Bulk Forming of Intermetallic Alloys

Semiatin, S. L.

doi:10.31399/asm.hb.v14a.a0004001

Cited by 5 publications

(6 citation statements)

References 44 publications

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“…Since most IN625 components are complex in shape, excessive machining combined with the hard-to-machine nature of alloy poses considerable difficulties during manufacturing. In addition, the formation of IN625 needs much higher power during forming processes (~4 times that of carbon steels) [21].…”

Section: Wrought Vs Additive Manufactured In625mentioning

confidence: 99%

A Review on Direct Laser Deposition of Inconel 625 and Inconel 625-Based Composites—Challenges and Prospects

Zafar

Emadinia

Conceição

et al. 2023

Metals

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The direct laser deposition (DLD) process has seen rigorous research in the past two decades due to its ability to directly manufacture products followed by minimal machining. The process input variables play a vital role in determining the properties achieved in the products manufactured by the DLD method. Inconel 625, a nickel-based superalloy with exceptional mechanical performance and corrosion resistance, has been used in critical applications within the aerospace, process, and marine industry. However, its poor machinability and higher load requirements for plastic deformation have been challenging for manufacturers. Therefore, many studies have explored the additive manufacturing of Inconel 625 to overcome these problems. This article focuses on the DLD of Inconel 625 and its composites, presenting the state-of-the-art, drawing a relation among laser processing parameters and resulting material properties, microstructure and phase evolution, and the high-temperature performance of DLD Inconel 625. The paper highlights the areas on which further studies may focus.

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Section: Wrought Vs Additive Manufactured In625mentioning

confidence: 99%

A Review on Direct Laser Deposition of Inconel 625 and Inconel 625-Based Composites—Challenges and Prospects

Zafar

Emadinia

Conceição

et al. 2023

Metals

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“…Cold work is defined by the plastic forming done below the recrystallisation temperature. Similarly, hot work is plastic forming done above the recrystallisation temperature [46]. When the steels are exposed to high temperatures, the phenomenon called grain growth may happen [47].…”

Section: Introductionmentioning

confidence: 99%

DL-EPR vs. LSV-KOH: from simple detection of deleterious phases to analysis of morphology and high accuracy on determination of sigma phase in UNS S32750 stainless steel

Sampaio

Furtado

Ignácio

et al. 2022

Corrosion Engineering, Science and Technology

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An optimised electrochemical technique, linear sweep voltammetry (LSV) in KOH solution (LSV-KOH) was confronted with the double loop electrochemical Potentiokinetic reactivation (DL-EPR) to verify which is the best technique to quantify deleterious phases (DP) in a UNS S32750 super duplex stainless steel. DL-EPR presented an error in determination of deleterious phases in the range of 6.9-100%. LSV-KOH show a better accuracy in quantification of deleterious phases volume fractions, the error range for LSV-KOH was 2.4-26.2%. When the morphology of sigma changes from lamellar to divorced, was observed modifications on LSV-KOH voltammograms. In specimens where lamellar morphology is present, the voltammograms show two peaks curve. Meanwhile, in specimens where occurred also divorced precipitation of sigma the voltammograms changes to a 3 peaks curve. This feature is due to the dissolution of sigma phase boundaries which has different compositions according to the form of sigma precipitation.

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“…where l1 is the final length after several operations and l0 is the initial length of the blank [3]. During experimental cold rolling on a quarto-type rolling mill [4], undesired significant rounding of the workpiece occurred. Thus, an additional bending deformation was introduced into the material, where one side is subjected to tensile stress and the other compressive.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the causes of undesirable curvature of the workpiece during longitudinal rolling using numerical simulation

Benesova

Burdová²,

Hajšman³

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Undesirable additional deformation was observed during the experimental cold rolling of steel. A simulation was performed in Deform software to clarify the causes. The influence of the unequal coefficient of friction, geometric inaccuracies of the rolls and the conveyor, and the situation when the rolls did not have the same diameter or rotated at different speeds were investigated. Simulations with different roll speeds corresponded best to reality. The simulation of the undesired curvature of the workpiece at different speeds of rotation of the rolls and 30% reduction was subsequently performed as an elastoplastic problem in order to determine the amount of springback and residual stress. Furthermore, the press straightening of the workpiece was simulated. Inhomogeneous and accidental deformation and residual stresses must be taken into account, especially when researching the effect of cold rolling on the mechanical properties and structure of the material.

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Bulk Forming of Intermetallic Alloys

Cited by 5 publications

References 44 publications

A Review on Direct Laser Deposition of Inconel 625 and Inconel 625-Based Composites—Challenges and Prospects

A Review on Direct Laser Deposition of Inconel 625 and Inconel 625-Based Composites—Challenges and Prospects

DL-EPR vs. LSV-KOH: from simple detection of deleterious phases to analysis of morphology and high accuracy on determination of sigma phase in UNS S32750 stainless steel

Analysis of the causes of undesirable curvature of the workpiece during longitudinal rolling using numerical simulation

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