Microstructure, hardness and wear resistance of AZ91 magnesium alloy produced by friction stir processing with air cooling

Iwaszko, J.; Kudła, Krzysztof

doi:10.21203/rs.3.rs-187500/v1

Cited by 3 publications

(1 citation statement)

References 44 publications

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“…Its potential applications could be related to aerospace and automotive industry [3][4][5], electronic systems and even in medicine [6,7]. Nevertheless, there are significant disadvantages of magnesium alloys, mostly connected with their Investigations on the Microstructure and Corrosion Performance of Different WC-based Cermet Coatings Deposited by High Velocity Oxy Fuel Process onto Magnesium Alloy Substrate poor mechanical properties, wear and erosion resistance [8,9]. However, the crucial drawback that prevents their widespread application is an impoverished corrosion performance [10,11].…”

Section: Introductionmentioning

confidence: 99%

Investigations on the Microstructure and Corrosion Performance of Different WC-Based Cermet Coatings Deposited by High Velocity Oxy Fuel Process onto Magnesium Alloy Substrate

Jonda¹,

Łatka²,

Maciej³

et al. 2023

Adv. Sci. Technol. Res. J.

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In the field of surface engineering, thermal spraying is very wide adopted in many branches of the industry. The main reasons of such situation are its flexibility as well as cost effectiveness. Among others, high velocity oxy fuel (HVOF) technique is dedicated for spraying hardmetal and cermet coatings, especially for wear-and corrosion resistance. Such type of coating could be a promising candidate as protective layer for magnesium alloys elements. These materials need a strong improvement in the corrosion protection as well as on the field of wear resistance in order to be widely used in the industry. In this work, different WC-based coatings, namely: (i) WC-Co, (ii) WC-Co-Cr and (iii) WC-Cr 3 C 2 -Ni manufactured by HVOF spraying, were investigated. The form of all feedstock materials was agglomerated and sintered powder. All coatings were sprayed with the same technological parameters, especially spray distance which was equal to 400 mm on the AZ91 magnesium alloy substrate. The main aim of the studies was to investigate the influence of the powder material on the corrosion resistance of obtained coatings. The manufactured coatings were examined in terms of its microstructure, using scanning electron microscope (SEM) and corrosion performance, which was assessed in the electrochemical corrosion investigations in 3.5% NaCl solution by Tafel method. The study showed that the corrosion resistance increasing in such order: AZ91 < WC-Cr 3 C 2 -Ni < WC-Co < WC-Co-Cr. It should be stressed that WC-Cr 3 C 2 -Ni coating exhibits very low corrosion performance, which could be effected by relatively high porosity (c.a. 3 vol.%) and because of that the more complex composition promotes creation of many corrosion cells.

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Section: Introductionmentioning

confidence: 99%

Investigations on the Microstructure and Corrosion Performance of Different WC-Based Cermet Coatings Deposited by High Velocity Oxy Fuel Process onto Magnesium Alloy Substrate

Jonda¹,

Łatka²,

Maciej³

et al. 2023

Adv. Sci. Technol. Res. J.

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A review on biomedical implant materials and the effect of friction stir based techniques on their mechanical and tribological properties

Moghadasi

Isa

Ariffin

et al. 2022

Journal of Materials Research and Technology

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Fracture Characteristics of AZ31B and Cu 99 Tensile Test Specimens Joined by FSW and FSW-IG Processes

Binchiciu

Codrean

Boţilă³

et al. 2022

DDF

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The aim of the current study is to perform a failure analysis on specimens extracted from 4 mm sheets of AZ31B, according to ASTM 4377G and 3 mm sheets of Cu99 alloys according to SR EN 1652:2000, that were joined together using FSW and FSW-IG processes. In order to promote the suitability and advantages of implementing FSW-IG processes in the automotive and aerospace industry, the papers authors performed destructive testing on the samples extracted, namely tensile strength test, following with topography analysis using scanning electron microscopy – SEM, combined with energy dispersive spectroscopy EDS, micro-hardness tests and fractography investigations. Results highlighted a considerable improvement in the ultimate tensile strength of the welded joint, a higher degree of deformability of the welded joint in the case of FSW – IG, compared to classical FSW; while maintaining the same process conditions and parameters. Experimental data is in accordant with automotive and aerospace imposed compliances, thus presented and discussed in the following scientific article.

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Microstructure, hardness and wear resistance of AZ91 magnesium alloy produced by friction stir processing with air cooling

Cited by 3 publications

References 44 publications

Investigations on the Microstructure and Corrosion Performance of Different WC-Based Cermet Coatings Deposited by High Velocity Oxy Fuel Process onto Magnesium Alloy Substrate

Investigations on the Microstructure and Corrosion Performance of Different WC-Based Cermet Coatings Deposited by High Velocity Oxy Fuel Process onto Magnesium Alloy Substrate

A review on biomedical implant materials and the effect of friction stir based techniques on their mechanical and tribological properties

Fracture Characteristics of AZ31B and Cu 99 Tensile Test Specimens Joined by FSW and FSW-IG Processes

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