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contributor authorChhabra, Pankaj
contributor authorKaur, Manpreet
date accessioned2022-02-04T14:13:07Z
date available2022-02-04T14:13:07Z
date copyright2020/02/26/
date issued2020
identifier issn0742-4787
identifier othertrib_142_6_061401.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4273207
description abstractWear and surface damage of tools (die materials) in the hot metal forming industry is a critical problem observed and is producing an adverse effect on the process economy. The problem occurs when tool and workpiece interact at higher temperatures. However, the research related to the wear and friction of dies is still lacking. In the present investigation, tribological (wear and friction) studies were conducted with an aim to explore the potential of Cr3C2–NiCr surface coating. The high-velocity oxy-fuel (HVOF) spray technique was used to formulate the coatings. The microhardness, surface roughness, bond strength, and porosity of the coated specimens were found and analyzed. Subsequently, elevated-temperature wear and friction study of the uncoated and coated specimens were done in the laboratory. The study was conducted at 25 N and 50 N loads. The coated specimens showed an increase in wear resistance at all test parameters. The lowest value of coefficient of friction (COF) and the specific wear-rate for the coated specimens were observed at 400 °C. Wear mechanisms were studied by the scanning electron microscopy (SEM) technique. The wear mechanisms were observed to be adhesive in nature at room temperatures and the combination of abrasive/oxidative/adhesive in nature at higher temperatures for the Cr3C2–NiCr-coated specimens.
publisherThe American Society of Mechanical Engineers (ASME)
titleElevated-Temperature Wear Study of HVOF spray Cr3C2–NiCr-Coated Die Steels
typeJournal Paper
journal volume142
journal issue6
journal titleJournal of Tribology
identifier doi10.1115/1.4046017
page61401
treeJournal of Tribology:;2020:;volume( 142 ):;issue: 006
contenttypeFulltext


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