Design, manufacturing, and testing of a laser textured piston ring surface reinforced with a CuCoBe–diamond composite by hot-pressing

Abstract A CuCoBe–diamond composite was used to reinforce a laser textured 410 stainless steel piston ring by hot-pressing. Different hot-pressing parameters were optimize the sintering process of CuCoBe particles ( P = 25 and 50 MPa, T 820 980 °C, t 15 30 min). The results showed an increase in hardness hot-pressed samples (50.5% 48.5% for respectively). Three textures with different track widths distances between them produced on compression rings’ surface. powders reinforcement at optimized tribological revealed that larger texture dimensions led enhanced performance.