Study on Dynamic Recrystallization Models of 21-4N Heat Resistant Steel

• Autorzy: Li Yiming , Huang Xiaomin , Ji Hongchao , Li Yaogang , Wang Baoyu , Tang Xuefeng

Identyfikatory

DOI

10.24425/amm.2021.134770

• Języki publikacji: EN

Abstrakty

EN

The high-temperature deformation process and dynamic recrystallization (DRX) process of 21-4N were investigated under the conditions of the deformation temperature range of 1273~1453K, the strain rate range of 0.01~10s^-1 and the deformation degree of 60% (the total deformation is 0.916) by using Gleeble-1500D thermal simulated test machine. The curves of stress-strain (σ – ε) were obtained, and the curves of work hardening rate (θ) and strain (ε) were obtained by taking derivative of σ – ε. The DRX critical strains under different conditions were determined by the curves of work hardening rate (θ – ε), and the DRX critical strain model was established. The peak strains of 21-4N were obtained by the curves of σ – ε, the relationship between peak stress (σ_p) and critical strain (ε_c) was determined, and the peak strain model was established. The DRX volume fraction models of 21-4N were established by using Avrami equation. The DRX grain size of 21-4N was calculated by Image Pro Plus 6.0, and its DRX grain size models were established.

Słowa kluczowe

EN

21-4N; hot deformation; dynamic recrystallization; critical strain; volume fraction

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 1
• Strony: 145--152
• Opis fizyczny: Bibliogr. 30 poz., fot., rys., tab., wzory

Twórcy

autor

Li Yiming

• North China University of Science and Technology, College of Mechanical Engineering, Hebei Tangshan, 063210, China

autor

Huang Xiaomin

• North China University of Science and Technology, College of Mechanical Engineering, Hebei Tangshan, 063210, China
• University of Science and Technology, Beijing School of Mechanical Engineering, Beijing 100083, China

autor

Ji Hongchao

• North China University of Science and Technology, College of Mechanical Engineering, Hebei Tangshan, 063210, China
• University of Science and Technology, Beijing School of Mechanical Engineering, Beijing 100083, China
• University of Science and Technology Beijing, National Center for Materials Service Safety, Beijing 100083, China

autor

Li Yaogang

• North China University of Science and Technology, College of Mechanical Engineering, Hebei Tangshan, 063210, China

autor

Wang Baoyu

• University of Science and Technology, Beijing School of Mechanical Engineering, Beijing 100083, China

autor

Tang Xuefeng

• The Hong Kong Polytechnic University, Department of Mechanical Engineering, Hung Hom, Kowloon, Hong Kong, China

Bibliografia

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Uwagi

Błędna numeracja bibliografii.

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).