Zeyu Yang, Min Wang, Mingmin Zhang, Changwei Shao, Huan Wang
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Analysis of the Causes and Control of High Hardenability of Gear Steel 18CrNiMo7-6HL
The phenomenon of heat treatment deformation is inextricably linked to the hardenability of steel. The 18CrNiMo7-6HL steel exhibits a markedly high degree of hardenability. To more effectively regulate the deformation processes associated with the heat treatment of this steel, it is essential to investigate the factors that influence its hardenability. This paper presents a study of factory-produced heavy-duty gear steel, 18CrNiMo7-6HL. The steel is compared with SAE4320H steel, which is used for the same products in terms of its inclusions, chemical composition, grain size, martensitic transformation tendency, and heat treatment process. The high difficulty associated with the analytical research of 18CrNiMo7-6HL hardenability represents a significant challenge. This paper aims to provide a comprehensive overview of the factors influencing 18CrNiMo7-6HL steel hardenability and to present potential strategies for optimizing 18CrNiMo7-6HL hardenability.
期刊介绍：
JOM is a technical journal devoted to exploring the many aspects of materials science and engineering. JOM reports scholarly work that explores the state-of-the-art processing, fabrication, design, and application of metals, ceramics, plastics, composites, and other materials. In pursuing this goal, JOM strives to balance the interests of the laboratory and the marketplace by reporting academic, industrial, and government-sponsored work from around the world.
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