Qian Su

ORCID: 0009-0008-4093-4429
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Research Areas
  • Magnesium Alloys: Properties and Applications
  • Aluminum Alloys Composites Properties
  • Metal and Thin Film Mechanics
  • Microstructure and mechanical properties
  • Aluminum Alloy Microstructure Properties
  • Dielectric materials and actuators
  • Ferroelectric and Piezoelectric Materials
  • Advanced materials and composites
  • Intermetallics and Advanced Alloy Properties
  • Acoustic Wave Resonator Technologies
  • MXene and MAX Phase Materials
  • Concrete and Cement Materials Research
  • Innovations in Concrete and Construction Materials
  • Metal Forming Simulation Techniques
  • Advanced ceramic materials synthesis
  • Microstructure and Mechanical Properties of Steels
  • Corrosion Behavior and Inhibition
  • Metal Alloys Wear and Properties
  • Advanced Surface Polishing Techniques
  • Surface Modification and Superhydrophobicity
  • High Entropy Alloys Studies
  • Electrodeposition and Electroless Coatings
  • Metallurgy and Material Forming
  • Extenics and Innovation Methods
  • Recycling and utilization of industrial and municipal waste in materials production

Tianjin Medical University
2025

Shandong Jianzhu University
2010-2024

Hunan University of Technology
2024

Southwest Jiaotong University
2023

Inner Mongolia University of Science and Technology
2021-2022

Harbin Institute of Technology
2013-2021

Nanchang Hangkong University
2012-2021

Nanchang Institute of Technology
2006-2007

Microstructural evolution and mechanical properties of LZ91 Mg-Li alloy processed by high-pressure torsion (HPT) at an ambient temperature were researched in this paper. The microstructure analysis demonstrated that significant grain refinement was achieved after HPT processing with average size reducing from 30 μm (the as-received condition) to approximately 230 nm through 10 turns. X-ray diffraction revealed consisted α phase (hexagonal close-packed structure, hcp) β...

10.3390/ma11040598 article EN Materials 2018-04-13

Relaxor ferroelectric materials have received increasing attention in pulse power devices due to the high density and rapid charge–discharge capability. However, challenges exist relaxor behavior because of their low electric breakdown strength. In this article, a large recoverable energy 5.94 J/cm3, together with efficiency 86.9%, is achieved synchronously La(Mg2/3Nb1/3)O3 (LMN) modified Bi0.5Na0.5TiO3-Sr0.7Sm0.2TiO3 (BNT-SST) ceramic. It suggested that addition LMN reduces grain size...

10.1021/acsaem.2c02895 article EN ACS Applied Energy Materials 2022-12-05

The involvement of magnesium matrix composite enhanced by metal particles, the development low lattice mismatch interface, and refining particle size are all great significance in improving strengthening efficiency. In this work, nano-crystalline Ti/Mg-9Al-Zn-0.3Mn composites were prepared mechanical milling. microstructure was characterized property measured. After milling, grain Mg refined to ~72 nm. Ti particles smashed submicron scale, dispersed matrix. total, 68% nano-scale average 133...

10.3390/ma15207075 article EN Materials 2022-10-11

The fabrication of the micro-channel array through micro-embossing on an ultrafine-grained (UFG) LZ91 Mg-Li alloy was investigated in this paper. Micro-embossing tests indicated that depth channels increase with increasing temperatures. Micro-array widths ranging from 50 μm to 200 were performed applied force 2 kN at 423 K, following by a dwell time 60 s UFG alloy. surface topography indicates embossed micro-channels for all are clearly printed well good geometrical transferability and no...

10.3390/mi9020055 article EN cc-by Micromachines 2018-01-31

10.1016/j.ijrmhm.2007.04.005 article EN International Journal of Refractory Metals and Hard Materials 2007-05-19

Micro‐embossing tests are performed on a coarse‐grained (CG) and an ultrafine‐grained (UFG) dual‐phase Mg–Li alloy processed by high‐pressure torsion (HPT) using different widths of the female die at ambient temperature under force 9 kN. The surface topography, rib profiles, microstructures cross‐sections measured scanning electron microscopy, confocal laser optical respectively. interactive effects cavity dual phases formability micro‐embossing analyzed. Numerical simulations to study...

10.1002/adem.201800961 article EN Advanced Engineering Materials 2018-11-26

Due to the high processing efficiency, low manufacturing cost, and emission of carbon dioxide, microforming attracts considerable attention in field microelectromechanical systems. Thus, micro‐embossing process is carried out for purity Al coarse‐grained (CG) ultrafine‐grained (UFG) microstructure at temperature ranging from 373 523 K. The interactive effects grain size on formability are investigated. results indicate that UFG pure better geometrical accuracy surface quality comparison with...

10.1002/adem.201900690 article EN Advanced Engineering Materials 2019-07-12

Abstract The high and steep slopes along a high-speed railway in the mountainous area of Southwest China are mostly composed loose accumulations debris with large internal pores poor stability, which can easily induce adverse geological disasters under rainfall conditions. To ensure smooth construction subsequent safe operation, it is necessary to master stability evolution process accumulation slope rainfall. This article simulates using finite element analysis software’s hydromechanical...

10.1007/s40534-023-00317-1 article EN cc-by Railway Engineering Science 2023-09-12

Nanocrystalline (NC) magnesium alloys and composites present potential for improving energy efficiency in transportation applications due to outstanding strength. Unfortunately, softening owing grain growth at elevated temperature would induce fatal invalidity. The NC SiCp/AZ91 composite was isothermally annealed. A study on the thermal stability, including phase transformation, growth, softening, strengthening mechanisms carried out. After annealing treatment 673 K 240 min, average size of...

10.1016/j.jmrt.2022.11.147 article EN cc-by-nc-nd Journal of Materials Research and Technology 2022-11-28

The development of a magnesium matrix composite with high content dispersions using conventional liquid-phase process is great challenge, especially for nanometer/submicron particles. In this work, mechanical milling was employed to prepare nanocrystalline AZ91 dispersed 15 vol.% submicron SiC particles (SiCp/AZ91). no SiCp applied as comparative study the same milling. order investigate mechanism dispersing, morphology evolution powders and corresponding distribution were observed. As...

10.3390/ma12060901 article EN Materials 2019-03-18
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