Biomedical implants are made of biomaterials such as titanium, cobalt-based alloys or stainless-steel depending on which is the most suitable. However, metallic alloys have failed to prove high wear resistance alongside acceptable biocompatibility. Recently, metallic glasses (MG) have attracted more attention for joint replacement implants due to their superior wear resistance and acceptable biocompatibility, however, they are brittle material and constrained in size to few centimeters. Therefore, MG coating layer on ductile-core metallic alloy like stainless-steel would overcome the drawbacks of MG and develop a well-functioning joint replacement implant. In this research, FeCrMoCB MG is laser cladded on nickel-free stainless steel using three levels of specific energy, scanning speed, spot size and overlap percentage to develop different amorphous-crystalline composite structures. The cladded samples showed superior wear resistance in both dry and Ringer's solution conditions (up to 270 times that of the substrate) demonstrating comparable wear rate with common metallic biomaterials that leads to promoted durability. Furthermore, the cell-culture test applied to FeCrMoCB coating layer and substrate showed good cell morphology and growth on both surfaces indicating an acceptable cytocompatibility of both coating layer and substrate.

生物医学植入物由生物材料制成，例如钛，钴基合金或不锈钢，具体取决于哪种材料。然而，金属合金没有证明具有可接受的生物相容性的高耐磨性。近来，金属玻璃（MG）由于其优越的耐磨性和可接受的生物相容性而引起了关节置换植入物的更多关注，然而，它们是脆性材料并且尺寸限制在几厘米。因此，像不锈钢这样的球墨铸铁金属合金上的MG涂层将克服MG的缺点，并开发出功能良好的关节置换植入物。在这项研究中，FeCrMoCB MG使用三种水平的比能，扫描速度，点大小和重叠百分比，以开发出不同的非晶晶体复合结构。包覆的样品在干燥和林格氏溶液条件下均显示出优异的耐磨性（最高为基材的270倍），证明了与普通金属生物材料具有可比的磨损率，从而提高了耐久性。此外，应用于FeCrMoCB涂层和基材的细胞培养测试显示出良好的细胞形态和在两个表面上的生长，表明涂层和基材两者均具有可接受的细胞相容性。