Maraging-300: a structural and hyperfine study of steel aging

Lohmann, Ingrid Louise Pereira; Sarvezuk, P.W.C.; Ferreira, Rafael Franco; Ivashita, Flávio F.; Viegas, A.D.C.; Andrade, Ankilma do Nascimento; Paesano, Andrea

doi:10.1007/s10751-019-1566-y

Cited by 4 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Loading [MathJax]/jax/output/CommonHTML/jax.js after 5 s of microabrasive wear testing, the outermost layer thickness measures approximately 1,5 ± 0,2 µm and the innermost layer one is about 0,7 ± 0,1 µm [30].…”

Section: Resultsmentioning

confidence: 99%

Structural characterization of iron oxide grown on 18% Ni-Co-Mo-Ti ferrous base alloy aged under superheated steam atmosphere

Cardoso

Igreja

Garcia

et al. 2021

Int J Adv Manuf Technol

Self Cite

View full text Add to dashboard Cite

18% Ni-Co-Mo-Ti Ferrous base alloys are special materials, widely used in the industry of isotopic enrichment after speci c annealing and aging thermal treatment. The desirable high mechanical properties can then be attained by adequate aging heat treatment, answering the structural materials speci cations required by defense applications in aerospace and nuclear engineering. For instance, the isotopic enrichment, in rocket engine envelope application, when associated with high temperature and chemical residues like acidic solutions, can induce corrosion and hydrogen embrittlement in martensite structures. To limit these corrosion and hydrogen embrittlement phenomena, an adherent and protective layer of iron oxides can be grown on the material surface by using adequate atmosphere during the aging treatment. Due to its application in strategic areas, the characterization of these oxide layers in maraging steels is of importance as well as the understanding of their growth kinetics. For this purpose, several techniques, such as Optical Microscopy (OM), Scanning Electron Microscopy (SEM), Glow Discharge Optical Emission Spectroscopy (GDOES), Microabrasive wear testing, Hardness, Grazing Incidence X-ray Diffraction (GIXRD) and X-ray Photoelectron Spectroscopy (XPS), have been performed for chemical and structural characterization of the oxide lms formed after vapor exposed thermal aging at 510°C . The oxide layer consists mostly in two sub-layers composed by magnetite (Fe 3 O 4 ) and an external layer of hematite (Fe 2 O 3 ). A thick interface between the oxide layer and the bulk is enriched in Ti and Mo, whereas the analyses of deep bulk material show an enriched area with Ni and Co. HighlightsSeveral techniques were applied for Maraging steel layers characterization.A new approach by calotest, nanohardness and X-ray quanti cation were employed.Layers characterization was analyzed and discussed in agreement with literature.The layers distinction was satisfactorily evaluated.

show abstract

Section: Resultsmentioning

confidence: 99%

Structural characterization of iron oxide grown on 18% Ni-Co-Mo-Ti ferrous base alloy aged under superheated steam atmosphere

Cardoso

Igreja

Garcia

et al. 2021

Int J Adv Manuf Technol

Self Cite

View full text Add to dashboard Cite

show abstract

“…7 presented the formation of two layers formed on the substrate. Following the V RUPETSOV and R MINCHEV method after 5 s of microabrasive wear testing, the outermost layer thickness measures approximately 1,5 ± 0,2 µm and the innermost layer one is about 0,7 ± 0,1 µm [30].…”

Section: Resultsmentioning

confidence: 99%

Structural Characterization of Iron Oxide Grown On 18% Ni-Co-Mo-Ti Ferrous Base Alloy Aged Under Superheated Steam Atmosphere

Cardoso

Igreja

Garcia

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

18% Ni-Co-Mo-Ti Ferrous base alloys are special materials, widely used in the industry of isotopic enrichment after specific annealing and aging thermal treatment. The desirable high mechanical properties can then be attained by adequate aging heat treatment, answering the structural materials specifications required by defense applications in aerospace and nuclear engineering. For instance, the isotopic enrichment, in rocket engine envelope application, when associated with high temperature and chemical residues like acidic solutions, can induce corrosion and hydrogen embrittlement in martensite structures. To limit these corrosion and hydrogen embrittlement phenomena, an adherent and protective layer of iron oxides can be grown on the material surface by using adequate atmosphere during the aging treatment. Due to its application in strategic areas, the characterization of these oxide layers in maraging steels is of importance as well as the understanding of their growth kinetics. For this purpose, several techniques, such as Optical Microscopy (OM), Scanning Electron Microscopy (SEM), Glow Discharge Optical Emission Spectroscopy (GDOES), Microabrasive wear testing, Hardness, Grazing Incidence X-ray Diffraction (GIXRD) and X-ray Photoelectron Spectroscopy (XPS), have been performed for chemical and structural characterization of the oxide films formed after vapor exposed thermal aging at 510°C . The oxide layer consists mostly in two sub-layers composed by magnetite (Fe3O4) and an external layer of hematite (Fe2O3). A thick interface between the oxide layer and the bulk is enriched in Ti and Mo, whereas the analyses of deep bulk material show an enriched area with Ni and Co.

show abstract

Effect of layer thickness and laser emission mode on the microstructure of an additive manufactured maraging steel

Santana

Eres-Castellanos

Jiménez

et al. 2023

Journal of Materials Research and Technology

View full text Add to dashboard Cite

Maraging-300: a structural and hyperfine study of steel aging

Cited by 4 publications

References 13 publications

Structural characterization of iron oxide grown on 18% Ni-Co-Mo-Ti ferrous base alloy aged under superheated steam atmosphere

Structural characterization of iron oxide grown on 18% Ni-Co-Mo-Ti ferrous base alloy aged under superheated steam atmosphere

Structural Characterization of Iron Oxide Grown On 18% Ni-Co-Mo-Ti Ferrous Base Alloy Aged Under Superheated Steam Atmosphere

Effect of layer thickness and laser emission mode on the microstructure of an additive manufactured maraging steel

Contact Info

Product

Resources

About