Austenite in Nanostructured Maraging Steel

Sukhikh, A. A.; Makhneva, T. M.; Дементьев, В. Б.

doi:10.1134/s2075113319040415

Cited by 9 publications

(6 citation statements)

References 4 publications

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“…At the beginning of the test, when the sample is stretched, the deformation is reversible [9]. That is, if you stop stretching to a certain point, the sample under study will return to its previous state due to elastic deformation [10].…”

Section: Theoretical Frameworkmentioning

confidence: 99%

Tensile testing of metal samples

Lapshova¹

2020

IJETER

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Metals and alloys are part of structural materials. The quality of finished structures depends on their strength, elasticity, plasticity and hardness. Therefore, there is a need to check the metal for tension. The article presents the experience of testing metal samples for tensile strength. Several samples from various metals were tested. During the study, the behavior of the sample was observed. The study establishes the following main strength characteristics of the material under study: tensile strength, yield strength, elongation. In practice, the strength properties were determined by the primary stretching curves in the coordinates "load-absolute elongation".

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Section: Theoretical Frameworkmentioning

confidence: 99%

Tensile testing of metal samples

Lapshova¹

2020

IJETER

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“…The greater the degree of deformation, the stronger the coercive force increases and the lower the magnetic permeability and density of the metal [9]. Despite the fact that the plasticity is reduced, the use of a rivet in increasing the strength of the metal is still widely used [10].…”

Section: Analysis Of the Effect Of Cold Plastic Deformation And Subsequent Heating On The Properties Of Metalmentioning

confidence: 99%

Analysis of the effect of cold plastic deformation and subsequent heating on the properties of metal

Vaganova¹

2020

IJETER

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Metal is used in many branches of domestic industry, so increasing its strength becomes an urgent topic for the development of various industries where metal is an integral element. An effective way to increase the strength of the metal is cold plastic deformation and heating. This article presents the experience of studying the influence of cold plastic deformation and heating on the properties of metal. With the help of a rivet, the hardness and ultimate strength can be increased by 1.5-3 times, and the yield strength by 3-7 times. The greater the degree of deformation, the stronger the coercive force increases and the lower the magnetic permeability and density of the metal. The use of plastic deformation is an effective way to strengthen the finished metal product.

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“…The 640°C for 2 hours condition led to 13% of registered austenite but with coarse precipitates of 130 nm and high interparticle spacing, which triggers a reduction of the potential mechanical strength improvement from the Orowan mechanism (Ref 4). Tempering at 600°C, followed by solubilization at 820°C for a short time (<10 min), and subsequent aging at the low temperature of, has been proved to be is useful to dissolve precipitates and maintain part of reverted austenite (Ref [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Combined Tempering and Aging in the Austenite Reversion, Precipitation, and Tensile Properties of an Additively Manufactured Maraging 300 Steel

Conde

Escobar

Rodrı́guez

et al. 2021

J. of Materi Eng and Perform

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Maraging 300 is an ultrahigh strength steel with significant alloy addition, resulting in a martensitic matrix hardened by precipitation through aging treatment. In these steels, intercritical tempering can provide reverted austenite and precipitation of intermetallic products, increasing the ductility of additively manufactured parts due to austenite presence. Studies deal with postprocessing of additive manufactured parts of maraging steel; however, few focused on phases evolution during the heat treatments and their mechanical response. In the present work, a maraging 300 steel processed by laser-based powder-bed fusion was studied with a focus on microstructural and mechanical properties after applying several postprocessing heat treatments. Tensile tests assessed the mechanical properties, and the microstructure was analyzed by scanning and transmission electron microscopy. A synchrotron beamline with x-ray diffraction was used to conduct in situ measurements of martensite and austenite evolution. The in situ phase evolution revealed that isothermal heat treatments were efficient in promoting martensite-to-austenite reversion. Likewise, the presence of austenite significantly enhanced the ductility, however, at some mechanical strength expense.

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Austenite in Nanostructured Maraging Steel

Cited by 9 publications

References 4 publications

Tensile testing of metal samples

Tensile testing of metal samples

Analysis of the effect of cold plastic deformation and subsequent heating on the properties of metal

Effect of Combined Tempering and Aging in the Austenite Reversion, Precipitation, and Tensile Properties of an Additively Manufactured Maraging 300 Steel

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