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Optimized Carburizing Strategy for Enhanced Mechanical Property in 18Cr2Ni4WA Steel.

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Title: Optimized Carburizing Strategy for Enhanced Mechanical Property in 18Cr2Ni4WA Steel.
Authors: Zhang, Z. Y.1 (AUTHOR), Wu, Z. H.2 (AUTHOR), Yuan, Y. D.3 (AUTHOR), Wang, X. N.2 (AUTHOR) wxn@suda.edu.cn, Tian, Y. Z.1 (AUTHOR) tianyanzhong@mail.neu.edu.cn
Source: Metallurgical & Materials Transactions. Part A. Jan2026, Vol. 57 Issue 1, p120-131. 12p.
Subjects: Carburization, Heat treatment, Steel, Materials science, Material fatigue, Wear resistance, Process optimization, Mechanical behavior of materials
Abstract: 18Cr2Ni4WA steel is extensively employed in components such as gears and bearings, owing to its superior mechanical properties. The carburized layer plays a crucial role in enhancing wear resistance and contact fatigue performance. However, traditional carburizing processes are time-consuming. This work presented the microstructural evolution, carbide precipitation, and localized mechanical properties of 18Cr2Ni4WA steel layer by layer after both high-temperature carburizing and conventional carburizing processes, followed by multistage heat treatment. High carburizing temperature reduced processing time by over 60 pct in comparison to the traditional strategy, and led to balanced mechanical properties. The effect of carburizing temperature on the microstructures and mechanical properties at specified carburized layers was discussed. This work offered valuable insights for the development of novel carburizing strategy for advanced steels. [ABSTRACT FROM AUTHOR]
Copyright of Metallurgical & Materials Transactions. Part A is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:18Cr2Ni4WA steel is extensively employed in components such as gears and bearings, owing to its superior mechanical properties. The carburized layer plays a crucial role in enhancing wear resistance and contact fatigue performance. However, traditional carburizing processes are time-consuming. This work presented the microstructural evolution, carbide precipitation, and localized mechanical properties of 18Cr2Ni4WA steel layer by layer after both high-temperature carburizing and conventional carburizing processes, followed by multistage heat treatment. High carburizing temperature reduced processing time by over 60 pct in comparison to the traditional strategy, and led to balanced mechanical properties. The effect of carburizing temperature on the microstructures and mechanical properties at specified carburized layers was discussed. This work offered valuable insights for the development of novel carburizing strategy for advanced steels. [ABSTRACT FROM AUTHOR]
ISSN:10735623
DOI:10.1007/s11661-025-08022-w