Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion

Maraging steels are used in several industries, namely in the molds industry. The determination of fatigue crack propagation resistance in 18Ni300 maraging steel at the Paris regime is a vital issue for safety-relevant components, which are designed to work for a large number of loading cycles befor...

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Main Authors: Rui F. Fernandes, Joel de Jesus, Luís Borrego, Luís Vilhena, Amílcar Ramalho, José A. M. Ferreira
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/12/3/433
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author Rui F. Fernandes
Joel de Jesus
Luís Borrego
Luís Vilhena
Amílcar Ramalho
José A. M. Ferreira
author_facet Rui F. Fernandes
Joel de Jesus
Luís Borrego
Luís Vilhena
Amílcar Ramalho
José A. M. Ferreira
author_sort Rui F. Fernandes
collection DOAJ
description Maraging steels are used in several industries, namely in the molds industry. The determination of fatigue crack propagation resistance in 18Ni300 maraging steel at the Paris regime is a vital issue for safety-relevant components, which are designed to work for a large number of loading cycles before periodic inspections. The main goal of this work is to analyze the influence of the deposition plane angle and saline corrosion on fatigue crack growth in maraging steel samples produced by Laser Powder Bed Fusion (LPBF). The crack closure parameter was used in order to analyze the different fatigue crack growth behaviors, as well as the metallographic, hardness, fractography and corrosion/oxidation analysis. From this work, the main achievement was that the deposition plane angle did not reveal a notable influence in the fatigue crack growth behavior for the fatigue tests unsubmitted to saline corrosion. On the other hand, the fatigue crack growth behavior for the tests under saline corrosion showed an increase in the crack closure parameter due to the appearance of the crack closure induced by oxides, which reduced the fatigue crack growth speed. This phenomenon depends on the deposition plane angle, which controls the martensite amount and consequently controls the level of corrosion/oxidation.
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spelling doaj.art-2d32dfb5cee3410f86d8d895dc194c842023-11-30T21:31:06ZengMDPI AGMetals2075-47012022-03-0112343310.3390/met12030433Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed FusionRui F. Fernandes0Joel de Jesus1Luís Borrego2Luís Vilhena3Amílcar Ramalho4José A. M. Ferreira5Department of Mechanical Engineering, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), University Coimbra, 3004-516 Coimbra, PortugalDepartment of Mechanical Engineering, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), University Coimbra, 3004-516 Coimbra, PortugalDepartment of Mechanical Engineering, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), University Coimbra, 3004-516 Coimbra, PortugalDepartment of Mechanical Engineering, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), University Coimbra, 3004-516 Coimbra, PortugalDepartment of Mechanical Engineering, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), University Coimbra, 3004-516 Coimbra, PortugalDepartment of Mechanical Engineering, Centre for Mechanical Engineering, Materials and Processes (CEMMPRE), University Coimbra, 3004-516 Coimbra, PortugalMaraging steels are used in several industries, namely in the molds industry. The determination of fatigue crack propagation resistance in 18Ni300 maraging steel at the Paris regime is a vital issue for safety-relevant components, which are designed to work for a large number of loading cycles before periodic inspections. The main goal of this work is to analyze the influence of the deposition plane angle and saline corrosion on fatigue crack growth in maraging steel samples produced by Laser Powder Bed Fusion (LPBF). The crack closure parameter was used in order to analyze the different fatigue crack growth behaviors, as well as the metallographic, hardness, fractography and corrosion/oxidation analysis. From this work, the main achievement was that the deposition plane angle did not reveal a notable influence in the fatigue crack growth behavior for the fatigue tests unsubmitted to saline corrosion. On the other hand, the fatigue crack growth behavior for the tests under saline corrosion showed an increase in the crack closure parameter due to the appearance of the crack closure induced by oxides, which reduced the fatigue crack growth speed. This phenomenon depends on the deposition plane angle, which controls the martensite amount and consequently controls the level of corrosion/oxidation.https://www.mdpi.com/2075-4701/12/3/433fatigue crack growth18Ni300fatigue under corrosioncrack closureLPBFmaraging steel
spellingShingle Rui F. Fernandes
Joel de Jesus
Luís Borrego
Luís Vilhena
Amílcar Ramalho
José A. M. Ferreira
Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion
Metals
fatigue crack growth
18Ni300
fatigue under corrosion
crack closure
LPBF
maraging steel
title Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion
title_full Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion
title_fullStr Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion
title_full_unstemmed Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion
title_short Influence of Deposition Plane Angle and Saline Corrosion on Fatigue Crack Growth in Maraging Steel Components Produced by Laser Powder Bed Fusion
title_sort influence of deposition plane angle and saline corrosion on fatigue crack growth in maraging steel components produced by laser powder bed fusion
topic fatigue crack growth
18Ni300
fatigue under corrosion
crack closure
LPBF
maraging steel
url https://www.mdpi.com/2075-4701/12/3/433
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