Internal combustion engines have been improved markedly in recent years through efforts to conserve resources, reduce emissions and improve fuel efficiency. In this regard, the authors have been working to reduce friction and improve the seizure properties of the crankshaft main journal and main bearing. These mechanical components of internal combustion engines incur large friction losses. In order to reduce friction, journals have been coated with a diamond-like carbon (DLC) coating, which has been reported to reduce friction in the fluid lubrication regime in recent years. Another current issue of journals and bearings is the need to improve seizure resistance. Therefore, these properties were evaluated for material combinations of aluminium alloy bearings and DLC-coated journals, which have low affinity. The results revealed that friction was reduced under a fluid lubrication regime and seizure resistance was improved under a mixed lubrication regime.

近年来，通过努力节约资源，减少排放和提高燃料效率，内燃机得到了显着改善。在这方面，作者一直致力于减少摩擦并改善曲轴主轴颈和主轴承的咬合性能。内燃机的这些机械部件导致很大的摩擦损失。为了减少摩擦，在轴颈上涂了类金刚石碳（DLC）涂层，据报道，近年来，这种涂层可减少流体润滑过程中的摩擦。期刊和轴承的另一当前问题是需要提高抗咬合性。因此，对具有低亲和力的铝合金轴承和DLC涂层轴颈的材料组合评估了这些性能。