Cyclic deformation and fatigue behavior of additively manufactured 17–4 PH stainless steel

Carneiro, Luiz; Jalalahmadi, Behrooz; Ashtekar, Ankur; Jiang, Yanyao

doi:10.1016/j.ijfatigue.2019.02.006

Cited by 115 publications

(49 citation statements)

References 45 publications

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“…The dimension of critical pores was seen to be consistent throughout all the machined specimens, with diameters within the range of 20 -30 μm. This size is consistent with the findings of Carneiro et al [51] for a similar material fabricated by LB-PBF in Ar environment.…”

Section: Analysis Of Fracture Surfacessupporting

confidence: 93%

High cycle fatigue behavior and life prediction for additively manufactured 17-4 PH stainless steel: Effect of sub-surface porosity and surface roughness

Romano

Nezhadfar

Seifi

et al. 2020

Theoretical and Applied Fracture Mechanics

138

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This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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Section: Analysis Of Fracture Surfacessupporting

confidence: 93%

High cycle fatigue behavior and life prediction for additively manufactured 17-4 PH stainless steel: Effect of sub-surface porosity and surface roughness

Romano

Nezhadfar

Seifi

et al. 2020

Theoretical and Applied Fracture Mechanics

138

View full text Add to dashboard Cite

show abstract

“…where σ a,i is the alternating stress value to which the component is subjected, obtainable by a cycle counting algorithms. Substituting Equation (22) in Equation 20, it is possible to obtain the following formula that is most useful for calculating the fatigue damage:…”

Section: Methods For Surface Fatigue Damage Evaluationmentioning

confidence: 99%

“…Recalling the Tresca criterion [41,42], which states that the surface stress is twice the maximum tangential stress and taking advantage of the previous hypothesis, it is possible to affirm that even the surface stress is purely alternate, and therefore, it is the alternating stress of Equations (22) and (23) (σ id = 2•τ max ). The previous equations are indeed still valid.…”

Section: Methods For Surface Fatigue Damage Evaluationmentioning

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%

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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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“…Zhang [4], [6] et al studied the effects of AM processing parameters on fatigue and fracture characteristics of 316L stainless steel, and proposed a model to predict fatigue performance. Carneiro [7] carried out analysis on the cyclic response and fatigue performances for AM 17-4 PH stainless steel, and it was found that the strain-life fatigue curves showed an important key point between low cycle fatigue and high cycle fatigue. Furthermore, the defects and porosities by AM process could greatly affect the fatigue properties, and reduce the fatigue performances of the AM metal materials.…”

Section: Introductionmentioning

confidence: 99%

A Revised Approach for the Life Prediction of Metal Materials Fabricated by Additive Manufacturing

Hong

Wang

2021

mech

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In this work, a new fatigue damage model considering the additive manufacturing (AM) effects is established. We first present the elastoplastic constitutive model with the newly established fatigue damage model considering AM effects. The method to calibrate the material parameters is put forward, and the numerical solution of the theoretical model is implemented. Second, the fatigue lives of two AM metal materials are predicted, and the applicability of the theoretical model is verified by the test results. Finally, the influence of the volume energy density ratio on the fatigue life of AM metal materials is analyzed, and the results show that the volume energy density ratio has a great influence on the fatigue behavior of AM metal materials. When the ratio is less than 1.0, the fatigue life increases rapidly with the increase of the ratio. The fatigue life increases with the stress ratio when the volume density ratio keeps as a constant. The research work in this paper provides a feasible method to predict the fatigue life of AM metal materials by continuum damage mechanics in engineering.

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Cyclic deformation and fatigue behavior of additively manufactured 17–4 PH stainless steel

Cited by 115 publications

References 45 publications

High cycle fatigue behavior and life prediction for additively manufactured 17-4 PH stainless steel: Effect of sub-surface porosity and surface roughness

High cycle fatigue behavior and life prediction for additively manufactured 17-4 PH stainless steel: Effect of sub-surface porosity and surface roughness

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

A Revised Approach for the Life Prediction of Metal Materials Fabricated by Additive Manufacturing

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