Effects of powder characteristics and processing conditions on the corrosion performance of 17-4 PH stainless steel fabricated by laser-powder bed fusion

Irrinki, Harish; Harper, Talia; Badwe, Sunil; Stitzel, Jason; Gülsoy, H. Özkan; Gupta, Gautam; Atre, Sundar V.

doi:10.1007/s40964-018-0048-0

Cited by 41 publications

(26 citation statements)

References 29 publications

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“…Mechanical and corrosion properties in previous research studies performed by our group showed that 17-4 PH stainless can be used as a starting material for the fabrication of injection mold tools [39]. The detailed information about the powder characterization can be found in our previous papers [39][40][41][42].…”

Section: Methodsmentioning

confidence: 99%

Tooling for injection molding using laser-powder bed fusion.

Buxani¹

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Section: Methodsmentioning

confidence: 99%

Tooling for injection molding using laser-powder bed fusion.

Buxani¹

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“…The corrosion current ( ), corrosion potential ( ) and cathode and anode slope were measured using a standard extrapolation method to calculate the polarization resistance and corrosion rate [57,58] and tabulated in Table 5 using the equations listed below:…”

Section: Microstructural Analysismentioning

confidence: 99%

“…The data was used to find the corrosion current ( ) and corrosion potential ( ) by a standard extrapolation method known as the Tafel plot. The Tafel constants and , representing the anodic and cathodic slopes were used to calculate the polarization resistance and corrosion rate using previously reported equations [57,58].…”

Section: Xrdmentioning

confidence: 99%

“…The corrosion current (I corr ), corrosion potential (E corr ) and cathode and anode slope were measured using a standard extrapolation method to calculate the polarization resistance and corrosion rate [57,58] and tabulated in Table 5.4 using the equations listed below: where, ρ is the Archimedes density of the material, A is the exposed surface area to corrosion, k is a constant (3.272 m/year) and EW is the equivalent weight of the material.…”

Section: Corrosion Propertiesmentioning

confidence: 99%

“…The curve was used to determine the corrosion current (), corrosion potential ( ) and cathode and anode slope by the Tafel method. Then, the polarization resistance and corrosion rate can be calculated based on previously reported methods[57,58]. The equations used are listed below Linear sweep voltammetry (LSV) curves for as-printed and heat-treated L-PBF 420 stainless steel varying layer thickness at 10, 20 and 30 µm in aerated aqueous solution containing 3.5 wt% of NaCl.…”

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confidence: 99%

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Process-property-microstructure relationships in laser-powder bed fusion of 420 stainless steel.

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Advancement in Laser‐Based Directed Energy Deposition of Stainless Steel on Microstructural Changes in Mechanical and Wear Properties

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Laser additive manufacturing (LAM) has witnessed significant growth in recent years, particularly in the processing of stainless steel due to its corrosion resistance and favorable mechanical properties. In LAM, laser‐directed energy deposition (L‐DED) process offers unique advantages, allowing for the production of large and intricate components with high material utilization and reduced material wastage. Despite its numerous advantages, challenges such as controlling heat input, achieving precise layering, and minimizing residual stresses need to be addressed. The importance of understanding these challenges and mitigation of it, is one of major concern of L‐DED‐processed stainless steel parts. Existing review on metal additive manufacturing has primarily focused on tool steel and stainless steels (austenitic) with an emphasis on process parameter optimization and their effects on deposited part. However, there is a critical gap in understanding how the process parameters impact the evolution of microstructure during deposition, subsequently influencing mechanical and wear properties. Therefore, this review aims to fill that gap by conducting a comprehensive study on L‐DED processed especially 15‐5 precipitation‐hardened and stainless steel (SS) 316L, focusing on microstructural characteristics, texture evolution, microhardness variation, and their influence on mechanical properties and wear resistance. The significance of this review lies in providing valuable insights into the process structure–property relationships of L‐DED processed stainless steel especially in precipitation‐hardened and austenitic grade steel.

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Effects of powder characteristics and processing conditions on the corrosion performance of 17-4 PH stainless steel fabricated by laser-powder bed fusion

Cited by 41 publications

References 29 publications

Tooling for injection molding using laser-powder bed fusion.

Tooling for injection molding using laser-powder bed fusion.

Process-property-microstructure relationships in laser-powder bed fusion of 420 stainless steel.

Advancement in Laser‐Based Directed Energy Deposition of Stainless Steel on Microstructural Changes in Mechanical and Wear Properties

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