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Abstract

This article provides general information on the definition, purposes, and quench equipment for direct-forge quenching (DFQ) and direct heat treatment (DHT) processes that are widely used in automotive and various other mechanical industries. It discusses the technological advances in these processes and their ability to produce high-quality components at low production cost from microalloyed steels. Further, the article describes the influence of carbon contents on toughness of microalloyed direct heat treated steels. It focuses on the DFQ and DHT steel technologies applied in continuous rolling mills to produce various DHT steels for machining and cold forming applications.

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H. Tahira, K. Funatani, 2014. "Forge and Direct Heat Treatment Processes and Technologies", Heat Treating of Irons and Steels, Jon L. Dossett, George E. Totten

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