研究目的
To investigate the effect of Plasma Transfer Arc Cladding (PTAC) of 60%Ni30%CrB10%Fe filler powder on microstructure and tensile properties of Titanium Grade 2 and Ti 6Al-4V alloy dissimilar joint prepared by laser beam welding.
研究成果
PTAC coating improved the microstructure and mechanical properties of the dissimilar joint, enhancing corrosion resistance and tensile strength. The study demonstrated the effectiveness of PTAC in improving joint quality.
研究不足
The study focuses on specific welding parameters and materials, potentially limiting generalizability. The effect of varying parameters beyond the tested range is not explored.
1:Experimental Design and Method Selection:
Laser beam welding was used with parameters of 1300 W power, 200 mm/min welding speed, and 10 mm focus distance. PTAC was applied with NiCrBFe filler powder.
2:Sample Selection and Data Sources:
Titanium Grade 2 and Ti 6Al-4V alloy sheets of 2 mm thickness were used.
3:List of Experimental Equipment and Materials:
Robotics laser beam welding setup, Comsol software for failure analysis, SEM, TEM, EDS, and XRD for microstructure and mechanical properties analysis.
4:Experimental Procedures and Operational Workflow:
Butt joint configuration with root gap of 0.2 mm, argon gas for protection, and PTAC coating applied post-welding.
5:2 mm, argon gas for protection, and PTAC coating applied post-welding.
Data Analysis Methods:
5. Data Analysis Methods: Microstructure analysis via SEM, TEM, EDS, and XRD; mechanical properties analysis via tensile and bending tests.
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