Fatigue behavior of additively manufactured 17-4 PH stainless steel: Synergistic effects of surface roughness and heat treatment

Shrestha, Rakish; Phan, Nam; Nezhadfar, P.D.

doi:10.1016/j.ijfatigue.2019.02.039

Cited by 124 publications

(55 citation statements)

References 44 publications

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“…In this case stress components can be calculated analytically. Considering the variable z as from the reference system of Figure 2, the contact stresses can be computed as in Equations (17)- (19) [27].…”

Section: From Contact Force To Contact Stressmentioning

confidence: 99%

“…On the basis of this, many researchers of different scientific backgrounds are actively working, studying the properties of stainless steels both from a chemical [11][12][13][14][15][16] and from a structural point of view [17][18][19][20][21][22]. The first category is a majority focus on studying how the properties of these materials vary according to their chemical composition and electrochemical behaviour, while the second category is mainly focus on the consequences generated by a possible mechanical degradation of the component surface.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

On the Evaluation of Surface Fatigue Strength of a Stainless-Steel Aeronautical Component

Cianetti

Ciotti

Palmieri

et al. 2019

Metals

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In this paper, a novel method for the evaluation of the surface fatigue strength of a stainless-steel component is proposed. The use of stainless steel is necessary indeed, whenever a component has to work in a particularly aggressive environment that may cause an oxidation of the component itself. One of the major problems that affect stainless-steel components is the possible wear of the antioxidant film that reduces the antioxidant properties of the component itself. One of the main causes that can lead to wear is related to the surface corrosion that occurs every time two evolving bodies are forced to work against each other. If the antioxidant film is affected by surface fatigue problems, such as pitting or spalling, the antioxidant capacities of this type of steel may be lost. In this context, it is, therefore, necessary to verify, at least, by calculation that no corrosion problems exist. The method proposed in this activity is a hybrid method, numerical-theoretical, which allows to estimate the surface fatigue strength in a very short time without having to resort to finite element models that often are so complex to be in contrast with industrial purposes.

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Section: From Contact Force To Contact Stressmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

On the Evaluation of Surface Fatigue Strength of a Stainless-Steel Aeronautical Component

Cianetti

Ciotti

Palmieri

et al. 2019

Metals

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show abstract

“…In order to compare the fatigue performance of AM metals to their wrought counterparts fatigue data reported in the literature are compared in S‐N diagrams. High cycle fatigue data for Superalloy Inconel 718, Ti‐6A‐l4 V, stainless steel 316L, and 17‐4PH are shown in Figure A to C, respectively. All data are corrected for mean stress employing the Smith‐Watson‐Topper (SWT) correction…”

mentioning

confidence: 99%

“…Heat treatments can remove residual stresses, alter the microstructure of the material; make the microstructure isotropic and introduce, eg , precipitation hardening or hot isostatic pressing (HIP) can close internal pores by applying a combination of pressure and heat . For each material presented in Figure one set of AM materials subjected to post‐processing is shown . These materials are post‐processed by combinations of the methods mentioned above and achieve the same fatigue strength as wrought materials.…”

mentioning

confidence: 99%

What is going on with fatigue of additively manufactured metals?

Solberg

Berto

2019

Mat Design & Process Comms

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This brief communication gives an overview of fatigue behaviour and assessment of additively manufactured metals. The high cycle fatigue behaviour of as‐built and post‐processed additively manufactured superalloy 718, stainless steel (316L and 17‐4PH), and Ti‐6Al‐4 V is compared with their wrought counterparts. Further, different approaches used for assessment of the fatigue behaviour are presented.

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“…Nezhadfar, Rakish Shrestha, Nam Phan, and Nima Shamsaei. “Fatigue behavior of additively manufactured 17-4 PH stainless steel: Synergistic effects of surface roughness and heat treatment.” International Journal of Fatigue 124 (2019): 188–204 [1].…”

mentioning

confidence: 99%

Fatigue data for laser beam powder bed fused 17-4 PH stainless steel specimens in different heat treatment and surface roughness conditions

2019

Self Cite

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This article presents the data demonstrating the synergistic effect of surface roughness and heat treatment on the fatigue behavior of 17–4 PH stainless steel (SS) fabricated via laser beam powder bed fusion (LB-PBF) [1]. Two sets of specimens, in as-built and machined surface conditions, were heat treated using five different recommended procedures for 17-4 PH SS by ASTM A693. Axial fully-reversed fatigue tests (R = −1) were conducted on heat treated as-built and machined specimens. The stable hysteresis stress–strain data, as well as the maximum and minimum stress and strain values for the cycle in a log10 increment are included for all conducted fatigue experiments. In addition, fractography images are provided for selected set of specimens.

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Fatigue behavior of additively manufactured 17-4 PH stainless steel: Synergistic effects of surface roughness and heat treatment

Cited by 124 publications

References 44 publications

On the Evaluation of Surface Fatigue Strength of a Stainless-Steel Aeronautical Component

On the Evaluation of Surface Fatigue Strength of a Stainless-Steel Aeronautical Component

What is going on with fatigue of additively manufactured metals?

Fatigue data for laser beam powder bed fused 17-4 PH stainless steel specimens in different heat treatment and surface roughness conditions

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