Quasi-in-situ observation of microstructure at the friction interface: Shear deformation, dynamic recrystallization and mechanical responses during friction welding process

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschung

Authors

Friction based joining processes are monitored and controlled according to the collectable and measurable mechanical responses, such as torque or temperature, during the process. These are a result of the underlying physical microstructural mechanism during the process, where joints are formed under shear deformation (SD) and/or dynamic recrystallization (DRX). To ensure a first quality assessment of the joints during processing, it is critical to precisely investigate the relation between (macro)-mechanical and microstructural responses (SD and DRX). In the present study, the transition from SD to DRX in friction welding has been focused and quasi in-situ observed by ‘stop - action’ rotary friction welding (RFW) experiments coupled with electron back-scattered diffraction (EBSD) analysis using pipe structures, which clarifies the characteristics of the mechanical response. Further RFW experiments with different parameters were conducted to obtain a suitable relation that correlate the DRX transition temperatures to the welding parameters. Thereafter, further ‘stop - action’ RFW experiments were performed on rod structures to investigate the spatial - temporal distribution of SD - DRX at the friction interface and accordingly the friction torque characteristics. The results show that the transition from SD to DRX takes place at the peak torque (PT) and the temperature inflection point (TIP). The TIP of pipe-structure specimens is the critical DRX temperature during FW, which is dominated by friction linear speed. The PT is the threshold that distinguishes the dominating mechanism, SD or DRX, at the welding interface when welding rod structures.
OriginalspracheEnglisch
Aufsatznummer112911
ZeitschriftMaterials Characterization
Jahrgang200
ISSN1044-5803
DOIs
PublikationsstatusErschienen - 01.06.2023

Bibliographische Notiz

Funding Information:
This work was supported by the research fund of the National Natural Science Foundations of China (Grant No. 52205416 ) and the China Postdoctoral Science Foundation ( 2021M692627 ). Feng Jin is grateful for financial support from the Chinese Scholarship Council ( CSC 202106290001 ). The authors declare they have no conflict of interest.

Publisher Copyright:
© 2023 Elsevier Inc.

DOI

Zuletzt angesehen

Publikationen

  1. Structuring Sustainability Reports for Environmental Standards with LLMs guided by Ontology
  2. A path to clean water
  3. How Big Does Big Data Need to Be?
  4. Forest structure and heterogeneity increase diversity and alter composition of host–parasitoid networks
  5. Usage pattern-based exposure screening as a simple tool for the regional priority-setting in environmental risk assessment of veterinary antibiotics
  6. Release of monomers from four different composite materials after halogen and LED curing
  7. Modelling scenarios to identify a combined sediment-water management strategy for the large reservoirs of the Tuyamuyun hydro-complex
  8. Consular Assistance: Rights, Remedies, and Responsibility Comments on the ICJ's Judgment in the LaGrand Case
  9. Understanding Similarities and Differences of Digital Health Platforms
  10. Effect of salinity-changing rates on filtration activity of mussels from two sites within the Baltic Mytilus hybrid zone
  11. Der "fachdidaktische Code" der Lebenswelt- und/oder (?) Situationsorientierung
  12. Putting Architecture in its Social Space: the Fields and Skills of Planning Maastricht
  13. Das relationale Apriori Wiens / Das städtische Apriori des Relationalismus
  14. Monitoring of methotrexate chlorination in water
  15. Time for the Environment: The Tutzing Time Ecology Project
  16. Evidence for singlet state β cleavage in the photoreaction of α-(2,6-dimethoxyphenoxy)-acetophenone inferred from time-resolved CIDNP spectroscopy
  17. The complementary relationship of exploration and exploitation in professional service firms: An exploratory study of IT consulting firms
  18. Multivariate Optimization of Analytical Methodology and a First Attempt to an Environmental Risk Assessment of β-Blockers in Hospital Wastewater
  19. The rise and decline of regional power
  20. Modeling Interactions and Dependencies in Production Planning and Control
  21. How to specify the structure of substituted blade-like zigzag diamondoids
  22. X Machina and the World of Tomorrow