Wear-related failures of nitrocarburized steels: Some microstructural and morphological observations
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This paper describes some characteristic microstructural and morphological features of nitrocarburized tool and die steels after wear testing (standard pin-on-disk technique). The steels under study are used for the fabrication of dies and molds for metal working (cold- and hot-work) and plastic injection molding. Surface spalling by interface failure and/or intralayer fracture was observed for the two classes of tool steels (AISI D6 and a CrMoV steel), and uniform surface layer removal by micropolishing and microcutting was observed on the precipitation-hardened (PH) stainless steel.
Keywordsmorphological aspects nitrocarburized steels surface fracture wear failures
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