A relationship between the build and texture orientation in tensile loading of the additively manufactured maraging steels

Shamsdini, SeyedAmirReza; Pirgazi, Hadi; Ghoncheh, M.H.; Sanjari, Mehdi; Amirkhiz, Babak Shalchi; Kestens, Léo; Mohammadi, Mohsen

doi:10.1016/j.addma.2021.101954

Cited by 14 publications

(11 citation statements)

References 41 publications

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“…The types of nonmetallic inclusions found in this work agree well with the work of Shamsdini et al on L‐PBF 18Ni300. [ 29 ]…”

Section: Resultsmentioning

confidence: 99%

“…The types of nonmetallic inclusions found in this work agree well with the work of Shamsdini et al on L-PBF 18Ni300. [29] The nanosized spherical oxide inclusions are not as detrimental as the larger irregular ones to mechanical properties. [30] The morphology and size of oxides suggests that at certain regions of the melt pool oxides might have been formed as a result of dissolution and reprecipitation in the molten pool.…”

Section: Ab Partsmentioning

confidence: 99%

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Effects of Powder Atomization Route and Post‐Processing Thermal Treatments on the Mechanical Properties and Fatigue Resistance of Additively Manufactured 18Ni300 Maraging Steel

2021

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In this work the effect of microstructural homogenization and solution annealing prior to ageing on mechanical properties and fatigue resistance of 18Ni300 maraging steel parts processed by laser powder bed fusion (L‐PBF), using two different feedstock powders with different N and O contents is investigated. The static mechanical properties are not significantly affected by the selection of the different feedstock powders. This is ascribed to the extremely fine size of the nonmetallic inclusions, characteristic of L‐PBF process, even by using feedstock powders containing higher O and N contents. The tensile properties in both “directly aged,” and “homogenized, solution annealed and aged” samples are comparable. The tensile strength and ductility are slightly improved compared with the vacuum melted wrought counterparts. The dynamic mechanical properties are affected by the O and N contents of the powders. Heat treatment schedule imposed a significant effect on the fatigue properties. The obtained fatigue strength in directly aged samples is already comparable to the wrought counterparts. Fatigue resistance is improved by using feedstock powders with lower oxygen and nitrogen levels. Proper homogenization heat treatments prior to ageing led to a further improvement of fatigue strength because of the elimination of intercellular microsegregation.

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“…The types of nonmetallic inclusions found in this work agree well with the work of Shamsdini et al on L‐PBF 18Ni300. [ 29 ]…”

Section: Resultsmentioning

confidence: 99%

Section: Ab Partsmentioning

confidence: 99%

Effects of Powder Atomization Route and Post‐Processing Thermal Treatments on the Mechanical Properties and Fatigue Resistance of Additively Manufactured 18Ni300 Maraging Steel

2021

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“…For example, 18 Ni −250 (X2NiCoMo 18-8-5) and 18 Ni 200 are referred to as Fe Ni alloys [34]. A metal-based printing techniques in additive manufacturing can be classified as Selective Laser Melting, Electron Power Bed Fusion, Direct Energy Deposition and Laser Power Bed Fusion [35][36][37][38][39][40][41][42].…”

Section: Features Of Maraging Steelsmentioning

confidence: 99%

Influence of in-situ process parameters, post heat treatment effects on microstructure and defects of additively manufactured maraging steel by laser powder bed fusion—A comprehensive review

2024

Phys. Scr.

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The laser powder bed fusion LPBF method in additive manufacturing for metals have proven to produce a final product with higher relative density, when compare to other metal additive manufacturing processes like WAAM, DED and it takes less time even for complex designs. Despite the use of many metal-based raw materials in the LPBF method for production of products. Maraging steel (martensitic steel) is used in aeronautical and aircraft applications in view of its advantages including low weight, high strength, long-term corrosion resistance, low cost, availability, and recyclability. A research gap concerns the selection of design, dimension, accuracy, process parameters according to different grades, and unawareness of various maraging steels other than specific maraging steels. In this comprehensive review, the research paper provides information about on LPBF maraging steel grades, their process parameters and defects, microstructure characteristics, heat treatments, and the resulting mechanical characteristics changes. In addition, detailed information about the aging properties, fatigue, residual and future scope of different maraging steel grades in LPBF for various applications are discussed.

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“…Until now, the deformation behaviour and mechanism of conventionally produced M250 [ 18 ], M300 [ 19 ], and M350 [ 20 ] at high temperatures have been studied by compression tests. Despite extensive studies on the annealing process [ 21 ], selective laser melting parameters [ 22 ], and plastic deformation under quasi-static loading conditions of LPBF-MS [ 23 ], the intrinsic workability and microstructure control by high-temperature deformation of 18Ni-300 alloys produced by the LPBF technique have not been studied in detail.…”

Section: Introductionmentioning

confidence: 99%

Hot Deformation Behaviour of Additively Manufactured 18Ni-300 Maraging Steel

et al. 2023

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In this article, hot compression tests on the additively produced 18Ni-300 maraging steel 18Ni-300 were carried out on the Gleeble thermomechanical simulator in a wide temperature range (900–1200 °C) and at strain rates of 0.001 10 s−1. The samples were microstructurally analysed by light microscopy and scanning electron microscopy with electron backscatter diffraction (EBSD). This showed that dynamic recrystallization (DRX) was predominant in the samples tested at high strain rates and high deformation temperatures. In contrast, dynamic recovery (DRV) dominated at lower deformation temperatures and strain rates. Subsequently, the material constants were evaluated in a constitutive relationship using the experimental flow stress data. The results confirmed that the specimens are well hot workable and, compared with the literature data, have similar activation energy for hot working as the conventionally fabricated specimens. The findings presented in this research article can be used to develop novel hybrid postprocessing technologies that enable single-stage net shape forging/forming of AM maraging steel parts at reduced forming forces and with improved density and mechanical properties.

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A relationship between the build and texture orientation in tensile loading of the additively manufactured maraging steels

Cited by 14 publications

References 41 publications

Effects of Powder Atomization Route and Post‐Processing Thermal Treatments on the Mechanical Properties and Fatigue Resistance of Additively Manufactured 18Ni300 Maraging Steel

Effects of Powder Atomization Route and Post‐Processing Thermal Treatments on the Mechanical Properties and Fatigue Resistance of Additively Manufactured 18Ni300 Maraging Steel

Influence of in-situ process parameters, post heat treatment effects on microstructure and defects of additively manufactured maraging steel by laser powder bed fusion—A comprehensive review

Hot Deformation Behaviour of Additively Manufactured 18Ni-300 Maraging Steel

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