Evaluating the Mechanical Properties of Zinc-Coated Stainless Steel Orthodontic Wires Using Physical Vapor Deposition

Figure 4

(a) The cracks appeared after the three-point bending test was performed (magnification: 950x). (b) The Zn layer is shown under the SEM after the friction resistance test was performed (magnification: 5.50kx).

(a)

(b)