Growth kinetics of Al–Fe intermetallic compounds during annealing treatment of friction stir lap welds

Movahedi, M.; Kokabi, A.H.; Reihani, S.M. Seyed; Najafi, Hamidreza; Farzadfar, S. A.; Cheng, Wei-Jen; Wang, C.J.

doi:10.1016/j.matchar.2014.01.023

Cited by 38 publications

(28 citation statements)

References 27 publications

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“…The highly disturbed character of the interface makes it difficult to analyze the different phases. In addition, it is known that FeAl 3 first grows and then decreases due to the formation of Fe 2 Al 5 upon traditional welding [36]. Finally, it is also noticeable that the different compositions highlighted by EDS could reveal the existence of a more complex rich-FeAl 3 IMC, enriched in chromium, originating from the initial composition of the stainless steel.…”

Section: Resultsmentioning

confidence: 95%

Friction Stir Welding and Processing in Alloy Manufacturing

Saracibar¹,

Agelet²

2019

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Continuum Mechanics (MC)2-UPC (since 2018). He has been acting regularly as an evaluation expert for national and international governmental agencies, universities, and scientific associations and institutions; a panelist for technological institutions; and a reviewer for several international scientific journals. Prof. Carlos Agelet de Saracibar has published 38 research papers in JCR-indexed scientific journals, 127 communications in international conferences, 10 research monographs, and five book chapters in the field of non-linear computational mechanics of solids, with a focus on finite element technology, non-linear constitutive models, contact mechanics, coupled thermo-mechanical problems, and numerical simulation of material forming and production processes, such as casting, friction stir welding (FSW), and additive manufacturing (AM). He has also published three textbooks on continuum mechanics. He has been an invited guest editor of Special Issues in the International

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Section: Resultsmentioning

confidence: 95%

Friction Stir Welding and Processing in Alloy Manufacturing

Saracibar¹,

Agelet²

2019

View full text Add to dashboard Cite

show abstract

“…In addition, it is known that FeAl3 first grows and then decreases due to the formation of Fe2Al5 upon traditional welding [36]. Finally, it is also noticeable that the different compositions highlighted by EDS could reveal the existence of a more complex rich-FeAl3 IMC, enriched in chromium, originating from the initial composition of the stainless steel.…”

Section: Resultsmentioning

confidence: 96%

A Correlation between the Ultimate Shear Stress and the Thickness Affected by Intermetallic Compounds in Friction Stir Welding of Dissimilar Aluminum Alloy–Stainless Steel Joints

Picot

Gueydan

Martinez

et al. 2018

Metals

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Abstract:In this work, Friction Stir Welding (FSW) was applied to join a stainless steel 316L and an aluminum alloy 5083. Ranges of rotation and translation speeds of the tool were used to obtain welding samples with different heat input coefficients. Depending on the process parameters, the heat generated by FSW creates thin layers of Al-rich InterMetallic Compound (IMC) mainly composed of FeAl 3 , identified by energy dispersive spectrometry. Traces of Fe 2 Al 5 were also depicted in some samples by X-ray diffraction analysis and transmission electron microscopy. Monotonous tensile tests performed on the weld joint show the existence of a maximum mechanical resistance for a judicious choice of rotation and translation speeds. It can be linked to an affected zone of average thickness of 15 µm which encompass the presence of IMC and the chaotic mixing caused by plastic deformation in this area. A thickness of less than 15 µm is not sufficient to ensure a good mechanical resistance of the joint. For a thickness higher than 15 µm, IMC layers become more brittle and less adhesive due to high residual stresses which induces numerous cracks after cooling. This leads to a progressive decrease of the ultimate shear stress supported by the bond.

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“…Majority of the literatures [15,[43][44][45][46][47] suggest that the correlation between intermetallic layer thickness, x (m) and hot-dipping time, t (s) for solid iron/liquid aluminum couples follows a "parabolic" rate equation:…”

Section: Kinetics Of Fe-al Intermetallic Layer Formationmentioning

confidence: 99%