Microstructural evolution of hydroformed Inconel 625 bellows

Pavithra, E.; Kumar, V.S. Senthil

doi:10.1016/j.jallcom.2016.02.011

Cited by 21 publications

(5 citation statements)

References 27 publications

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“…It mainly draws support from the solution strengthening of some elements in the Ni-Cr matrix, such as Mo and Nb, to obtain high-temperature strength, high creep resistance. It also exhibits excellent corrosion resistance in various environments and good weldability [20][21][22][23][24]. However, due to its high hardness, low thermal conductivity, and high work hardening rate, IN625 is considered as an alloy difficult to machining or subtractive processing [25].…”

Section: Introductionmentioning

confidence: 99%

A Review on Laser Powder Bed Fusion of Inconel 625 Nickel-Based Alloy

et al. 2019

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The Inconel 625 (IN625) superalloy has a high strength, excellent fatigue, and creep resistance under high-temperature and high-pressure conditions, and is one of the critical materials used for manufacturing high-temperature bearing parts of aeroengines. However, the poor workability of IN625 alloy prevents IN625 superalloy to be used in wider applications, especially in applications requiring high geometrical complexity. Laser powder bed fusion (LPBF) is a powerful additive manufacturing process which can produce metal parts with high geometrical complexity and freedom. This paper reviews the studies that have been done on LPBF of IN625 focusing on the microstructure, mechanical properties, the development of residual stresses, and the mechanism of defect formation. Mechanical properties such as microhardness, tensile properties, and fatigue properties reported by different researchers are systematically summarized and analyzed. Finally, the remaining issues and suggestions on future research on LPBF of IN625 alloy parts are put forward.

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Section: Introductionmentioning

confidence: 99%

A Review on Laser Powder Bed Fusion of Inconel 625 Nickel-Based Alloy

et al. 2019

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“…As a solid solution strengthening Ni-based superalloy using refractory elements including Nb and Mo, Inconel 625 possesses attractive yield strength, fatigue strength, oxidation and corrosion resistance in high temperature and aggressive environment [1][2][3][4]. As Inconel 625 normally displays better weldability than precipitation strengthening Ni-based superalloys [5], Inconel 625 is usually applied to repair damaged Ni-based superalloys gas turbine blades and vanes [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of heat treatment on microstructure evolution and mechanical properties of Inconel 625 with 0.4 wt% boron modification fabricated by gas tungsten arc deposition

Tian

Gontcharov²,

Gauvin

et al. 2017

Materials Science and Engineering: A

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“…In case of the first benchmark, if any the solid domain was modeled, its material was set as stainless steel instead of INCONEL alloy 625 (as it was in the reality). That was the reason the temperature-dependent material properties of the INCONEL alloy 625 ( [17]) have been specified to the partners in order to model the tube material in their follow-up CFD calculations.…”

Section: The Follow-up Calculationsmentioning

confidence: 99%

Summary on the Results of Two Computational Fluid Dynamic Benchmarks of Tube and Different Channel Geometries

Kiss

Churkin

Pilkhwal

et al. 2017

Journal of Nuclear Engineering and Radiation Science

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Two computational ﬂuid dynamic (CFD) benchmarks have been performed to assess the\ud prediction accuracy and sensitivity of CFD codes for heat transfer in different geome-\ud tries. The ﬁrst benchmark focused on heat transfer to water in a tube (ﬁrst benchmark),\ud while the second benchmark covered heat transfer to water in two different channel geo-\ud metries (second benchmark) at supercritical pressures. In the ﬁrst round with the experi-\ud mental data unknown to the participants (i.e., blind calculations), CFD calculations were\ud conducted with initial boundary conditions and simpler CFD models. After assessment\ud against measurements, the calculations were repeated with the reﬁned boundary condi-\ud tions and material properties in the follow-up calculation phase. Overall, the CFD codes\ud seem to be able to capture the general trend of heat transfer in the tube and the annular\ud channel but further improvements are required in order to enhance the prediction accu-\ud racy. Finally, sensitivity analyses on the numerical mesh and the boundary conditions\ud were performed. It was found that the prediction accuracy has not been improved with\ud the introduction of ﬁner meshes and the effect of mass ﬂux on the result is the strongest\ud among various investigated boundary conditions

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Microstructural evolution of hydroformed Inconel 625 bellows

Cited by 21 publications

References 27 publications

A Review on Laser Powder Bed Fusion of Inconel 625 Nickel-Based Alloy

A Review on Laser Powder Bed Fusion of Inconel 625 Nickel-Based Alloy

Effect of heat treatment on microstructure evolution and mechanical properties of Inconel 625 with 0.4 wt% boron modification fabricated by gas tungsten arc deposition

Summary on the Results of Two Computational Fluid Dynamic Benchmarks of Tube and Different Channel Geometries

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