Microstructure Characteristics and Properties of HVOF Sprayed Ni-Based Alloy Nano-h-BN Self-Lubricating Composite Coatings

Figure 9

Fractured surface morphologies of as-sprayed coating after the tensile adhesive test. (a) Macrograph of fractured surface; (b) micrograph of fractured surface; (c), (d) high magnification.

(a)

(b)

(c)

(d)