This article investigates the friction and wear of cold rolled high strength steel at various\ndisplacement amplitudes. Reciprocal sliding tests are carried out using a ball-on-flat testing apparatus.\nThe tangential force occurring at the contact surface between a high strength steel specimen and an\nAISI52100 ball is measured during the tests. After each test, the worn surface profile on the steel\nspecimen is determined. Experimental results show that the ratio of the maximum tangential to\nthe normal force remains at 0.7 after an initial rapid increase, and the ratio does not greatly change\naccording to the imposed displacement amplitudes (in the range of 0.05 mm and 0.3 mm). The wear\nvolume loss on the steel specimen increases according to the number of cycles. It is determined that\nthe wear rate of the specimen changes with respect to the imposed displacement amplitude. That is,\nthe wear rate rapidly increases within the displacement amplitude range of 0.05 mm to 0.09 mm,\nwhile the wear rate gradually increases when the displacement amplitude is greater than 0.2 mm.\nThe obtained results provide the friction and wear behaviors of cold rolled high strength steel in\nfretting and reciprocal sliding regimes.
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