Şevik Hüseyin, Özarslan Selma, Dieringa Hajo
Department of Metallurgical and Materials Engineering, Faculty of Engineering, Mersin University, Mersin 33343, Turkey.
Department of Physics, Science and Art Faculty, Hatay Mustafa Kemal University, Antakya 31034, Turkey.
Nanomaterials (Basel). 2022 Dec 9;12(24):4399. doi: 10.3390/nano12244399.
In this work, the microstructure, mechanical properties, and corrosion behavior of the Mg-1Zn-0.6Ca matrix alloy (ZX10), reinforced by adding various amounts of nanodiamond particles (0.5, 1, and 2 wt.%), prepared by the ultrasound-assisted stir-casting method, were investigated as they are deemed as potential implant materials in biomedical applications. Microstructure, nanoindentation, mechanical tensile, immersion, and potentiodynamic polarization tests were performed for evaluating the influence of the addition of nanodiamond particles on the alloy's mechanical and biocorrosion properties. The results revealed that the addition of nanodiamond particles causes a reduction in the alloy's grain size. The alloy's nanohardness and elastic modulus values increased when the amount of added nanodiamond particles were increased. The nanocomposite with an addition of 0.5% ND showed the best composition with regard to an acceptable corrosion rate as the corrosion rates are too high with higher additions of 1 or 2% NDs. At the same time, the yield strength, tensile strength, and elongation improved slightly compared to the matrix alloy.
在本研究中，通过超声辅助搅拌铸造法制备了添加不同含量纳米金刚石颗粒（0.5%、1%和2%重量百分比）的Mg-1Zn-0.6Ca基合金（ZX10），并对其微观结构、力学性能和腐蚀行为进行了研究，因为它们被认为是生物医学应用中潜在的植入材料。进行了微观结构、纳米压痕、力学拉伸、浸泡和动电位极化测试，以评估添加纳米金刚石颗粒对合金力学和生物腐蚀性能的影响。结果表明，添加纳米金刚石颗粒会导致合金晶粒尺寸减小。当添加的纳米金刚石颗粒量增加时，合金的纳米硬度和弹性模量值增加。添加0.5%纳米金刚石的纳米复合材料在可接受的腐蚀速率方面表现出最佳的成分，因为添加1%或2%纳米金刚石时腐蚀速率过高。同时，与基体合金相比，屈服强度、抗拉强度和伸长率略有提高。
