Fabrication of Mg Zn intermetallic layer with high hardness and corrosion resistance on AZ31 alloy

Zhong, Qiang; Pan, Dongdong; Zuo, Shihao; Li, Xiulan; Luo, Hong‐Gang; Lin, Yi

doi:10.1016/j.matchar.2021.111365

Cited by 9 publications

(8 citation statements)

References 32 publications

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“…High-entropy [11] or porous [12] and classical binary compounds [13][14][15] are widely known. Of particular interest are alloys such as nitinol, which have shape memory, high hardness, and excellent anticorrosion properties [15].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ti-Cu Multiphase Alloy by Spark Plasma Sintering: Mechanical and Corrosion Properties

Shichalin

Sakhnevich

Buravlev

et al. 2022

Metals

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To study the material based on the binary system Ti + Cu (50% atm), samples were produced from powders of commercially pure metals and additionally ground in a ball mill (final size about 12 µm) by spark plasma sintering. The following intermetallic phases were obtained in the materials: CuTi2, TiCu, and Ti3Cu4. The materials have a hardness of 363 and 385 HV (800 and 900 °C), a microhardness of 393 and 397 µHV, a density of 4.24 and 5.23 kg/m3, and resistance to corrosion in acids (weight gain + 0.002% after 24 h of testing according to ISO 16151 for a sample with 900 °C—the best result in comparison with steel 308, AA2024, CuA110Fe3Mn2). The hardness value varies due to the presence of pure metal agglomerates. The relationship between the temperature of spark plasma sintering and the characteristics of the material (material parameters improve with increasing temperature, segregation is reduced) is revealed.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Ti-Cu Multiphase Alloy by Spark Plasma Sintering: Mechanical and Corrosion Properties

Shichalin

Sakhnevich

Buravlev

et al. 2022

Metals

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“…Mechanical properties and corrosion resistance of cold-sprayed Zn coating on mild steel substrate are improved by post-process heat treatment due to the improvement of both the inner particle interface and coating/substrate interface [ 11 ]. For Mg alloy substrates, heat treatment can result in element diffusions to form intermetallic compounds within Al/Mg [ 18 , 19 ], Cu/Mg [ 20 ], and Zn/Mg couples [ 21 ]. In an Mg/Zn couple, intermetallic compounds are also observed in the Mg-Zn inter-diffusion layer after heat treatment [ 21 , 22 , 23 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…For Mg alloy substrates, heat treatment can result in element diffusions to form intermetallic compounds within Al/Mg [ 18 , 19 ], Cu/Mg [ 20 ], and Zn/Mg couples [ 21 ]. In an Mg/Zn couple, intermetallic compounds are also observed in the Mg-Zn inter-diffusion layer after heat treatment [ 21 , 22 , 23 , 24 , 25 ]. The square of thickness for the inter-diffusion layer increases linearly with heat time [ 24 ] and the pressure can promote the formation of intermetallic layers [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

“…In an Mg/Zn couple, intermetallic compounds are also observed in the Mg-Zn inter-diffusion layer after heat treatment [ 21 , 22 , 23 , 24 , 25 ]. The square of thickness for the inter-diffusion layer increases linearly with heat time [ 24 ] and the pressure can promote the formation of intermetallic layers [ 21 ]. Intermetallic compounds always present higher microhardness than the substrates [ 21 , 22 , 23 , 24 , 25 ], but the inter-diffusion layer with intermetallic compounds presented positive and negative effects on the corrosion properties [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

“…The square of thickness for the inter-diffusion layer increases linearly with heat time [ 24 ] and the pressure can promote the formation of intermetallic layers [ 21 ]. Intermetallic compounds always present higher microhardness than the substrates [ 21 , 22 , 23 , 24 , 25 ], but the inter-diffusion layer with intermetallic compounds presented positive and negative effects on the corrosion properties [ 21 ]. However, the intermetallic layer is never reported in the cold-sprayed Zn coatings on Mg alloy substrate, although the heat treatment of cold-sprayed Zn coating is reported without any diffusion layer at the Zn coating/steel interface [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

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Influence of Heat Treatment on Microstructure, Mechanical Property, and Corrosion Behavior of Cold-Sprayed Zn Coating on Mg Alloy Substrate

Zhou

Chen

et al. 2022

Materials

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The influence of post-process heat treatment on cold-sprayed Zn coatings on the Mg alloy substrate was investigated at different temperatures (150, 250, and 350 °C) and times (2, 8, and 16 h). Phase, microstructure, microhardness, and tensile strength of Zn coatings were analyzed before and after heat treatment. Corrosion properties of Zn coatings after heat treatment were investigated in simulated body fluid by using potentiodynamic polarization and immersion testing. Results show that although the heat treatment presented little effect on phase compositions of Zn coatings, the full width at half maxima of the Zn phase decreased with the heat temperature and time. Zn coatings presented comparable microstructures before and after heat treatment in addition to the inter-diffusion layers, and the inter-diffusion layer was dependent on the heat temperature and time. Both the thickness and the microhardness of inter-diffusion layers were increased with the heat temperature and time, with the largest thickness of 704.1 ± 32.4 μm and the largest microhardness of 323.7 ± 104.1 HV0.025 at 350 °C for 2 h. The microhardness of Zn coating was significantly decreased from 70.8 ± 5.6 HV0.025 to 43.9 ± 12.5 HV0.025, with the heat temperature from the ambient temperature to 350 °C, and was slightly decreased with the heat time at 250 °C. Although the tensile strength of Zn coating was slightly increased by heat treatment, with the highest value of 40.9 ± 3.9 MPa at 150 °C for 2 h, excessive heat temperature and time were detrimental to the tensile strength, with the lowest value of 6.6 ± 1.6 MPa at 350 °C for 2 h. The heat temperature and heat time presented limited effects on the corrosion current and corrosion ratio of the Zn coatings, and Zn coatings before and after heat treatment effectively hindered the simulated body fluid from penetrating into the substrate. The corrosion behavior of Zn coatings was discussed in terms of corrosion products and microstructures after immersion.

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Dissimilar ultrasonic spot welding of rare-earth containing ZEK100 magnesium-to-aluminum alloy with a zinc interlayer: Microstructural evolution and mechanical properties

Chen

Guo

et al. 2023

Journal of Manufacturing Processes

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Fabrication of Mg Zn intermetallic layer with high hardness and corrosion resistance on AZ31 alloy

Cited by 9 publications

References 32 publications

Synthesis of Ti-Cu Multiphase Alloy by Spark Plasma Sintering: Mechanical and Corrosion Properties

Synthesis of Ti-Cu Multiphase Alloy by Spark Plasma Sintering: Mechanical and Corrosion Properties

Influence of Heat Treatment on Microstructure, Mechanical Property, and Corrosion Behavior of Cold-Sprayed Zn Coating on Mg Alloy Substrate

Dissimilar ultrasonic spot welding of rare-earth containing ZEK100 magnesium-to-aluminum alloy with a zinc interlayer: Microstructural evolution and mechanical properties

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