Tribological system, method for producing a tribological system and internal combustion engine with a tribological system

摘要

The invention relates to a tribological system (1) with a valve seat ring (5) having a first contact surface (4) and a valve (7) having a second contact surface (6). The second contact surface (6) of the valve (7) can be placed against the first contact surface (4) of the valve seat ring (5) to close a valve opening (8). The second contact surface (6) of the valve (7) is arranged in a seat area (9) of the valve (7). The valve (7) in the seat area (9) has a seat base (10) with a high nickel content or comprising a nickel-based material, which is armored or reinforced with nickel-based armor (11) while forming the second contact surface (6) is coated.