Evaluation of corrosion and wear resistance of friction stir welded ZK60 alloy

Liu, Dejia; Xin, Renlong; Zhao, Longzhi; Hu, Yong; Zhang, Jian

doi:10.1080/13621718.2017.1286443

Cited by 20 publications

(12 citation statements)

References 42 publications

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“…Precipitation is another factor affecting the mechanical properties of FSW Mg alloys. Precipitates in Mg alloys are commonly broken up during FSW [40][41][42]. In addition, precipitates would be diffuse and uniformly distributed in WZ.…”

Section: A Brief Review Of Microstructure and Mechanical Properties Omentioning

confidence: 99%

“…In addition, precipitates would be diffuse and uniformly distributed in WZ. For example, precipitates in the cast and aged ZK60 alloy are segregated along grain boundaries in base metal (BM) and are broken up and changed into a uniform distribution after FSW [42,43]. Therefore, regardless of grain size or precipitates, the mechanical properties of Mg alloys would be enhanced by FSW.…”

Section: A Brief Review Of Microstructure and Mechanical Properties Omentioning

confidence: 99%

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Analysis of Weak Zones in Friction Stir Welded Magnesium Alloys from the Viewpoint of Local Texture: A Short Review

Liu

Tang

Shen

et al. 2018

Metals

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Friction stir welding (FSW) is a promising approach for the joining of magnesium alloys. Although many Mg alloys have been successfully joined by FSW, it is far from industrial applications due to the texture variation and low mechanical properties. This short review deals with the fundamental understanding of weak zones from the viewpoint of texture analysis in FSW Mg alloys, especially for butt welding. Firstly, a brief review of the microstructure and mechanical properties of FSW Mg alloys is presented. Secondly, microstructure and texture evolutions in weak zones are analyzed and discussed based on electron backscatter diffraction data and Schmid factors. Then, how to change the texture and strengthen the weak zones is also presented. Finally, the review concludes with some future challenges and research directions related to the texture in FSW Mg alloys. The purpose of the paper is to provide a basic understanding on the location of weak zones as well as the weak factors related to texture to improve the mechanical properties and promote the industrial applications of FSW Mg alloys.

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Section: A Brief Review Of Microstructure and Mechanical Properties Omentioning

confidence: 99%

Section: A Brief Review Of Microstructure and Mechanical Properties Omentioning

confidence: 99%

Analysis of Weak Zones in Friction Stir Welded Magnesium Alloys from the Viewpoint of Local Texture: A Short Review

Liu

Tang

Shen

et al. 2018

Metals

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“…Small corrosion products are discretely distributed in the corrosion surface after 2 min immersion (see Figure a). Because Mg 17 Al 12 phase always exists in Mg–Al–Zn alloy, which is an effective cathode to the AZ31 matrix, and causing microgalvanic corrosion occurred near the phases . Owing to the effect of microgalvanic corrosion, pitting corrosion occurred in the corrosion surface.…”

Section: Resultsmentioning

confidence: 99%

“…Because Mg 17 Al 12 phase always exists in Mg-Al-Zn alloy, which is an effective cathode to the AZ31 matrix, and causing microgalvanic corrosion occurred near the phases. [32] Owing to the effect of microgalvanic corrosion, pitting corrosion occurred in the corrosion surface. Similar results can be found in many previous studies regarding the corrosion behavior of Mg-Al-Zn alloys.…”

Section: Corrosion Behaviormentioning

confidence: 99%

Evaluation of corrosion resistance of multipass friction stir processed AZ31 magnesium alloy

Liu

Shen

Tang

et al. 2019

Materials & Corrosion

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Multipass friction stir processing (FSP) is an effective method to produce a homogeneous microstructure and enhance the mechanical properties of magnesium (Mg) alloys. However, few studies have concentrated on the variation of corrosion resistance of Mg alloys during multipass FSP. Electrochemical alternating current (AC) impedance, polarization behavior, hydrogen evolution, and corrosion morphology were used to investigate the effects of subsequent passes on the corrosion resistance of FSP AZ31 plates. A quasi‐in‐situ observation of the growth of corrosion products was carried out to further study the corrosion behaviors of FSP AZ31 alloy. It is found that subsequent passes could further reduce the grain size of FSP AZ31 alloy and result in an increase in the hardness compared with the first pass. Moreover, subsequent passes are beneficial to the improvement in the corrosion resistance of AZ31 alloy. Pitting corrosion occurs in FSP AZ31 plates, which has not changed after subsequent passes.

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“…The immersion time period maintained for the test was 48, 72, 96, and 120 hrs. After finishing the immersion time period, the samples were taken out, allowed to dry, then weighted [ 20 ].…”

Section: Methodsmentioning

confidence: 99%

Experimental Investigation of the Friction Stir Weldability of AA8006 with Zirconia Particle Reinforcement and Optimized Process Parameters

et al. 2021

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A lightweight, highly corrosive resistant, and high-strength wrought alloy in the alumi-num family is the Aluminium 8006 alloy. The AA8006 alloy can be formed, welded, and adhesively bonded. However, the recommended welding methods such as laser, TIG (Tungsten Inert Gas welding), and ultrasonic are more costly. This investigation aims to reduce the cost of welding with-out compromising joint quality by means of friction stir welding. The aluminum alloy-friendly re-inforcement agent zirconia is utilized as particles during the weld to improve the performance of the newly identified material AA8006 alloy in friction stir welding (FSW). The objectives of this research are to identify the level of process parameters for the friction stir welding of AA8006 to reduce the variability by the trial-and-error experimental method, thereby reducing the number of samples needing to be characterized to optimize the process parameters. To enhance the quality of the weld, the friction stir processing concept will be adapted with zirconia reinforcement during welding. The friction stir-processed samples were investigated regarding their mechanical proper-ties such as tensile strength and Vickers microhardness. The welded samples were included in the corrosion testing to ensure that no foreign corrosive elements were included during the welding. The quality of the weld was investigated in terms of its surface morphology, including aspects such as the dispersion of reinforced particles on the welded area, the incorporation of foreign elements during the weld, micro defects or damage, and other notable changes through scanning electron microscopy analysis. The process of 3D profilometry was employed to perform optical microscopy investigation on the specimens inspected to ensure their surface quality and finish. Based on the outcomes, the optimal process parameters are suggested. Future directions for further investigation are highlighted.

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Evaluation of corrosion and wear resistance of friction stir welded ZK60 alloy

Cited by 20 publications

References 42 publications

Analysis of Weak Zones in Friction Stir Welded Magnesium Alloys from the Viewpoint of Local Texture: A Short Review

Analysis of Weak Zones in Friction Stir Welded Magnesium Alloys from the Viewpoint of Local Texture: A Short Review

Evaluation of corrosion resistance of multipass friction stir processed AZ31 magnesium alloy

Experimental Investigation of the Friction Stir Weldability of AA8006 with Zirconia Particle Reinforcement and Optimized Process Parameters

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