A5075393241- High Entropy Alloys Studies
- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Surface Treatment and Residual Stress
- Advanced materials and composites
- High-Temperature Coating Behaviors
- Powder Metallurgy Techniques and Materials
- Additive Manufacturing Materials and Processes
- Aluminum Alloys Composites Properties
- Metallurgy and Material Forming
- Nanoporous metals and alloys
- Chalcogenide Semiconductor Thin Films
- Hydrogen embrittlement and corrosion behaviors in metals
- Intermetallics and Advanced Alloy Properties
- Electrocatalysts for Energy Conversion
City University of Hong Kong
2022-2024
Central South University
2020-2024
Martensite hardening and transformation-induced plastic deformation (TRIP) are crucial to the mechanical properties of steels. In this study, maraging TRIP-aided steel was developed. The addition Cu Nb can effectively promote deformation, is due characteristic alternating combination soft hard phases. contrast, has a more significant effect on martensite hardening, which be attributed smaller transformation start temperature (Ms). multi-phase structure precipitation strengthening, lead...
Recent investigations indicate that high entropy alloys (HEAs) may exhibit distinctive thermal characteristics compared to traditional alloys. Through a blend of experiments and atomistic simulations, this study showcases the lattice conductivity highly distorted single-phase B2 alloy with composition (CoNi)50(TiZrHf)50 is as low less than 1 W/(m·K), akin ceramics like alumina, remains stable across temperatures from 300 900 K. This remarkable behavior attributed significant distortion...
In this study, a cobalt-free Fe-18Ni-5Mo-2Cr-1.2Ti-0.6V maraging steel with dual-phase, which overcome the strength and ductility trade-off was investigated. This can be attributed to combination of nano-scaled precipitates within martensite lath stress-induced martensitic transformation. Micro-deformation behavior investigated by in-situ synchrotron X-ray diffraction. It found that density dislocation decreased sharply in alloy without precipitates, leading massive transformation, is, γ...
In this study, a cobalt-free Fe-18Ni-5Mo-2Cr-1Ti-0.6Al-0.4V-0.2Si maraging steel with dual-phase, high strength and good ductility was developed. The owned the combination of nanoscale precipitates within martensite lath stress-induced martensitic transformation. deformation behavior investigated by in-situ synchrotron X-ray diffraction. It found that dislocation density decreased sharply in solid solution-treated alloy without formation precipitates, leading to massive γ -austenite phase...
Maraging hardening and transformation-induced plastic deformation (TRIP) are crucial to the mechanical properties of steels. In this study, a maraging-TRIP-aided steel was developed. It found that prior austenite formed continuous network surrounding bainite martensite. The high-density dislocations in martensite increased hardness. addition, metastable phase transformed into phase, heterostructure with alternating distribution bainite/austenite during deformation. refinement grains...
<p indent="0mm">To improve the mechanical properties of maraging steel, it is important to control precipitation and morphology high-density nano-scale precipitates. In this work, Co-free steel with a dual-phase structure was prepared by composition design an optimized heat treatment process. The results showed that semi-coherent η-Ni<sub>3</sub>Ti coherent B2-NiAl ordered phases were precipitated in content 1.5 wt% Al. had good high ultimate tensile strength <sc>2065 MPa</sc> elongation...
In this study, a cobalt-free Fe-18Ni-5Mo-2Cr-1.2Ti-0.4V maraging steel with high strength and good ductility was developed. The owned the combination of nanoscale precipitates within martensite lath stress-induced martensitic transformation. deformation behavior investigated by in-situ synchrotron X-ray diffraction. It found that dislocation density decreased sharply in as-solution-annealed without formation precipitates, leading to massive γ -austenite phase transformed into α- during...
Maraging hardening and transformation-induced plastic deformation (TRIP) are crucial to the mechanical properties of steels. In this study, maraging-TRIP-aided steel was developed by multi-alloying strategy. It found that prior austenite formed a continuous network surrounding bainite martensite. The high-density dislocations in martensite increased hardness. addition, metastable phase transformed into heterostructure with alternating distribution bainite/austenite during deformation....