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Surface Reactions during Immersion Quenching of Metallic Parts

Martin Schwalm
Technische Universität München, Institut für Werkstoff und Verarbeitungswissenschaften, Munich, West Germany

Hans Maria Tensi
Technische Universität München, Institut für Werkstoff und Verarbeitungswissenschaften, Munich, West Germany


The cooling process of metallic objects quenched in liquids with a low boiling point is shortly described. Different surface reactions as they occur during immersion quenching of Ag-specimen in water, oil and aqueous solutions of polyethylene oxides are shown and their effect on the temperature-time-curve is discussed. Possibilities to influence the cooling power of a certain aqueous solution of polyethylene oxides(Fluid A) were investigated. The results and their effects on steel-hardening are presented.

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