[en] The main goal of this work is an analysis of the semi-industrial process of steel thixoforming. The process was carried out using industrial equipment. This equipment consists of a heating device, industrial robots and a hydraulic press. The globular microstructure ensuring thixotropic properties was obtained using the SIMA method. It is one of the simpler and cheaper methods which could be easy applied in case of steel alloys. In this work the hot forged rods, commercially produced from 100Cr6 steel, were used. The first part of the work concerned the determination of the proper temperature range, for thixoforming of 100Cr6 steel. Next, some heating tests were carried out in order to obtain as uniform temperature distribution as possible. Heating process was executed using inductive heating. Microstructure analysis of heated samples reveals globular particles surrounded by liquid phase. Next the thixoforming process was carried out using closed-die forming technique. Completely filled die cavity and good microstructure of the part show that applied process parameters were properly selected.
Disciplines :
Materials science & engineering
Author, co-author :
Solek, Krzysztof; AGH University of Science and Technology
Rassili, Ahmed ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Pierret, Jean-Christophe ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Vaneetveld, Grégory ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Language :
English
Title :
Characterization of thixoforming process of 100Cr6 steel
Publication date :
September 2010
Journal title :
Transactions of Nonferrous Metals Society of China
ISSN :
1003-6326
Publisher :
Elsevier
Special issue title :
Proceedings of the 11th International Conference on Semi-Solid Processing of Alloys and Composites (Part B)
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Bibliography
TG MEZGER The rheology handbook: For users of rotational and oscillatory rheometers [M] 2nd ed. 2006 Vincentz Network Hannover
L ZHANG, DC GUO A general etchant for revealing prior-austenite grain boundaries in steels [J] Materials Characterization 30 4 1993 299 302
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