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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MDPI AG
2022-03-01
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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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language | English |
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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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