Study on the Effect of Pressure and Temperature on the Mechanical Properties of Carburized Steel
Source abstract
Abstract
20CrMnTi carburized steel is widely used in the manufacturing of gear transmission components. Gears often operate under complex working conditions that involve high pressure and temperature, and intermittent alternating loads. The material is frequently subjected to repeated compression and resilience cycles, which significantly affect dimensional accuracy and stability. This study investigates the influence of different temperatures and pressures on the compression resilience properties and microhardness of 20CrMnTi steel. The results indicate that temperature and pressure lead to a nonlinear increase in the compression curve, reduce resilience properties and the microhardness of the carburized layer, and affect the microhardness of the matrix. Microstructural analysis indicated that plastic deformation, carbide coarsening, and a lower elastic modulus led to the enlarged compression and diminished microhardness in the carburized layer. Work hardening, dynamic recrystallization, and plastic deformation in the matrix material weaken resilience properties and influence the distribution of microhardness in the matrix.
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Research context
OpenAlex topics: Metallurgy and Material Forming · Microstructure and Mechanical Properties of Steels · Powder Metallurgy Techniques and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
TZ (Tianjin) Binhai Heavy Machinery Co., Ltd., Tianjin 300450, China
Department of Mechanical Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China
State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an 710049, China
Funding
Basic Research Program of Shanxi Province Joint Funding Project · “Open Bidding for Selecting the Best Candidates” Science and Technology Major Project of Shanxi Province · Research Funding Project for Introduced Talents at Taiyuan Institute of Technology · Fundamental Research Program of Shanxi Province · Key Research and Development Program of Shanxi Province
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