Strengthening Mechanism and Thermal Stability of Spray Formed H13 Steel

Abstract:

The aim of this work is to study the strengthening mechanism and thermal stability of spray formed H13 steel. The microstructure and hardness of spray formed H13 steels are investigated by electron microscopy, transmission electron microscopy and hardness measurementscanning. The calculated results demonstrate that tensile strength, impact energy and hardness values of sprayed-formed H13 steel are higher than that of as-cast H13 steel when the tempering temperature is 600 °C after quenched at 1050 °C. Compared with as-cast H13 steels, tempered spray-formed H13 steels possess supernal high-temperature temper resistant stability. The chemical composition of the carbides in spray-formed steels is V and Cr rich spherical carbides are hardly influenced by the tempering treatment.

• Periodical: Solid State Phenomena (Volume 295)
• Pages: 49-56
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.295.49
• Online since: August 2019
• Authors: Zhan Zhan Zhang*, Wan Zhen Wang, Yun Bo Chen, Miao Hui Wang, Chang De Zhao, Xue Yuan Ge, Ke Wei Gao, Jin Ming Liang
• Keywords: As-Cast H13 Steel, Microstructure, Spray-Formed H13 Steel, Temperature Temper Resistant, Tempering Behavior

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