Laser powder bed fusion of 17–4 PH stainless steel: A comparative study on the effect of heat treatment on the microstructure evolution and mechanical properties

Sabooni, S.; Chabok, Ali; Feng, Shaochuan; Blaauw, H. S.; Pijper, Thomas C.; Yang, Hua; Pei, Yutao

doi:10.1016/j.addma.2021.102176

Cited by 27 publications

(21 citation statements)

References 33 publications

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“…The optimization of melting parameters including scanning speed and energy density are of great importance to obtaining valuable parts. S. Sabooni et al [ 158 ] have explored the influence of post-heat treatment on the microstructure evolution and mechanical properties in L-PBF of PH17-4 steel from two different feedstock powders. The results displayed that the full martensite phase and ferritic microstructure were observed in Figure 11 , which mainly depends on the chemical composition of powders.…”

Section: Effects Of Different Preparation Methods On Microstructure A...mentioning

confidence: 99%

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Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

et al. 2022

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Precipitation hardening stainless steels have attracted extensive interest due to their distinguished mechanical properties. However, it is necessary to further uncover the internal quantitative relationship from the traditional standpoint based on the statistical perspective. In this review, we summarize the latest research progress on the relationships among the composition, microstructure, and properties of precipitation hardened stainless steels. First, the influence of general chemical composition and its fluctuation on the microstructure and properties of PHSS are elaborated. Then, the microstructure and properties under a typical heat treatment regime are discussed, including the precipitation of B2-NiAl particles, Cu-rich clusters, Ni3Ti precipitates, and other co-existing precipitates in PHSS and the hierarchical microstructural features are presented. Next, the microstructure and properties after the selective laser melting fabricating process which act as an emerging technology compared to conventional manufacturing techniques are also enlightened. Thereafter, the development of multi-scale simulation and machine learning (ML) in material design is illustrated with typical examples and the great concerns in PHSS research are presented, with a focus on the precipitation techniques, effect of composition, and microstructure. Finally, promising directions for future precipitation hardening stainless steel development combined with multi-scale simulation and ML methods are prospected, offering extensive insight into the innovation of novel precipitation hardening stainless steels.

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Section: Effects Of Different Preparation Methods On Microstructure A...mentioning

confidence: 99%

“… KAM results of the as-built PH17-4 PHSS with ( a ) martensitic microstructure and ( b ) ferritic microstructure [ 158 ]. (Adapted from Ref.…”

Section: Figurementioning

confidence: 99%

Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

et al. 2022

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“…17-4PH is widely used in different industries such as chemical, medical, aerospace and metal forming to mention a few. [8][9][10] Several studies have been conducted to characterise the effect of processing conditions, powder characteristics and heat treatment on the evolving or resultant properties of this stainless steel alloy. [11][12][13][14][15][16][17][18][19][20][21][22][23][24] Most of the available studies are mostly focused on laser powder bed fusion technology.…”

Section: Introductionmentioning

confidence: 99%

Surface finish, microhardness and microstructure of laser metal deposited 17-4PH stainless steel

Bayode

2022

S. Afr. J. Sci.

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Laser metal deposition is a metal-based additive manufacturing technology. It is a very sensitive and complex process because of the different process parameters involved and the interrelations between these parameters. A thorough understanding of the underlying physics of the process is essential in developing a comprehensive database of the properties of materials processed with this technology. The main objective of this study was to investigate the effect of laser power on a laser-deposited 17-4 precipitation hardenable stainless steel alloy. The as-built microstructure, phase composition, microhardness and surface finish were analysed. The results show that a defect-free sample with good metallurgical bonding and minimal dilution can be produced using high laser power in the range 1400–2600 W and a scanning speed of 0.6 m/s. The microstructure in the clad layer was dominated by martensite and an improvement in surface finish and maximum hardness was observed with increased laser power.

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“…In the second, Tillmann et al fabricated the 17-4PH steel substrate using BJP to produce complex shaped components for the tribological applications [245]. On the other hand, the excellent weldability of the 17-4 PH alloy makes it amenable to AM using techniques such as the LB-PBF [246][247][248][249][250][251][252] and DED [253][254][255][256]. Majority of the work reported hitherto has been on the process -microstructure -property relationships in the 17-4 PH steel fabricated by LB-PBF [247,[257][258][259].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the excellent weldability of the 17-4 PH alloy makes it amenable to AM using techniques such as the LB-PBF [246][247][248][249][250][251][252] and DED [253][254][255][256]. Majority of the work reported hitherto has been on the process -microstructure -property relationships in the 17-4 PH steel fabricated by LB-PBF [247,[257][258][259]. However, microstructural-and hence mechanical property-anisotropy is a predominant issue in alloys manufactured using LB-PBF [260,261].…”

Section: Introductionmentioning

confidence: 99%

Enhancing tensile and fatigue properties of additively manufactured alloys by post-processing heat treatment

Jayaraj¹

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 Dr. Punit Kumar provided invaluable inputs on the analysis of experiment results.  Jayaraj performed the experiments and analysis on specimens with respect to porosity, microstructural phases, composition, tensile and fatigue properties, and post-mortem analysis from fractography and EBSD  Dr. Shihao Li performed TEM imaging and analysis on cellular structure  Dr. Yakai Zhao performed nano-indentation tests at room and high temperature.

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Laser powder bed fusion of 17–4 PH stainless steel: A comparative study on the effect of heat treatment on the microstructure evolution and mechanical properties

Cited by 27 publications

References 33 publications

Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

Recent Advances on Composition-Microstructure-Properties Relationships of Precipitation Hardening Stainless Steel

Surface finish, microhardness and microstructure of laser metal deposited 17-4PH stainless steel

Enhancing tensile and fatigue properties of additively manufactured alloys by post-processing heat treatment

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