A5041804766- Hydrogen embrittlement and corrosion behaviors in metals
- High Entropy Alloys Studies
- Additive Manufacturing Materials and Processes
- High-Temperature Coating Behaviors
- Corrosion Behavior and Inhibition
- Metal and Thin Film Mechanics
- Aluminum Alloys Composites Properties
- Additive Manufacturing and 3D Printing Technologies
- Microstructure and Mechanical Properties of Steels
- Aluminum Alloy Microstructure Properties
- Nuclear Materials and Properties
- Microstructure and mechanical properties
- Fatigue and fracture mechanics
- Non-Destructive Testing Techniques
- Hydrogen Storage and Materials
- Welding Techniques and Residual Stresses
- Magnetism in coordination complexes
- Fusion materials and technologies
- High Temperature Alloys and Creep
- Magnesium Alloys: Properties and Applications
- Plant-Microbe Interactions and Immunity
- Mechanical stress and fatigue analysis
- Organometallic Complex Synthesis and Catalysis
- Electrocatalysts for Energy Conversion
- Catalysis and Hydrodesulfurization Studies
Norwegian University of Science and Technology
2016-2024
Southern Medical University
2020-2024
Beijing Institute of Technology
2023-2024
Chongqing Jiaotong University
2023
Hangzhou Normal University
2020-2021
Xihua University
2019-2020
Chengdu University
2020
Stomatology Hospital
2017-2020
Guangdong Province Stomatological Hospital
2017
University of Science and Technology Beijing
2011-2012
Abstract The antagonism between strength and resistance to hydrogen embrittlement in metallic materials is an intrinsic obstacle the design of lightweight yet reliable structural components operated hydrogen-containing environments. Economical scalable microstructural solutions this challenge must be found. Here, we introduce a counterintuitive strategy exploit typically undesired chemical heterogeneity within material’s microstructure that enables local enhancement crack trapping. We use...
The susceptibility of pipeline steels to hydrogen embrittlement, which can significantly impair mechanical performance, especially fracture toughness, is a critical issue in infrastructure integrity. This study evaluates the toughness modern and vintage API X65 under cathodic polarization (CP) conditions, employing methods such as rising displacement testing, stepwise constant load testing. Tearing crack growth was detected at tip opening displacements (CTODs) 0.032 0.055 mm while subsequent...
Fully equiaxed grain microstructures are easily achieved in additively manufactured high entropy alloy AlCoCrFeNiTi 0.5 .The formation is attributed to frequent dendrite fragmentation and hence profuse effective nucleation sites.A quantitative analysis performed provide a theoretical basis for our experimental findings.
Abstract Recently, high-entropy alloys (HEAs) designed by the concepts of unique entropy-stabilized mechanisms, started to attract widespread interests for their hydrogen storage properties. HEAs with body-centered cubic (BCC) structures present a high potential due hydrogen-to-metal ratio (up H / M = 2) and vastness compositions. Although many studies reported rapid absorption kinetics, investigation desorption is missing, especially in BCC HEAs. We have investigated crystal structure,...
5xxx Al-Mg based alloys are widely applied as non-heat-treatable alloys. In this work, we designed a dispersion-strengthening Al-4Mg-1Mn-0.3Fe-0.2Si-0.2Zr-0.2Cr (wt.%) alloy. By applying ramp heating and 400 °C isothermal aging, significant effect through the formation of various types dispersoids was achieved. Detailed scanning electron microscopy (SEM) transmission (TEM) analysis revealed precipitation behaviors nanoscale Mn-rich Al3Zr nanoparticles during heat treatments. As result, an...
It is well known that ferrous materials can be damaged by absorption of hydrogen. If a sufficient quantity hydrogen penetrates into the material, static fracture and material's fatigue performances affected negatively, in particular causing an increase material crack growth rates. The latter often referred as Hydrogen Affected-Fatigue Crack Growth Rate (HA-FCGR). therefore paramount importance to quantify impact, terms induce acceleration order determine life components exposed avoid...
Abstract The fatigue behaviour of notched and unnotched specimens produced by additively manufactured Inconel 718 were analysed in the as‐built heat‐treated conditions. surfaces display high roughness defects acting as initiation sites. In condition, fine subgrains found, while state, removed dislocation density recovered. SN‐curves are predicted based on tensile properties, hardness obtained fractography, using ‐method.
AlCoCrFeNi2.1 eutectic high-entropy alloy (HEA) was fabricated in as-cast and additively manufactured (AM) states. The hydrogen embrittlement susceptibility of both materials investigated through in-situ uniaxial tensile test. Combining several advanced high-resolution scanning electron microscopy (SEM)-based techniques, the deformation behavior have been intensively discussed. Interfacial cracking along phase boundaries grain are found to be responsible for hydrogen-assisted fracture this...
In recent years, high-entropy alloys (HEAs) have attracted wide attention for their enormous hydrogen storage potential, fast absorption kinetics, and a range of composition selectivity, the fact that with body-centered cubic (BCC) structure are considered to possess large capacity. Herein, three V30Nb10(TixCr1–x)60 HEAs different Ti contents (Ti25, Ti30, Ti35) forming BCC structures were designed using method CALPHAD. The microstructure characteristics performances, especially kinetics...