Effect of tool geometry on friction stir processing and fatigue strength of MIG T welds on Al alloys

Abstract

Please cite this article as: de Jesus, J.S., Loureiro, A., Costa, J.M., Ferreira, J.M.,Effect of tool geometry on friction stir processing and fatigue strength of MIG T welds on al alloys, Journal of Materials Processing Technology (2014), http://dx.doi.org/10. 1016/j.jmatprotec.2014.05.012 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. 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. Page 1 of 35A c c e p t e d M a n u s c r i p t EFFECT OF TOOL GEOMETRY ON FRICTION STIR PROCESSING AND FATIGUE STRENGTH OF MIG T WELDS ON AL ALLOYS HighlightsTool geometry has great influence on properties of FSP MIG welds; FSP removes defects in the MIG weld toe and increases its radius of curvature;Grain refinement in processed regions is affected by tool geometry Tool geometry influences the fatigue strength of FSP MIG T welds.

[Retracted] Microstructure and Fatigue Properties of 6061 Aluminum Alloy Laser‐MIG Hybrid Welding Joint

“…By substituting the fatigue test data of WJ and BM into formula (2), the linear formula between fatigue life and stress amplitude of WJ and BM is obtained as follows:…”

“…6061-T6 aluminum alloy is a medium strength heat treatable aluminum alloy with Mg and Si as the main alloying elements. Due to the aging strengthening effect of GP region, β′ phase (Q′ phase) and β "phase (Q″), 6061-T6 aluminum alloy has excellent mechanical properties [1,2]. 6061-T6 aluminum alloy has good corrosion resistance, good weldability, and high strength, which is widely used in aircraft, high-speed train, and automobile structures [3].…”

The influence of multipass friction stir processing on the corrosion behavior and mechanical properties of zircon-reinforced Al metal matrix composites

“…During FSP, the near-surface layers of the processed metallic component is subjected to an intense localized plastic deformation and also a significant frictional heating that creates a microstructure with fine, equiaxed grains due to dynamic recrystallization in the stirred zone [7,8]. So, it can provide a localized control of microstructures for enhancement of grain size dependent properties such as tensile strength, ductility, and fatigue strength [9, chemistry, work piece temperature, vertical pressure, and active cooling, exert a significant effect on the size of the recrystallized grains in the stirred zone [11][12][13][14]. Several investigations have been conducted to prepare surface composites such as Al/SiC [15][16][17], Al-Mg-Si/TiB 2 [18] and Al/B 4 C [19] by FSP.…”

Surface development by reinforcing nano-composites during friction stir processing – a review

“…Tool geometry influences the heat generation rate, traverse force, torque and the thermo mechanical atmosphere (Rai et al , 2011; Ramanjaneyulu et al , 2013). The ratio of the tool pin to the shoulder is 1:3 or 1:4 (De Jesus et al , 2014).…”