Advances in Tribology

Research Article

Development of New PM Iron-Based Materials for Self-Lubricating Bearings

Figure 19

Surface roughness of the sample with 1% Sn (a), 1.5% Sn (b), and 2.5% Sn (c) across the sliding direction.
248037.fig.0019a
(a) 𝑅 𝑝 = 6.58 μm; 𝑅 𝑎 = 2.09 μm; 𝑅 𝑧 = 12.1 μm
248037.fig.0019b
(b) 𝑅 𝑝 = 5.44 μm; 𝑅 𝑎 = 1.89 μm; 𝑅 𝑧 = 11.6 μm
248037.fig.0019c
(c) 𝑅 𝑝 = 3.62 μm; 𝑅 𝑎 = 1.09 μm; 𝑅 𝑧 = 7.09 μm