Fatigue Behavior of Additively Manufactured Stainless Steel 316L

Avanzini, Andrea

doi:10.3390/ma16010065

Cited by 17 publications

(4 citation statements)

References 100 publications

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“…This is because the mechanical properties of C17200 alloy are decreased at high temperatures, and the thermal fatigue in the metal promotes the initiation of cracks. High temperature weakened the inter-grain force, accelerated the generation of fatigue speckles, significantly increased the crack propagation rate, and weakened the fatigue strength of the material [ 35 ]. Based on the above analysis, it can be seen that the mechanical properties and fatigue properties of C17200 alloy are decreased slightly when the test temperature below 350 °C, and the mechanical properties and fatigue properties are decreased severely when the test temperature reaches 450 °C.…”

Section: Resultsmentioning

confidence: 99%

Rotating Bending Fatigue Behaviors of C17200 Beryllium Copper Alloy at High Temperatures

et al. 2023

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The purpose of this paper is to investigate the fatigue properties of C17200 alloy under the condition of quenching aging heat treatment at high temperatures, and to provide a design reference for its application in a certain temperature range. For this purpose, the tensile and rotary bending fatigue (RBF) tests were carried out at different temperatures (25 °C, 150 °C, 350 °C, and 450 °C). The tensile strength was obtained, and relationships between the applied bending stress levels and the number of fatigue fracture cycles were fitted to the stress-life (S-N) curves, and the related equations were determined. The fractured surfaces were observed and analyzed by a scanning electron microscopy (SEM). The results show that the RBF fatigue performance of C17200 alloy specimens is decreased with the increase in test temperature. When the temperature is below 350 °C, the performance degradation amplitudes of mechanical properties and RBF fatigue resistance are at a low level. However, compared to the RBF fatigue strength of 1 × 107 cycles at 25 °C, it is decreased by 38.4% when the temperature reaches 450 °C. It is found that the fatigue failure type of C17200 alloy belongs to surface defect initiation. Below 350 °C, the surface roughness of the fatigue fracture is higher, which is similar to the brittle fracture, so the boundary of the fracture regions is not obvious. At 450 °C, due to the further increase in temperature, oxidation occurs on the fracture surface, and the boundary of typical fatigue zone is obvious.

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Section: Resultsmentioning

confidence: 99%

Rotating Bending Fatigue Behaviors of C17200 Beryllium Copper Alloy at High Temperatures

et al. 2023

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“…Table 1 reports the most used AM technologies. With particular reference to Metals Additive Manufacturing (MAM), one of the most studied and used materials is the austenitic steel AISI 316L, as demonstrated by the extensive scientific literature [64][65][66][67][68]. The extensive use of this steel for additive manufacturing is due to several factors, such as the high thermal conductivity of AISI 316L, which favors dissipating heat generated during the printing process, preventing excessive thermal gradients, and minimizing thermal stresses.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of AISI 316L Stainless Steel: A Review

D’Andrea

2023

Metals

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Additive manufacturing (AM) represents the present and the future of manufacturing production, thanks to a new design paradigm that allows the customization of components based on the needs of the final application, all framed in a perspective of sustainable and on-demand production. It has become an increasingly popular method for manufacturing complex and custom parts, especially those made from metallic materials, such as AISI 316L. AISI 316L is a type of austenitic steel widely used in industries such as aerospace, medical, automotive, and marine due to its excellent corrosion resistance and high strength. Thanks to its physico-chemical properties, AISI 316L stainless steel is one of the most used metals for AM. In this paper, a critical review of printing technologies, microstructural defects, mechanical properties, as well as industrial applications of AISI 316L are presented based on the state of the art. Furthermore, the main challenges with AM AISI 316L techniques are discussed, such as the influence of printing parameters, surface quality, and other common problems identified in the literature. Overall, this paper provides a comprehensive overview of AISI 316L AM techniques, challenges, and future research directions.

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“…Steel materials, particularly austenitic stainless steels such as AISI 316L, which are readily available and exhibit excellent corrosion resistance, are actively used for additive manufacturing. The metallurgical and mechanical properties of additively manufactured AISI 316L stainless steels have been extensively studied [7][8][9][10][11][12][13]. Additive manufacturing via laser metal deposition has been used to improve the wear resistance of stainless-steel materials via compositing with tungsten carbide particles [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Effects of Solid-Solution Carbon and Eutectic Carbides in AISI 316L Steel-Based Tungsten Carbide Composites on Plasma Carburizing and Nitriding

Adachi

Yamaguchi

Tanaka

et al. 2023

Metals

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AISI 316L stainless-steel-based tungsten carbide composite layers fabricated via laser metal deposition are used for additive manufacturing. Heat treatment practices such as low-temperature plasma carburizing and nitriding improve the hardness and corrosion resistance of austenitic stainless steels via the formation of expanded austenite, known as the S phase. In the present study, practices to enhance the hardness and corrosion resistances of the stainless-steel parts in the composite layers have been investigated, including single plasma carburizing for 4 h and continuous plasma nitriding for 3.5 h following carburizing for 0.5 h at 400 and 450 °C. The as-deposited composite layers contain solid-solution carbon and eutectic carbides owing to the thermal decomposition of tungsten carbide during the laser metal deposition. The eutectic carbides inhibit carbon diffusion, whereas the original solid-solution carbon contributes to the formation of the S phase, resulting in a thick S phase layer. Both the single carburizing and continuous processes are effective in improving the Vickers surface hardness and corrosion resistance of the composite layers despite containing the solid-solution carbon and eutectic carbides.

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Fatigue Behavior of Additively Manufactured Stainless Steel 316L

Cited by 17 publications

References 100 publications

Rotating Bending Fatigue Behaviors of C17200 Beryllium Copper Alloy at High Temperatures

Rotating Bending Fatigue Behaviors of C17200 Beryllium Copper Alloy at High Temperatures

Additive Manufacturing of AISI 316L Stainless Steel: A Review

Effects of Solid-Solution Carbon and Eutectic Carbides in AISI 316L Steel-Based Tungsten Carbide Composites on Plasma Carburizing and Nitriding

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