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Title: EFFECT OF CARBON ON THE DIMENSIONAL CHANGES OF IRON-BASED POWDER METALLURGY COMPACTS
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EFFECT OF CARBON ON THE DIMENSIONAL CHANGES OF IRON-BASED POWDER METALLURGY COMPACTS
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1314-2704
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English
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17
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61
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The purpose of this paper was to study the effect of carbon content on the dimensional characteristics of some powder metallurgy (PM) materials. The powders used in this study are atomized pure iron and prealloyed iron-based powders with Cu, Ni and Mo. Some elements as copper, nickel, molybdenum, manganese and phosphorus are the most common alloying element added in powders form because of its low cost, availability and capability to improve the properties of alloys. The particle size of the analyzed powders is ranging from 45 to 150 ?m. The powders were mixed for 30 minutes to obtain a homogenous mass. The powders were single pressed resulting green compacts. The applied pressure was 600 MPa and the disc specimens have the dimensions of ? 8 ? 6 mm. The green compacts were sintering in a laboratory furnace at 1150? C for 90 minutes. After sintering, the compacts were subjected to a thermochemical treatment, carburization in fluidized bed. The fluidized bed carburizing conditions were heating at 930° C during 60 minutes. Specimens were then air-cooled to room temperature. The density of green, sintered and carburized in fludized bed specimens, the mechanical properties and dimensional changes were evaluated.
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conference
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17th International Multidisciplinary Scientific GeoConference SGEM 2017
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17th International Multidisciplinary Scientific GeoConference SGEM 2017, 29 June - 5 July, 2017
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Proceedings Paper
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STEF92 Technology
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International Multidisciplinary Scientific GeoConference-SGEM
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Bulgarian Acad Sci; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci & Arts; Slovak Acad Sci; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; World Acad Sci; European Acad Sci, Arts & Letters; Ac
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119-124
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29 June - 5 July, 2017
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website
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cdrom
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4365
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powder metallurgy; carbon; dimensional characteristics
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