Development of high strength-ductility Mg-Er extruded alloys by micro-alloying with Mn

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

  • Shibo Zhou
  • Aitao Tang
  • Tingting Liu
  • Yuanding Huang
  • Peng Peng
  • Jianyue Zhang
  • Norbert Hort
  • Regine Willumeit-Römer
  • Fusheng Pan
This work systematically investigated the influence of the micro-Mn addition on the microstructures and mechanical properties of Mg-Er alloys. To investigate their deformation mechanisms during tensile testing, electron back-scattered diffraction, transmission electron microscopy, slip trace analysis, and visco-plastic self-consistent polycrystal constitutive (VPSC) modeling were used. The study showed that the as-solid solution samples only consist of the α-Mg phase. All samples exhibit a complete dynamic recrystallized (DRXed) microstructure with an average grain size of 2.79 µm after hot extrusion. The ductility first increases from 26.02 % to 35.34 % and then remains unchanged with the increment of Mn content. Meanwhile, the yield strength significantly increases from 95 MPa to 200 MPa. According to VPSC results, the initial slip resistance (τ0) difference between prismatic and basal slips decreases from 109 MPa to 92 MPa and τ0 between pyramidal and basal slip systems from 129 MPa to 112 MPa. Both the VPSC and two-beam diffraction results confirmed that pyramidalslip andslip were activated during tensile deformation. The quantitative analysis of the slip trace line verified that the volume of non-basal slip reached 65 % when the content of Mn was increased to 0.9 wt%. Mn in solid solution increased the activity of pyramidaland prismaticdislocations during deformation, which is beneficial for accommodating c-axis strain. Consequently, the ambient ductility of Mg-2Er alloy with Mn addition is improved.
OriginalspracheEnglisch
Aufsatznummer169669
ZeitschriftJournal of Alloys and Compounds
Jahrgang947
ISSN0925-8388
DOIs
PublikationsstatusErschienen - 25.06.2023

Bibliographische Notiz

Funding Information:
This research was funded by National Natural Science Foundation of China (02110023210043, 51971042, U2167213). The authors would like to thank joint lab for electron microscopy of Chongqing University. This work was supported by Sinoma Institute of Materials Research (Guang Zhou) Co. Ltd (SIMR). The China Scholarship Council is also gratefully acknowledged for financial support for Shibo Zhou (202106050089).

Funding Information:
This research was funded by National Natural Science Foundation of China ( 02110023210043 , 51971042 , U2167213 ). The authors would like to thank joint lab for electron microscopy of Chongqing University. This work was supported by Sinoma Institute of Materials Research (Guang Zhou) Co., Ltd (SIMR). The China Scholarship Council is also gratefully acknowledged for financial support for Shibo Zhou ( 202106050089 ).

Publisher Copyright:
© 2023 Elsevier B.V.

DOI

Zuletzt angesehen

Publikationen

  1. The valuation of ecosystem services
  2. Lernende Organisation
  3. Resistance in the Environment
  4. Die Rechtschreibung hat dienende Funktionen
  5. Sustainability process assessment on transformative potentials
  6. Préparer Erasmus: tout un projet
  7. Demographic change in work organizations
  8. Influence of carbon nanoparticle modification on the mechanical and electrical properties of epoxy in small volumes
  9. Use your power for good: plural valuation of nature – the Oaxaca statement
  10. A detailed decomposition for nonlinear econometric models
  11. Incomplete aerobic degradation of the antidiabetic drug Metformin and identification of the bacterial dead-end transformation product Guanylurea
  12. Die Universität im Wettbewerb
  13. Erfolgreich enttäuschend
  14. Do I need to charge right now? Tailored choice architecture design can increase preferences for electric vehicle smart charging
  15. Covid-19 lockdown and the behavior change on physical exercise, pain and psychological well-being
  16. Corrigendum to “Rethinking economic practices and values as assemblages of more-than-human relations” [Ecological Economics 211 (2023) 107866]
  17. A construction of singular overlapping asymmetric self-similar measures
  18. Travel pattern of the Asean students in Malaysia
  19. The first 50 contributions to the Data Observer Series - An Overview
  20. What Makes a Person a Potential Tourist and a Region a Potential Tourism Destination?
  21. Vermittlungstheologie II. Dogmatisch
  22. Institutional Entrepreneurship
  23. Anticipatory Adjustments to Being Picked Up in Infancy
  24. Dataset of physiological, behavioral, and self-report measures from a group decision-making lab study
  25. The Maternal in Drag
  26. Kunst kann Krisen visualisieren – muss sie aber nicht
  27. Surviving global change? Agricultural Interest Groups in Comparative Perspective
  28. A reversed double movement in Brazil
  29. Teachers' beliefs and goals concerning inquiry-based science
  30. The relation of mindfulness and prosocial behavior
  31. Balancing ecological and social goals in PES design – Single objective strategies are not sufficient
  32. Technikpolitik, Technikfolgenabschätzung und Partizipation
  33. Assessment of upstream bioprocessing
  34. A Lyapunov-based Adaptive Control Law for an Electromagnetic Actuator
  35. Müde Witze werden wach