 2022-08-10. (15/22143-3, 18/11802-4, 09/08478-1)

TORRES, LUIS VANDERLEI; TORRES, LUIS FERNANDO; ZOQUI, EUGENIO JOSE. Electromagnetic Stirring versus ECAP: Morphological Comparison of Al-Si-Cu Alloys to Make the Microstructural Refinement for Use in SSM Processing. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, v. 2016, p. 7-pg., 2016-01-01. (13/09961-3, 15/22143-3, 09/08478-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TORRES, Luis Vanderlei. Thixoforming of new Al-Si-Cu alloys. 2013. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Mecânica Campinas, SP.