Figure 6
The panel a shows an orientation map across the interface between 316 L S S and 15-5 P H S S, with a crystallographic key labelled 001, 101, and 111, and a scale bar of 200 micrometres. Panel b shows a phase map of the same interface, with phases labelled martensite and austenite, and a scale bar of 25 micrometres. Panel c contains two maps of the interface between M S and S S. The upper map shows an orientation map with arrows marking interfacial features and a scale bar of 100 micrometres. The lower map shows martensite and austenite distributions with arrows indicating melt pool boundaries and a scale bar of 100 micrometres. Panel d shows a micrograph labelled M P 1 and M S 1, with an arrow labelled B D, a crystallographic key labelled 001, 101, and 111, and a scale bar of 200 micrometres. Panel e shows a composition profile across the interface between 17-4 P H and C o C r M o. The plotted elements are C r, F e, M o, and C o. F e decreases across the interface, while C o increases. C r increases slightly, and M o remains low before increasing near the interface. The horizontal axis spans 0 to 15, and the vertical axis ranges from 0 to 80 weight per cent. A scale bar of 200 micrometres is included. Panel f shows a micrograph of the interface between T i 6 A l 4 V and C o C r M o, with a labelled diffusion area and a scale bar of 10 micrometres.Microstructural summary of potential alloy systems to be used to integrate the wear resistance functionality: (a) EBSD mapping of the 316 L-15-5PH interface, showing texture and distribution of martensitic/austenitic phases (Nadimpalli et al., 2019; Liang et al., 2023), (b) EBSD mapping of the SS420-MS300 interface, highlighting texture and distribution of martensitic/austenitic phases (Tan et al., 2020), (c) Microscopic image of the quite sound Co30Cr7Mo-MS1 interface (Pasco et al., 2023), d) Microscopic image and elemental distribution of the CoCrMo-17-4PH interface (Steponavičiūtė et al., 2022), (e) microscopic and EDS mapping of CoCrMo-Ti6Al4V interface (Bartolomeu et al., 2023)