Toward Unraveling the High Temperature Microstructure Processing Properties Relationship in a Ni‐Free High Nitrogen Bearing Duplex Stainless Steel

Khatami-Hamedani, H.; Zarei-Hanzaki, A.; Ghambari, Mohammad; Mohamadizadeh, Alireza; Jafari, R.; Moallemi, Mohammad

doi:10.1002/srin.201700532

Cited by 11 publications

(7 citation statements)

References 43 publications

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“…The misorientation angle/axes of the annealing twins are deviated from ideal coincidence (60°<111>). This was precisely assessed by Abedi et al and Khatami‐Hamedani et al during hot tensile tests of low density steel and hot compression tests of high nitrogen duplex stainless steel at various strain rates during, respectively.…”

Section: Resultsmentioning

confidence: 99%

The Correlation of Macrostructure, Microstructure, and Texture with Room Temperature Mechanical Properties of a Twinning‐Induced Plasticity Automotive Steel after Friction Stir Spot Welding/Processing

Barabi

Zarei-Hanzaki

Abedi

et al. 2018

steel research int.

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The microstructure and texture evolution of a commercialized twinning‐induced plasticity automotive steel during friction stir spot welding/processing are addressed. The welding is conducted at various rotational speeds of 1000, 1600, and 2500 rpm, considering effects of strain rate and heat input on microstructural evolution. Sub grains with low angle grain boundaries are mainly developed at the thermomechanically‐affected and stirred zones. At low rotational speed of 1000 rpm, continuous dynamic recrystallization occurred at the stirred zone, which eventually led to considerable grain refinement. At higher rotational speeds, dynamic recrystallization is also observed near the stirred zone. The static/dynamic microstructural evolution increased the extent of bimodality of the grain size distribution, and enhanced mechanical properties. The hook formation is hindered owning to the influence of the dynamic recrystallization on the material's flow during welding. Some fiber textures belonging to shear components are detected under low rotational speed. As deformation increased with rotational speed, shear texture further developed. Different types of shear textures of A‐Fiber and B/B¯ are observed at 1600 and 2500 rpm, respectively. The mechanical properties are explored in connection with macrostructure, microstructure, and texture evolutions.

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Section: Resultsmentioning

confidence: 99%

The Correlation of Macrostructure, Microstructure, and Texture with Room Temperature Mechanical Properties of a Twinning‐Induced Plasticity Automotive Steel after Friction Stir Spot Welding/Processing

Barabi

Zarei-Hanzaki

Abedi

et al. 2018

steel research int.

Self Cite

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“…[34][35][36]. The material would experience high amount of strain, strain rate and temperature, and the occurrence of any microstructure evolution (substructure development, grain refinement, phase transformation and second phase redistribution) or texture evolution, are highly probable [37][38][39][40][41]. In this respect, the current work also try to clarify the imperative role of microstructure and texture in improvement of the corrosion resistance, biocompatibility and invitro degradation behavior of the processed Ti-29Nb-13Ta-4.6Zr alloy nano-biocomposite.…”

Section: Introductionmentioning

confidence: 99%

Comparing the mechanical properties, microstructure, texture and in-vitro degradation behavior of TNTZ/nano-fluorapatite composite and TNTZ bioalloy

Rajabi

Zarei-Hanzaki

Abedi

et al. 2021

Journal of the Mechanical Behavior of Biomedical Materials

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The present study deals with (i) the fabrication of the composite surface layer of Ti-29Nb-13Ta-4.6Zr/ nano-fluorapatite through friction stir processing, (ii) clarifying the correlation of microstructure and texture with in-vitro degradation behavior and bioactivity of fabricated nanobiocomposite, and (iii) comparing the mechanical and functional properties of nano composite whit those obtained for TNTZ bio-alloy. The results indicated that increasing the number of deformation passes effectively refines the microstructure, leading to the average grain sizes of less than 5μm. The texture of the material was also evolved in the presence of the nano particles where the grains reorient along <111> direction in contrast to the <101>-oriented grains in the starting microstructure. In-vitro bioactivity of the processed samples was measured after being immersed in simulated body fluid solution for various duration up to 30 days. Enhanced corrosion resistance and bio-mineralization of nanocomposite surface layer was discussed relying on the occurrence of grain refinement, substructure development and evolution of texture components along <101> direction. Assessment of the mechanical properties of the fabricated composites and as-received material also indicated the positive effect of the applied processing route and the presence of nano particles.

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“…Due to the different phase component and grain size in DSS and ASS, there are significant differences in microstructure evolution and thermomechanical processing behavior between the two alloys. [ 27,34–36 ] As shown in Figure 1 , [ 37 ] the yield strength (YS) of 2205 DSS at room temperature is twice that of 304 ASS, whereas their high temperature strength is very close. These differences between 2205 DSS and 304 ASS increased the difficulty of parameter selection in their DFSW.…”

Section: Introductionmentioning

confidence: 99%

Dissimilar Friction Stir Welding of Austenitic and Duplex Stainless Steel: Effect of Material Position and Tool Offset

Wang

et al. 2020

steel research int.

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Dissimilar friction stir welding (FSW) of 2205 duplex stainless steel (2205 DSS) and 304 austenitic stainless steel (304 ASS) is carried out with various parameters. The effect of material position and tool offset on material flow and mixing, the microstructure, and the mechanical properties of joints are investigated, and the relationship between tool torque and material flow is determined. With tool offset to retreating side (RS), defect-free joints with proper material mixing are fabricated. When 304 ASS is placed on the advancing side (AS), the material mixing is better than is the case with the opposite material position, but results in a larger stirring zone (SZ) width. A large amount of mixed zone (MXZ) with a different phase ratio (γ-α) from both base metals (BMs) is formed in the defectfree joints due to the alloying element diffusion between the two steels and severe plastic deformation. Due to the dynamic recrystallization, the SZ of all joints has higher hardness than 304 BM. The defect-free dissimilar joints have higher tensile strength than 304 BM and good ductility.

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Toward Unraveling the High Temperature Microstructure Processing Properties Relationship in a Ni‐Free High Nitrogen Bearing Duplex Stainless Steel

Cited by 11 publications

References 43 publications

The Correlation of Macrostructure, Microstructure, and Texture with Room Temperature Mechanical Properties of a Twinning‐Induced Plasticity Automotive Steel after Friction Stir Spot Welding/Processing

The Correlation of Macrostructure, Microstructure, and Texture with Room Temperature Mechanical Properties of a Twinning‐Induced Plasticity Automotive Steel after Friction Stir Spot Welding/Processing

Comparing the mechanical properties, microstructure, texture and in-vitro degradation behavior of TNTZ/nano-fluorapatite composite and TNTZ bioalloy

Dissimilar Friction Stir Welding of Austenitic and Duplex Stainless Steel: Effect of Material Position and Tool Offset

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