Ranxi Duan

ORCID: 0000-0002-3401-0640
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About
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Research Areas
  • High Entropy Alloys Studies
  • Additive Manufacturing Materials and Processes
  • Metal and Thin Film Mechanics
  • High-Temperature Coating Behaviors
  • Advanced materials and composites
  • Titanium Alloys Microstructure and Properties
  • Additive Manufacturing and 3D Printing Technologies
  • High Temperature Alloys and Creep
  • Welding Techniques and Residual Stresses
  • Polymer Surface Interaction Studies
  • Shape Memory Alloy Transformations
  • Intermetallics and Advanced Alloy Properties
  • Music Technology and Sound Studies
  • Diamond and Carbon-based Materials Research
  • Neuroscience and Music Perception
  • Graphene and Nanomaterials Applications
  • Bone Tissue Engineering Materials
  • Advanced Materials Characterization Techniques
  • Music and Audio Processing
  • Nuclear Materials and Properties
  • Magnetic and transport properties of perovskites and related materials

Southern University of Science and Technology
2020-2024

University of Birmingham
2020-2023

Central South University
2020

Forschungszentrum Jülich
2015-2016

Additive manufacturing (AM) enables the processing of heterogeneous materials with customised architectures to improve strength-ductility synergy. Herein, layerwise-heterostructured high-strength steels were processed by AM two steel powders following designed architectures. The fabricated hierarchical characteristics at layer, melt-pool and grain scales, exhibit good combination, reaching a strength 1.32 GPa together an elongation 7.5%. increased attributes hetero-deformation induced...

10.1080/21663831.2021.1904299 article EN cc-by Materials Research Letters 2021-03-24

Metallic alloys with high strength and large ductility are required for extreme structural applications. However, the achievement of ultrahigh often results in a substantially decreased ductility. Here, we report strategy to achieve strength-ductility synergy by tailoring alloy composition control local stacking fault energy (SFE) face-centered-cubic (fcc) matrix an L12-strengthened superlattice alloy. As proof concept, based on thermodynamic calculations, developed non-equiatomic...

10.1016/j.fmre.2022.05.024 article EN cc-by-nc-nd Fundamental Research 2022-06-14

Eliminating cracks is a big challenge for the selective laser melting (SLM) process of low-weldable Nickel-based superalloy. In this work, three scanning strategies snake, stripe partition, and chessboard partition were utilized to prepare René 104 Ni-based superalloy, which cracking behavior residual stress investigated. The results showed that had significant effects on cracking, stress, relative density SLMed with more partitions boosted emergence cracks, as high-density occurred in these...

10.3390/ma13092149 article EN Materials 2020-05-06

Abstract Isotropy in microstructure and mechanical properties remains a challenge for laser powder bed fusion (LPBF) processed materials due to the epitaxial growth rapid cooling LPBF. In this study, high-strength TiB 2 /Al-Cu composite with random texture was successfully fabricated by using pre-doped powder. A series of advanced characterisation techniques, including synchrotron X-ray tomography, correlative focussed ion beam–scanning electron microscopy (FIB-SEM), scanning transmission...

10.1007/s40195-021-01317-y article EN cc-by Acta Metallurgica Sinica (English Letters) 2021-09-29

This study investigates the effects of heat treatment (HT) time (one, two, and three weeks) on microstructure magnetocaloric effect (MCE) laser powder bed fusion (LPBF) NiMnSn alloys. Increasing HT improves chemical homogeneity, decreases local misorientation imparted by LPBF process. is also associated with an enhancement in maximum magnetic entropy change (ΔSm) values around martensitic transformation temperature (TM), which increases from 0.2 J kg−1 K−1 to 0.45 under 1 T applied field....

10.1016/j.jallcom.2023.171063 article EN cc-by Journal of Alloys and Compounds 2023-06-21
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