A5042813753- High Entropy Alloys Studies
- Metal Alloys Wear and Properties
- Welding Techniques and Residual Stresses
- High Temperature Alloys and Creep
- Advanced materials and composites
- Fatigue and fracture mechanics
- Advanced Welding Techniques Analysis
- Microstructure and Mechanical Properties of Steels
- Aluminum Alloy Microstructure Properties
- Additive Manufacturing Materials and Processes
- Metal and Thin Film Mechanics
- High-Temperature Coating Behaviors
- Microstructure and mechanical properties
- Nuclear Materials and Properties
- Intermetallics and Advanced Alloy Properties
- Bauxite Residue and Utilization
- Extraction and Separation Processes
- Advanced Machining and Optimization Techniques
- Metallic Glasses and Amorphous Alloys
- Fire effects on concrete materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Aluminum Alloys Composites Properties
- Diamond and Carbon-based Materials Research
- Engineering and Environmental Studies
Dongfang Electric Corporation (China)
2019-2024
Dalian University of Technology
2016-2018
Changchun Institute of Technology
2013
Nanoindentation technique was adopted to study indentation size effects of physical-mechanical and creep performance with various depths (200–2000 nm) in GH901 utilising sharp spherical tip. Residual impressions both indenters pile-up patterns are discussed. Nanohardness, reduced modulus elastic recovery rates curves versus maximum displacement two tips obtained nanohardness discussed different models for Berkovich The data analysed separately by establishing stress–strain diagram. results...
The surface quality of components produced through milling particle reinforced aluminum matrix composites (PRAMCs) is one the most important factors influencing their practical performance. Therefore, increasing applications PRAMCs necessitate an in-depth understanding variation law integrity. This paper presents a systematic experimental research high speed Al/SiC/65p (65% volume fraction) by polycrystalline diamond tools (PCD). influences cutting parameters on roughness (Ra), residual...
High-temperature oxidation significantly impacts the service life of nickel-based alloys and steels, thermal cycling during welding may deteriorate their behavior. In this regard, a systematic analysis behavior TIG-welded 4715FC1 superalloy/12Cr heat-resistant steel joints at 560-650 oC revealed influence microstructural inhomogeneities. As time temperature increased, Cr2O3 oxide films blocky NiCr2O4 formed on base metal (BM) side. The average austenitic grain size heat-affected zone (HAZ)...
The microstructure evolution, elements diffusion and fracture behavior of the Stellite 6 weld overlay, deposited on 10Cr9Mo1VNbN (F91) steel by tungsten inert gas (TIG) cladding process, were investigated after long-time service. Obvious Fe occurred from fusion zone to resulting in evolution hardness increase coating, where hard Co–Fe phases, σ phases (Fe–Cr metallic compounds) Cr-rich carbides (Cr18.93Fe4.07C6) formed. Besides, width light zone, combined with increased significantly a...
In the present paper, fast pulse loading at high temperature (FPLHT) was conducted on Stellite 6 coatings with and without interlayer, exerted great effects microstructure, distribution of elements, mechanical property two coatings. The evident crack occurred in coating interlayer 400-cycle condition, which induced by diffusion Fe, formation reprecipitation carbides, coarsening grain, Laves phase. mechanisms Fe–Co phase revealed transmission electron microscopy, binary diagram, diagrammatic...
Creep rupture behavior of dissimilar weldments between FB2 and 30Cr1Mo1V heat-resistant steel by multipass welding at 783 K (510°C) under different stresses (260 to 420 MPa) was researched. The fitted creep exponent is 14.53, the 10,000 h extrapolating strength values predicted power law Larson-Miller parameter show good agreement with experimental data. samples exhibit a ductile fracture character in weld fusion zone, which has highly heterogeneous microstructure grains morphologies sizes...
A fantastic metallurgical bond of Stellite 6# Co-based alloy/FB2 steel joint was achieved using gas tungsten arc welding, and thermal cyclic tests were employed to investigate the initiation propagation cracks, microstructure evolution in weldments. Multiple cracks with length over 10 µm found after 300-time fatigue (TF), detail layer before TG investigated. Results showed that influenced by stress, coarsening eutectic carbides, generation laves phase. The attributed accumulation stress...
In the present paper, fast pulse loading at high temperature (FPLHT) was conducted on Stellite 6 coatings with and without interlayer, exerted great effects microstructure, distribution of elements, mechanical property two coatings. The evident crack occurred in coating interlayer 400-cycle condition, which induced by diffusion Fe, formation reprecipitation carbides, coarsening grain, Laves phase. mechanisms Fe-Co phase revealed transmission electron microscopy, binary diagram, diagrammatic...
This study analyzed the strengthening mechanisms and friction properties of Inconel 625 (I6) coatings fabricated by plasma transfer arc surfacing (PTA-surfacing) in ball-on-disc tests at room temperature (RT) 650 °C. Results showed that I6-RT exhibited worse tribological performance I6-650 °C demonstrated excellent performance. The average microhardness wear area (1.6826 ± 0.4059 GPa) was higher than (1.3900 0.1875 GPa). (1.2063 × 10-5 mm3/N·m) a lower rate (20.9740 mm3/N·m), for were mainly...
The influence of high temperature creep on local microstructural, physical and mechanical performance for different regions dissimilar welded joints two kinds martensitic heat resistant steels F92 Co3W2 was studied. rupture location is located in all testing specimens under conditions the fracture morphology indicates a transgranular plastic fracture. Creep damages like microcavities’ nucleation growth microstructural deterioration are observed, exhibits slower coarsening rate precipitates...