Startseite Effect of Zr content on strain-induced precipitation behavior of Ti–Zr microalloyed low-carbon steel
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Effect of Zr content on strain-induced precipitation behavior of Ti–Zr microalloyed low-carbon steel

  • Hanyu Luo , Xuegang Xiong , Yiyue Lai , Jianchun Cao ORCID logo EMAIL logo , Lisheng Yang und Jinchang Zhang
Veröffentlicht/Copyright: 10. Februar 2025
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 116 Heft 2

Abstract

With two different Zr content Ti–Zr microalloyed low-carbon steels, isothermal relaxation tests at 875–950 °C were conducted using a Gleeble-3500 thermal simulation testing machine. Based on the Avrami equation, the thermodynamic and kinetic model for the precipitation of Ti ( k 1 + m 1 ) Zr ( k 2 + m 2 ) C ( k 1 + k 2 ) N ( m 1 + m 2 ) in austenite was established. The results indicate that the microalloyed elements in Ti–Zr microalloyed low-carbon steel will form composite precipitates through replacement and heterogeneous mechanisms, and nucleate and precipitate at grain boundaries and dislocations in the form of (Ti, Zr) (C, N). For the nucleation and precipitation of carbonitrides at dislocations in 0.035Zr steel and 0.091Zr steel, their nucleation rate–temperature curves (NrT) and Precipitation–time–temperature (PTT) curves intersect at a certain point. The increase in Zr content suppresses the precipitation of carbonitrides from austenite, reducing the strain-induced precipitation in Ti–Zr microalloyed low-carbon steel during rolling process.

Keywords: Ti–Zr microalloyed steel; thermodynamics and kinetics; strain-induced precipitation; composite precipitates
Corresponding author: Jianchun Cao, Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, P.R. China, E-mail:

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors state no conflict of interest.

  6. Research funding: This work was financially supported by the National Natural Science Foundation of China (no. 51761019) and the Vanadium Titanium Alliance Collaborative Project (2022FTLMXTXM-03).

  7. Data availability: The raw data can be obtained on request from the corresponding author.

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Received: 2023-12-01
Accepted: 2024-10-09
Published Online: 2025-02-10
Published in Print: 2025-02-25

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/ijmr-2023-0355
Schlagwörter für diesen Artikel
Ti–Zr microalloyed steel; thermodynamics and kinetics; strain-induced precipitation; composite precipitates

Artikel in diesem Heft

  1. Frontmatter
  2. Review
  3. A review on advancement in mechanical and structural properties of graphene reinforced aluminium matrix composites
  4. Original Papers
  5. Effect of pH and Yb3+ doping concentration on the structure and upconversion luminescence properties of GdPO4:Er3+,Yb3+
  6. Fabrication and characterization of reduced graphene oxide on MoS2 film for IR detectors
  7. Green synthesis of highly luminous lemon juice-based carbon dots for antimicrobial assessment and fingerprint detection
  8. Cobalt aluminates prepared by ultrasonic-assisted synthesis using different surfactants for Congo red photocatalytic degradation
  9. Molecular dynamics study of the dissolution of crystalline and amorphous nickel nanoparticles in aluminium
  10. Effect of Zr content on strain-induced precipitation behavior of Ti–Zr microalloyed low-carbon steel
  11. On 2-stage martensitic transformation behavior in aged Ti50.5Ni33.5Cu11.5Pd4.5 alloys with near-zero thermal hysteresis
  12. Microstructure, XRD characteristics and tribological behavior of SiC–graphite reinforced Cu-matrix hybrid composites
  13. News
  14. DGM – Deutsche Gesellschaft für Materialkunde
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