A5101552571- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Metallurgy and Material Forming
- Hydrogen embrittlement and corrosion behaviors in metals
- Corrosion Behavior and Inhibition
- Metal Forming Simulation Techniques
- Microstructure and mechanical properties
- Welding Techniques and Residual Stresses
- Metal and Thin Film Mechanics
- Concrete Corrosion and Durability
- Aluminum Alloys Composites Properties
- Fatigue and fracture mechanics
- Advanced Surface Polishing Techniques
- Facial Nerve Paralysis Treatment and Research
- Boron and Carbon Nanomaterials Research
- Cultural Heritage Management and Preservation
- Tunneling and Rock Mechanics
- Erosion and Abrasive Machining
- Advanced ceramic materials synthesis
- Aluminum Alloy Microstructure Properties
- Magnetic Properties and Applications
- Advanced materials and composites
- High-Temperature Coating Behaviors
- Landslides and related hazards
- High Temperature Alloys and Creep
Northeastern University
2009-2024
Universidad del Noreste
2006-2021
Hunan Rare Earth Metal Material Research Institute
2009
Purpose This study aims to investigate the effect of different microstructures and its grain boundary character distribution (GBCD) on corrosion behavior weathering bridge steel. Design/methodology/approach The rust layer characteristics resistance specimens with in simulated industrial environment were studied by Electron Probe X-ray Micro-Analyzer, wavelength-dispersive spectrometer electrochemical techniques. backscatter diffraction technique was used characterize GBCD steels...
A high strength steel with yield on the order of 700 MPa had been developed successfully addition titanium alloy element based a low-carbon steel. The results show hot deformation accelerates ferrite and pearlite transformation retards bainite under continuous cooling condition. strengthening factors this are attributed to tiny interlocked distribution laths carbide precipitation. When amount is more than 70%, higher MPa, simultaneously ratio tensile 1.07, good mechanical performances...
The impact of deformation conditions on divorced eutectoid transformation (DET) is elucidated in bearing steels. experiments suggest that the effect DET two‐fold. In case large reduction, size carbide particles decreased, while number density deformation‐induced carbides increased with deformation. When reduction less than 30%, degree spheroidization increase reduction. Network formed by M 7 C 3 ‐type obtained along prior austenite grain boundaries when to 40%. Although nature different from...
Strain rate dependence on the dynamic recrystallization phenomena of low carbon Q690 V‐N and V‐N‐Cr microalloyed high‐strength steels is studied through thermo‐simulation in terms flow stress changes at temperatures from 850 to 1100 °C strain 0.01 10 s −1 . The experimental results show that are deformation temperature sensitive. With decrease increase rate, value increases remains constant. Flow constitutive equations developed with average activation energy Q 377 325.58 kJ mol ,...
We have studied here the wet/dry cyclic corrosion behaviour of V-N-0.8Cr weathering steel and compared with a reference (Q345B) in 0.01 mol/L NaHSO3 simulated industrial atmosphere. The study indicated that coherent protective oxide layer formed surface microalloyed steel, contained resistant alloying elements (Cr, Ni, Cu, P, Mo). addition Cr significantly inhibited steel. rate Q345B after 360 h were 1.60 g/(h·cm2) 2.42 respectively. major products both steels mainly constituted α-FeOOH γ-...
The hydrogen permeation and embrittlement behavior are studied in GPa‐grade hot‐rolled transformation‐induced plasticity steels with different volume fractions of retained austenite, which is obtained by coiling temperatures. test indicates that the breakthrough time ( t b ), apparent concentration C 0R trap density N T ) increase increasing temperature, while effective diffusion coefficient D eff decreases. results slow‐strain rate tensile show charging can reduce elongation experimental...