Study on the Mechanical Properties of Metal Rubber Inner Core of O-Type Seal with Large Ring-to-Diameter Ratio

Figure 15

Effect of heat treatment on material properties. (a) Porosity = 51.5%. (b) Porosity = 57.6%. (c) Porosity = 63.7%. (d) Porosity = 69.7%.

(a)

(b)

(c)

(d)