Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, S7H 5A9, Canada.
Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK, S7H 5A9, Canada.
J Mech Behav Biomed Mater. 2022 Jun;130:105228. doi: 10.1016/j.jmbbm.2022.105228. Epub 2022 Apr 6.
TaZrN coatings were synthesized directly on biomedical grade CoCrMo using radio-frequency magnetron co-sputtering. The mechanical properties, adhesion, wear, and corrosion resistance of the TaZrN coatings on the Cobalt alloy were assessed to determine their potential for hip joint replacement applications. The results indicate the TaZrN coatings are highly adhesive and have a nanocrystalline structure with a Hardness and Young's modulus of 19 GPa and 297 GPa, respectively. The TaZrN coatings showed a 3% lower wear rate of the polyethylene counterpart and an i value 274 times lower than the uncoated CoCrMo alloy. The excellent wear and corrosion resistance of the TaZrN coating suggest that it is a promising coating material for CoCrMo alloy to improve the lifetime of hip joint implants.
采用射频磁控共溅射技术，直接在医用级 CoCrMo 上合成了 TaZrN 涂层。评估了 TaZrN 涂层在钴合金上的力学性能、附着力、耐磨性和耐腐蚀性，以确定其在髋关节置换应用中的潜力。结果表明，TaZrN 涂层具有高附着力，并且具有纳米晶结构，硬度和杨氏模量分别为 19GPa 和 297GPa。TaZrN 涂层的聚乙烯对磨材料的磨损率低 3%，i 值比未涂层的 CoCrMo 合金低 274 倍。TaZrN 涂层具有优异的耐磨性和耐腐蚀性，表明它是一种有前途的 CoCrMo 合金涂层材料，可提高髋关节植入物的使用寿命。
