Use of Thixoforming as a Manufacturing Method for Metallic Composites

Hüsnügül Yilmaz Atay; David Aišman; Hana Jirková; Mária Behulova; Bohuslav Mašek

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자료유형: 학술저널

저자정보: Hüsnügül Yilmaz Atay (İzmir Katip Çelebi University) David Aišman (University of West Bohemia) Hana Jirková (University of West Bohemia) Mária Behulova (Slovak University of Technology in Bratislava) Bohuslav Mašek (University of West Bohemia)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.26 No.9

발행연도: 2020.1

수록면: 1,420 - 1,429 (10page)

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Thixoforming is one of the members of the family of semi-solid forming processes. It is possible to obtain complex shapeof materials by this method and unconventional microstructures can be achieved due to its thixotropic properties. However,in this study thixoforming was used not only as forming method but also as a manufacturing method. Metallic compositeswere manufactured by a process of integration of powder metallurgy and semi-solid production technique. The mixture ofCo72.5B15Si12.5alloy and Fe powders become partially melted, compressed mechanically in semi-solid state and filled intricatecavities. Without changing alloy structure, it could be possible to reinforce it with Fe powders. Moreover, the final shapeof the product could be achieved at the same time. Prior to the process, Co72.5B15Si12.5alloy obtained in the form of stickwas characterized by X-ray diffraction (XRD), scanning electron microscopy–energy dispersive spectroscopy (SEM–EDX),differential thermal analysis-thermogravimetry (DTA-TG), light microscope and micro-hardness machine. The stick wasmilled to get alloy powders and they were blended with iron. Characterization of the structures of the composite materialwas performed. It was concluded that the heating process of iron and alloy powders provides the formation of compact metalmatrix composites.

#Manufacturing · Forming · Thixoforming · Metal matrix composites

참고문헌 (18)

참고문헌 신청

K. Osakada / 2008 / History of plasticity and metal forming analysis / ICTP 2008 The 9th International Conference on Technology of Plasticity

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C.H. Hamilton / 1976 / Controlled environment superplastic forming of metals / US 3934441A

T. Özel / 2012 / Prediction of machining induced residual stresses in turning of titanium and nickel based alloys with experiments and finite element simulations / CIRP Ann. Manuf. Technol 61:547~550

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