Abstract
In this study, in order to investigate the effect of Ca addition on elevated temperature mechanical properties of AZ series magnesium alloys, 3 different alloys (AZ21, AZX211, and AZX311) were produced. Elemental and phase analyses along with microstructural characterization were performed by using XRF, XRD, optical microscope, and SEM-EDS. Tensile and wear tests were conducted at 25 °C, 150 °C, and 200 °C for the purpose of revealing the room and elevated temperature service condition performances of the alloys which were followed by the application of hardness measurement applied at 25 °C to the alloys. It was observed that while the microstructure of AZ21 alloy contained only α-Mg, the microstructures of AZX211 and AZX311 alloys contained α-Mg, (Mg, Al)2Ca and Al2Ca due to the addition of Ca. Furthermore, the strengths of AZX211 alloy were better for all temperatures, especially at 25 °C with 152 ± 5.4 MPa tensile strength and 95 ± 4.1 MPa yield strength, and also it had the lowest hardness (51.6 ± 1.3 HV) as compared to the other alloys. When all temperatures wear rates were compared, the AZX211 alloy was understood to have a stable wear rate for all applied load values, especially under 40 N applied load for 22.826 ± 0.730 × 10−3 mm3/m at 25 °C, 21.201 ± 0.758 × 10−3 mm3/m at 150 °C and 24.768 ± 0.326 × 10−3 mm3/m at 200 °C test temperatures, respectively.
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This study was supported by the Scientific Research Projects Coordination Unit of Karabuk University [Project No: KBÜBAP-21-YL-064].
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Gokalp, I., Incesu, A. Effect of Ca Addition to the Elevated Temperature Mechanical Properties of AZ Series Magnesium Alloys. Inter Metalcast 17, 1402–1412 (2023). https://doi.org/10.1007/s40962-022-00872-z
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DOI: https://doi.org/10.1007/s40962-022-00872-z