Effects of Cu and Nb on martensite hardening and transformation-induced plastic deformation behavior of maraging TRIP-aided steel

Li, Hu; Liu, Yong; Liu, Bin; Zhao, Weijiang

doi:10.1016/j.jmrt.2023.04.035

Cited by 11 publications

(1 citation statement)

References 49 publications

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“…Maraging steels belong to the group of ultra-high mechanical strength steels. Their properties are achieved due to an aging heat treatment that allows the formation of nanometric precipitates (e.g., Ni 3 Ti, Ni 3 Mo, Ni 3 (Ti, Mo), Fe 7 Mo 6 , Fe 2 Ti, Fe 2 Mo and Fe 2 (Ti, Mo)) distributed along a martensitic matrix [1], as well as the TRIP (transformation-induced plasticity) effect [2]. In academic and industrial fields, the maraging steel class that has attracted the most attention is the one presenting 18% (wt.…”

Section: Introductionmentioning

confidence: 99%

Microstructural and mechanical characterization of additively manufactured parts of maraging 18Ni300M steel with water and gas atomized powders feedstock

Peinado,

Carvalho,

Jardini

et al. 2023

Int J Adv Manuf Technol

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The demand for manufacturing components with complex geometries, good mechanical properties, and material efficiency has surged across various industries, encompassing aerospace, military, nuclear, and naval sectors. Laser powder bed fusion (LPBF), as an additive manufacturing (AM) process, has emerged as a promising method for producing ultra-high mechanical strength alloys, like maraging 300 steel (18Ni300M). However, in numerous studies in the literature concerning the effects of processing parameters on the properties of 18Ni300M steel parts fabricated through LPBF, limited attention has been given to the influence that powder atomization methods may exert on the final properties of these parts. This article investigated the effect of gas atomization (GA) and water atomization (WA) processes on the microstructure of 18Ni300M steel powders and the mechanical properties, microstructure, and chemical composition of LPBF-produced parts. The results revealed significant distinctions in the morphology, aggregation degree, and particle size distribution between the GA and WA powders, which directly influenced the microstructure and affected the amount of defects in LPBF-produced parts. Despite the similar mechanical response found in the WA and GA specimens in the elastic region, the samples produced with the WA batch presented a brittle behavior with a ductility of only 4.06%, whereas the GA parts had an elastoplastic behavior with an elongation of 11.52%. The bulks from the WA batch produced in the LPBF process were compromised due to powder contamination with oxygen, which increased gas porosity and effected fragile oxide particles visible on the fracture surface.

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Section: Introductionmentioning

confidence: 99%

Microstructural and mechanical characterization of additively manufactured parts of maraging 18Ni300M steel with water and gas atomized powders feedstock

Peinado,

Carvalho,

Jardini

et al. 2023

Int J Adv Manuf Technol

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Tailoring the Mechanical Properties of Copper‐Added Transformation‐Induced Plasticity‐Aided Multiphase Steel by Thermomechanical Processing

Deldar,

Mirzadeh,

Habibi Parsa

2023

steel research int.

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The microstructure and mechanical properties of a low‐alloy Cu‐bearing transformation‐induced plasticity (TRIP) steel and their dependence on the processing history were investigated in the present work. The distributions of the retained austenite and bainite were found to be dependent on the initial cold‐rolled microstructure, which can be tailored by the preceding hot rolling route (unidirectional/cross rolling) and the subsequent cooling rate (furnace/air cooling). Mechanical properties and TRIP effect strongly depended on the initial microstructure, where the air cooled sheet showed remarkable mechanical properties; while the cross rolled sheet showed isotropic properties. The addition of copper resulted in an increase in the amount of the retained austenite, enhancement of strength‐ductility balance, and improvement of the hardening behavior of TRIP‐assisted high‐performance steel.This article is protected by copyright. All rights reserved.

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Bioinspired fibrous microstructure breaks strength and toughness trade-off in plain carbon steel

Fan

Yang

Liu

et al. 2023

Journal of Materials Research and Technology

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Effects of Cu and Nb on martensite hardening and transformation-induced plastic deformation behavior of maraging TRIP-aided steel

Cited by 11 publications

References 49 publications

Microstructural and mechanical characterization of additively manufactured parts of maraging 18Ni300M steel with water and gas atomized powders feedstock

Microstructural and mechanical characterization of additively manufactured parts of maraging 18Ni300M steel with water and gas atomized powders feedstock

Tailoring the Mechanical Properties of Copper‐Added Transformation‐Induced Plasticity‐Aided Multiphase Steel by Thermomechanical Processing

Bioinspired fibrous microstructure breaks strength and toughness trade-off in plain carbon steel

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