A5067923625- Microstructure and Mechanical Properties of Steels
- Hydrogen embrittlement and corrosion behaviors in metals
- Metallurgy and Material Forming
- Welding Techniques and Residual Stresses
- Corrosion Behavior and Inhibition
- Metal Alloys Wear and Properties
- Microstructure and mechanical properties
- Magnetic Properties and Applications
- High-Temperature Coating Behaviors
- Metallic Glasses and Amorphous Alloys
- Metallurgical Processes and Thermodynamics
- High Entropy Alloys Studies
- Recycling and utilization of industrial and municipal waste in materials production
- Laser and Thermal Forming Techniques
- Bauxite Residue and Utilization
- Material Properties and Failure Mechanisms
- Advanced Welding Techniques Analysis
- Non-Destructive Testing Techniques
- Metal Forming Simulation Techniques
- Solidification and crystal growth phenomena
HBIS (China)
2021-2024
In this study, finite element (FE) simulation by the software Abaqus was relied on to investigate roll forming process of a wheel rim made an innovative dual-phase steel, i.e., DP590, after flash butt welding (FBW). simulation, FE model generated, including design dies for flaring, three-roll forming, and expansion, detailed key processing parameters based practical production selected DP590. Combined with microstructures properties weld zone (WZ) heat-affected zones (HAZs) FBW, distribution...
The phase formation-transition process and microstructure evolution of Fe–3%Si steel oxide layers were systematically studied during the high-temperature oxidation with oxidizing atmosphere when annealed at 1000–1240 °C for 200 min. micromorphology, mechanism crystal structure stability characterized discussed combining XRD, FESEM XPS technology. oxidized scale shows more complex multiple including single layer, double three increasing annealing temperature, which attributes to diffusion...
The hydrogen embrittlement (HE) behavior of a commercial QP980 steel is studied in this work. HE susceptibility results indicate that suffers from severe HE, and the fracture mode transforms ductile dimpling to brittle quasi-cleavage under attack hydrogen. EBSD show strain-induced martensite transformation can rarely occur at strain close strain, which mainly attributed high mechanical stability austenite. TKD-KAM analysis hydrogen-induced localization be mitigated by hydrogen-trapping...
The effects of Yttrium dosage and heat treatment process on the microstructure, inclusions, corrosion resistance marine steel, as well electrochemical parameters behavior were studied in this work. results show that mainly exists oxide sulfide. In optimal temperature (800°C-5h), movement grain boundaries is hindered by nailing action Y2O3, which makes size refined. can refine products improve adhesion ability between layer substrate, effectively steel. affect proportion structure α-FeOOH...
Based on the ordered phase effectively suppressed by rapid solidification technology, grain refinement concept using Cu is incorporated into soft magnetic materials. dosage not only could refine size with an average of 8.7 μm but also improve continuity and consistency Fe-6.5 wt % Si steel strip. It mainly attributes to Cu-rich particles precipitating at boundary, nailing boundaries movement inhibiting growth, then improving properties mechanical properties. The 1.5 sample exhibits excellent...
Abstract Defects would occur in the weld joint of wheel rims during post-flash butt welding (FBW) process suffering from poor plasticity, which will deteriorate quality and lifecycle finish products. Therefore, FBW 440CL high-strength-low-alloy (HSLA) steel was physically simulated influence flash parameters on joints systematically evaluated this study. The results showed that width heat affected zone increased with accumulated allowance (δ f ) while declined accelerated speed (v )....
In this study, the microstructure and performance of newly designed dual-phase steel (DP590) after joining by flash butt welding (FBW) for vehicle wheel rims was analysed compared two simulations, i.e., physical simulation numerical simulation, due to high acceptance these methodologies. Physical is regarded as a thermal-mechanical solution conducted Gleeble 3500 simulator which can distribute heat-affected zone (HAZ) obtained weld joint into four typical HAZs. These are coarse-grained HAZ,...
The Ultrahigh strength Q&P automotive steel, i.e. QP980, has a broad application prospect in lightweight due to its high and good plasticity. In this study, the range of heat input (30 ~ 40 J/mm) was selected by controlling laser power welding QP980 order investigate microstructure properties welded joint. At 30 J/mm, joint had acceptable penetration. weld widths were 417.93 mm, 582.02 mm 521.56 respectively. macroscopic morphology is hourglass type. microhardness hardening zone higher...
As an emerging material with excellent cryogenic performance and cost advantages, high manganese steel is a promising candidate for low-temperature storage tanks. However, these steels often suffer from severe plastic damage at intermediate temperatures (700∼900°C) during hot processing, hindering their widespread engineering application. In this study, by controlling the water toughening temperature, we have successfully controlled grain size of to around 10 μm, achieving minimum reduction...