ArticleMaterials (Basel, Switzerland)2021
Study on Microstructural Characterization, Mechanical Properties and Residual Stress of GTAW Dissimilar Joints of P91 and P22 Steels.
Article in Materials (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Microstructural characterization and creep response of Gleeble-simulated heat-affected zone of electron beam welded Grade 91 steel.Scientific reports · 2026Article
- Recent advances in nanoadsorbents for the efficient removal of nickel ions from aqueous solutions.Biodegradation · 2026Review
- Residual Stress Evolution in Low-Alloyed Steel at Three Different Length Scales.Materials (Basel, Switzerland) · 2023Article
- Article
- Numerical Simulation and Experimental Study on the TIG (A-TIG) Welding of Dissimilar Magnesium Alloys.Materials (Basel, Switzerland) · 2022Article
- Underwater Processing of Materials.Materials (Basel, Switzerland) · 2022Article
- Residual Stress Induced by Addition of Nanosized TiC in Titanium Matrix Composite.Materials (Basel, Switzerland) · 2022Article
- Numerical Simulation and Experimental Verification of Residual Stress in the Welded Joints of Weldolet-Branch Pipe Dissimilar Steels.Materials (Basel, Switzerland) · 2022Article
- Analysis of Tube-to-Tubesheet Welding in Carbon Steel Heat Exchangers of a Double Plate Header Box.Materials (Basel, Switzerland) · 2021Article
- Effect of Pin Shape on Thermal History of Aluminum-Steel Friction Stir Welded Joint: Computational Fluid Dynamic Modeling and Validation.Materials (Basel, Switzerland) · 2021Article
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8 authors.
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Abstract
This article deals with the dissimilar joining of two different grade Cr-Mo steel (2.25Cr-1Mo: P22 and modified 9Cr-1Mo: P91) for power plant application. The dissimilar butt-welded joint was produced for conventional V groove design by using the gas tungsten arc welding (GTAW) process with the application of an ERNiCrMo-3 Ni-based super alloy filler. A microstructure characterization was performed to measure the inhomogeneity in the microstructure and element diffusion across the interface in a welded joint. The experiments were also performed to evaluate the mechanical properties of the dissimilar welded joint in as-welded (AW) and post-weld heat treatment (PWHT) conditions. An acceptable level of the mechanical properties was obtained for the AW joint. After PWHT, a significant level of the element diffusion across the interface of the weld metal and P22 steel was observed, resulting in heterogeneity in microstructure near the interface, which was also supported by the hardness variation. Inhomogeneity in mechanical properties (impact strength and hardness) was measured across the weldments for the AW joint and was reduced after the PWHT. The tensile test results indicate an acceptable level of tensile properties for the welded joint in both AW and PWHT conditions and failure was noticed in the weak region of the P22 steel instead of the weld metal.
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