Research on Methods to Enhance the Wear Properties of 41CrMo4 Steel

Abstract

The material selection process in engineering design is complex due to the presence of numerous materials and the necessity to evaluate their various properties together. Issues commonly encountered in the manufacturing of agricultural machinery, such as wear, cracks, and sudden breakage, highlight the vital importance of appropriate material selection. In this context, the 41CrMo4 alloy is preferred in the manufacturing of parts that carry high loads, as it offers significant advantages across many sectors due to its high strength. The high-strength properties of this alloy enable its use in the production of heavy machinery, such as transport systems, concrete machines, and construction equipment. Additionally, it is favoured for pipelines and other equipment due to its resistance to impact and wear. This alloy, which enhances wear resistance thanks to its carbon and chromium content, is further strengthened through hardening and hardfacing applications. These characteristics are among the main reasons why the 41CrMo4 alloy is commonly chosen for dynamic applications. In this study, the effects of tempered and hardfacing 41CrMo4 steel on wear properties were investigated using the Dry Sand Rubber Wheel test device according to ASTM G65. Hardness measurements were taken from the surface and cross-section to determine the mechanical properties of the materials. Microstructures of the samples were conducted. As a result, it was found that the wear resistance was higher in the 41CrMo4 samples that had a hardfacing applied to their surface.