Abstract
In this paper, the effect of the heating rate on the process of tempering and the obtained hardness of the DIN 100 V1 (AISI W2) carbon tool steel has been investigated and determined. Steel specimens in two initial states were investigated: after quenching and after quenching and deep-cryogenic cooling. The specimens were submitted to tempering in a dilatometer, varying the heating rates, temperature of tempering between 200°C and 690°C and duration of keeping the specimens at that temperature. A common effect of these factors on the temperature of the start of particular stages in tempering and the obtained properties was determined using dilatometry. Differential dilatation analysis was carried out, together with hardness tests and XRD (X-ray diffraction) analysis.
Kurzfassung
In diesem Artikel wird die Auswirkung der Erwärmgeschwindigkeit auf den Anlassprozess und die Härte des unlegierten Werkzeugstahles DIN 100 V1 (AISI W2) untersucht und bestimmt. Die Stahlproben wurden im abgeschreckten sowie im abgeschreckten und tiefgekühlten Zustand untersucht. Diese Proben wurden in einem Dilatometer mit verschiedenen Erwärmgeschwindigkeiten, Anlassdauern und -temperaturen zwischen 200°C und 690°C angelassen. Die gemeinsame Wirkung dieser Faktoren auf die Temperaturen, bei denen die jeweiligen einzelnen Stufen des Anlassens einsetzen und die daraus resultierenden Eigenschaften wurden mittels Differenzial-Dilatation-Analyse, Härtemessungen und röntgenographischer Methoden untersucht.
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