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<p>A polycrystalline elastoplastic phase-field model simulated martensitic transformation and carbide precipitation during quenching–tempering. The focus was on investigating the variations in carbon content, local stress, and plastic strain during the carbide precipitation process. High-carbon steel retains more residual austenite and forms lenticular martensite, while low-carbon steel produces lath martensite. Low-temperature tempering generates higher carbide volume fractions in high-carbon steel. Carbide precipitation elevates local stress and plastic strain while raising interfacial carbon concentration.</p>

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Elastoplastic Phase-Field Study of Local Stress and Plastic Deformation Due to Carbide Precipitation in High- and Low-Carbon Quenching–Tempering Steels

  • 期刊论文

  • 发表日期：

    2025年7月20日

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  • Yuchen Yang,
  • Hongqing Zheng,
  • Xunwei Zuo,
  • Jianfeng Wan,
  • Yonghua Rong,
  • Nailu Chen

摘要

A polycrystalline elastoplastic phase-field model simulated martensitic transformation and carbide precipitation during quenching–tempering. The focus was on investigating the variations in carbon content, local stress, and plastic strain during the carbide precipitation process. High-carbon steel retains more residual austenite and forms lenticular martensite, while low-carbon steel produces lath martensite. Low-temperature tempering generates higher carbide volume fractions in high-carbon steel. Carbide precipitation elevates local stress and plastic strain while raising interfacial carbon concentration.