Characterisation of fatigue fracture surfaces of friction stir channelling specimens tested at different temperatures

Vidal, Catarina; Infante, V.; Vilaça, Pedro

doi:10.1016/j.engfailanal.2015.02.009

Cited by 11 publications

(11 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Specimens for fatigue test are usually sectioned and loaded perpendicular to the joint centerline [21][22][23][24][25][27][28][29][30][31]. Zhang [32] studied the fatigue fracture surface for a 6005 aluminum alloy FSW joint by Philips X130 SEM.…”

Section: Fractographymentioning

confidence: 99%

Fatigue of Friction Stir Welded Aluminum Alloy Joints: A Review

Gao

2018

Applied Sciences

View full text Add to dashboard Cite

The application fields of friction stir welding technology, such as aerospace and transportation, has high safety requirements and fatigue is the dominant failure mode for weldments. It is of great significance to understand the fatigue properties of friction stir welded joints. This paper provides an overview of the fatigue mechanism, influencing factors, crack growth rate, and fatigue life assessment. It is found that the fatigue performance of friction stir welded joints can be affected by welding process parameters, test environment, stress ratio, residual stress, and weld defect. The optimized process parameters can produce high quality weld and increase the weld fatigue life. Laser peening is an effective post weld treatment to decrease fatigue crack growth rate and improve material fatigue life.

show abstract

Section: Fractographymentioning

confidence: 99%

Fatigue of Friction Stir Welded Aluminum Alloy Joints: A Review

Gao

2018

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The development of these FSC variants, with the historic milestones, is shown in Figure 3. Popular friction-based manufacturing processes: (a) Friction stir channeling [43,44] ; (b) Friction stir processing [92] ; (c) Friction brazing [93,94] ; (d) Friction riveting [95] ; (e) Friction stir welding [96,97] ; (f) Friction welding [98,99] ; (g) Friction self-piercing riveting [100] ; (h) Friction drilling [101] ; (i) Friction stir spot welding [102] ; (j) Friction stir additive manufacturing [103][104][105] ; (k) Friction surfacing [5] ; (l) Friction flash to tube [106] ; (m) Friction hydro pillar processing [107] .…”

Section: Process Development and Descriptionmentioning

confidence: 99%

A review on friction stir-based channeling

Mehta

Vilaça

2021

Critical Reviews in Solid State and Materials Sciences

Self Cite

View full text Add to dashboard Cite

Friction stir-based channeling is a solid-state processing encompassing the friction stir channeling (FSC) and its variants. In one manufacturing action, the FSC delivers a subsurface internal closed channel in a monolithic plate with no length limitation. The unique characteristics of theses internally closed channels produced with FSC can fit the demand from several industrial fields, namely lightweight structurally stiffened panels and applications where high power density requires highly efficient thermal management systems, such as power electronics and electric vehicles-based transportation. This first review on the FSC and its variants encompasses a systematic and comprehensive understanding on physical properties, including thermal performance and channel manufacturability applied to different engineering materials. The discussion is emphasized on working principle of channel formation, tool design, influence of process parameters, geometrical characterization, mechanical properties, hardness field and microstructural features correlated with mechanical properties. It can be summarized that novel processing of channels by FSC enhances the thermal performance compared to conventional fabrication techniques. FSC can produce complex path channels with various sizes, shapes and surface finishing. Precise control on process parameters and material flow governs the channel formation that subsequently influences thermal and mechanical performances of the channels. FSC has been applied to different range of thermal management systems and has potential for many demanding existent applications and enabling new high-performance products. From the initial FSC concept based on a shoulder-workpiece clearance, to the most recent solutions, such as the stationary shoulder FSC, and the no-tilt-angle and no-shoulder-workpiece clearance, allowing the manufacturing of large size channels, leaving the processed surface at its original quota and ready to be used. A significant leap is introduced with the Hybrid FSC enabling simultaneous welding and channeling, of similar and dissimilar metal components, and therefore, enhancing design opportunities for even more competitive solutions.

show abstract

“…10c (at the AS), are geometrically similar to the ones resulting from application of conventional FSC. These zones were investigated by Vidal et al [9][10][11], reporting that the fracture under fatigue loading of all specimens took place in the interface at the AS, corresponding to the notch of Fig. 10c.…”

Section: Microstructural Characterizationmentioning

confidence: 99%

“…By adjusting process parameters and tool features, it is possible to produce channels with wide range of dimensions. These channels are addressed by Vilaça et al [8] and extensively characterized by Vidal et al [9][10][11]. A significant benefit of using HFSC is that the channel can be produced in component systems involving thin workpieces, made of the same or different materials, instead of the thick monolithic preforms required in the FSC concepts.…”

Section: Introductionmentioning

confidence: 99%

Application of hybrid friction stir channeling technique to improve the cooling efficiency of electronic components

et al. 2018

Self Cite

View full text Add to dashboard Cite

Hybrid friction stir channeling (HFSC) is a new friction stir-based method for producing internal, closed channels created simultaneously during welding of multiple metal plates. Differently from conventional friction stir channeling, that is only able to produce channels in a monolithic component, HFSC can be applied to complex structural systems involving multiple components made of similar or dissimilar materials. In this study, the channels manufactured by HFSC were open in a structural system made of AA5083, with one base plate of 5 mm thick, and one overlapping plate of 8 mm thick, used as a rib, containing the channel along conformal cooling path. The thermal performance of the HFSC channel is compared with a conventional channel, with similar shape and path, produced by milling. The channels being tested are part of an electronic device containing multiple heat sources. The HFSC channel presents 30 to 40% lower steady-state temperature and 33% higher cooling rate during the transient period than those of the milled version. Compared with the milled channel, the heat extraction capacity, per unit of mechanical pumping power, is higher for the HFSC channel. Surface roughness, microhardness, and microstructural analysis of HFSC channels are investigated to characterize the HFSC channel.

show abstract

Characterisation of fatigue fracture surfaces of friction stir channelling specimens tested at different temperatures

Cited by 11 publications

References 7 publications

Fatigue of Friction Stir Welded Aluminum Alloy Joints: A Review

Fatigue of Friction Stir Welded Aluminum Alloy Joints: A Review

A review on friction stir-based channeling

Application of hybrid friction stir channeling technique to improve the cooling efficiency of electronic components

Contact Info

Product

Resources

About