Effect of fatigue damage on static and dynamic tensile behaviour of electro‐discharge machined Ti‐6Al‐4V

Lopez, Jesus Galan; Verleysen, Patricia; Degrieck, Joris

doi:10.1111/j.1460-2695.2012.01699.x

Cited by 17 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is necessary to remove it to reveal the CM surface, which is representative of surface conditions of the real cast component. EDM is a process very harmful for fatigue strength of cast Ti‐6Al‐4V alloy as illustrated by Lόpez et al .…”

Section: A Representative Fatigue Specimenmentioning

confidence: 99%

Influence of artificial and casting defects on fatigue strength of moulded components in Ti‐6Al‐4V alloy

Léopold

Nadot

Thomas

et al. 2015

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

The influence of defects on the fatigue strength of a cast Ti‐6Al‐4V alloy has been investigated. An experimental programme has been defined with different castings. On a first stage, a flat fatigue specimen has been developed to be representative of the real aircraft component. Then, reference fatigue properties have been determined and reduction of the fatigue strength has been quantified for artificial and natural defects. It is shown that an artificial defect with a chemically milled surface is representative of an in‐service component surface machining: surface pinholes have similar influence on the fatigue behaviour. Furthermore, the experimental results have shown that the geometrical morphology is not the major parameter that governs the fatigue life reduction: the defect type has a major influence. It is also shown that the initiation stage is not negligible in the total fatigue life about 105 cycles. Kitagawa diagrams were built to determine critical defect sizes.

show abstract

Section: A Representative Fatigue Specimenmentioning

confidence: 99%

Influence of artificial and casting defects on fatigue strength of moulded components in Ti‐6Al‐4V alloy

Léopold

Nadot

Thomas

et al. 2015

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…This result is consistent with the yields reported in Ref. , where fatigue tests were performed on electro‐discharge machined samples of Ti‐6Al‐4V. It was shown that the fatigue response of Ti‐6Al‐4V, as well as that of steels, is highly sensitive to the surface finishing condition.…”

Section: Preliminary Discussionmentioning

confidence: 99%

A new method for modelling the support effect under rotating bending fatigue: application to Ti‐6Al‐4V alloy, with and without shot peening

Olmi

Freddi

2013

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

The subject of this paper is to investigate the capability of the relative stress gradient to properly represent the beneficial effect of residual stress states on the fatigue life of Ti‐6Al‐4V specimens, with notches of different severity. The research was developed considering notched and un‐notched specimens with different geometries and different shot‐peening treatments. The results were determined by running fatigue experimentation under rotating bending and by developing a novel predictive model based on the relationship between the local fatigue limit and a generalized form of the relative stress gradient, accounting for the peening‐induced residual stresses. The proposed tool for fatigue limit estimation was completed by a stochastic analysis, which considered the variability of the involved parameters, in particular the residual stress entity. This made it possible to finally determine the component failure probability in a general, efficient and accurate way.

show abstract

“…The rationale for selecting the surface finish as a response is its dominant importance in governing the final quality of the machined specimen [13]. Several properties like corrosion, wear and fatigue resistance are mainly governed by the level of surface finish [14]. Therefore, surface roughness (R a ) has been selected as the response characteristic.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Waterjet Cutting of Clad Composite for Achieving Minimal Cut Quality Difference Between Constituent Layers

Ishfaq

Ahmad

Mufti

et al. 2019

Metals

View full text Add to dashboard Cite

Clad composites have emerged as a suitable choice to augment the industrial needs due to having a combination of different properties. The accurate cutting is challenging due to the heterogeneous nature of the composite. Conventionally, thermal cutting (plasma/gas) techniques are commonly employed which provide poor cut quality, deeper heat affected zones and demand additional finishing operations. Therefore, this research evaluates the potential of abrasive water jet cutting (AWJC) as a proficient substitute for the cutting of stainless-clad-steel composite in terms of surface quality. However, it is difficult to produce a similar level of surface finish at both the layers because the constituent layers have different mechanical properties. The effect and significance of four important AWJC parameters on cut quality are examined through statistical analyses. Optical and scanning electron microscopic analyses are further provided as evidence of the reported results. Optimal settings are also developed using a weighted signal-to-noise ratio technique which can provide minimal roughness at each layer. Moreover, using the optimal settings, a similar level of surface finish has been achieved for both the layers with a difference of just 0.03 µm between the constituent layers.

show abstract

Effect of fatigue damage on static and dynamic tensile behaviour of electro‐discharge machined Ti‐6Al‐4V

Cited by 17 publications

References 32 publications

Influence of artificial and casting defects on fatigue strength of moulded components in Ti‐6Al‐4V alloy

Influence of artificial and casting defects on fatigue strength of moulded components in Ti‐6Al‐4V alloy

A new method for modelling the support effect under rotating bending fatigue: application to Ti‐6Al‐4V alloy, with and without shot peening

Abrasive Waterjet Cutting of Clad Composite for Achieving Minimal Cut Quality Difference Between Constituent Layers

Contact Info

Product

Resources

About