Qingtao Guo

ORCID: 0000-0003-1667-4061
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Research Areas
  • Aluminum Alloy Microstructure Properties
  • Metallurgical Processes and Thermodynamics
  • Solidification and crystal growth phenomena
  • Aluminum Alloys Composites Properties
  • Metallurgy and Material Forming
  • High Entropy Alloys Studies
  • Additive Manufacturing Materials and Processes
  • Mineral Processing and Grinding
  • Microstructure and Mechanical Properties of Steels
  • Advanced Welding Techniques Analysis
  • Induction Heating and Inverter Technology
  • Metal and Thin Film Mechanics
  • Microstructure and mechanical properties
  • Minerals Flotation and Separation Techniques
  • Advanced materials and composites
  • Advanced Statistical Process Monitoring
  • Bauxite Residue and Utilization
  • Topology Optimization in Engineering
  • Surface Treatment and Residual Stress
  • Probabilistic and Robust Engineering Design
  • Electronic and Structural Properties of Oxides
  • Materials Engineering and Processing
  • Fluid Dynamics and Heat Transfer
  • Metal Forming Simulation Techniques
  • PI3K/AKT/mTOR signaling in cancer

Ansteel (China)
2013-2024

Civil Aviation Flight University of China
2024

China Iron and Steel Research Institute Group
2022

Nanjing Medical University
2011

Solid (South Korea)
2009-2010

Yonsei University
2010

Yonsei University Health System
2009

Dalian University of Technology
2006

Dendritic bridging plays a key role in hot tearing formation and crack propagation, but it has yet to be clearly understood. This article describes the process of interdendritic its effect on propagation tearing. Two types are proposed: mechanical where dendrites contact with each other connected only by surface tension liquid film metallurgical metallurgically bonded at their points. Mechanical cannot effectively impede thus exhibiting brittle fracture characteristic, while can hinder...

10.1016/j.jmrt.2023.10.314 article EN cc-by-nc-nd Journal of Materials Research and Technology 2023-11-01

The mold flux fundamentally determines solidification and friction by controlling heat transfer lubrication within the mold, it results in dominating formation of various primary cracks. It is critical to reveal distribution evolution slag layers air gap, especially for control optimization initial slab surface defects. Based on measured temperatures combination with inverse numerical model, this paper establishes a model which describes gap aiming calculate non-uniform liquid slag, solid...

10.2355/isijinternational.isijint-2017-393 article EN cc-by-nc-nd ISIJ International 2018-05-15

A three-layered composite material, consisting of an Al outer layer and a 7075-10 wt % B4C inner layer, was fabricated by semi-continuous casting following hot rolling process. The exhibits clear layered structure with good interfacial bond between layers. In the sessile drop experiment, alloy melt dropped on 7075-B4C at 650 °C, contact angle decreasing from 105° to 25° in 50 s, indicating that infiltration spreading both played important roles wetting reinforced particles were distributed...

10.3390/met8080600 article EN cc-by Metals 2018-08-01

In the present work, Cu-Pb-Sn and Q235 laminated composite were fabricated by a horizontal semisolid rolling procedure. The interfacial structure, elemental distribution, properties of investigated. Finite-element simulation was conducted to analyze temperature field solidification process during rolling. An appropriate semi-solid region observed at pouring 1598 K in simulation, which would effectively kept fluidity avoided casting defects. experimental results showed that good interface...

10.3390/met8090722 article EN cc-by Metals 2018-09-13

In the present study, vertical semi-continuous casting equipped with electromagnetic stirring (EMS) was applied in order to control solidification process and obtain anticipated homogeneous microstructure for Cu-15Ni-8Sn alloy. The experimental results indicate that of as-cast (wt.%) alloy prepared by conventional consists Sn-depleted α phase (α Cu(Ni) solid solution), Sn-rich γ ((CuxNi1-x)3Sn), intermediate transition region (α+γ), most Sn element mainly segregates at dendritic grain...

10.1088/1757-899x/424/1/012073 article EN IOP Conference Series Materials Science and Engineering 2018-10-13

In order to enhance the stirring efficiency in molten metal, a new electromagnetic stirrer by tilting yokes certain angle was proposed. The main merit of this is that it can generate simultaneously both rotating and travelling forces. current work, numerical model established calculate induced flow fields. effect tilt on studied. It found when increased from 15 30°, maximum absolute value force vertical direction double. average reaches 1·26×10−2 N, which more than half x or y direction....

10.1179/1743133612y.0000000031 article EN International Journal of Cast Metals Research 2013-01-16

10.1016/s1006-706x(15)30145-x article EN Journal of Iron and Steel Research International 2015-11-01
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