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dc.contributor.authorBekoz, Nuray
dc.contributor.authorOktay, Enver
dc.date.accessioned2021-03-03T14:41:25Z
dc.date.available2021-03-03T14:41:25Z
dc.identifier.citationBekoz N., Oktay E., "Mechanical properties of low alloy steel foams: Dependency on porosity and pore size", MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, cilt.576, ss.82-90, 2013
dc.identifier.issn0921-5093
dc.identifier.othervv_1032021
dc.identifier.otherav_3ae73ab2-0c02-4320-88df-368834ea11e4
dc.identifier.urihttp://hdl.handle.net/20.500.12627/43580
dc.identifier.urihttps://doi.org/10.1016/j.msea.2013.04.009
dc.description.abstractSteel foams can be used as lightweight and high-functional materials in applications such as transport vehicles, machines and structural parts due to their low cost, high strength, high heat resistance and good weldability. In this paper, low alloy steel foams (Fe-1.75Ni-1.5Cu-0.5Mo-0.6C) having porosities in the range of 47.8-70.9% with different pore sizes were produced by the space holder-water leaching technique in powder metallurgy. The structural and mechanical property variations resulting from the use of spacer particles having different amounts and sizes were investigated. Irregular carbamide particles were used as spacer. The porosity and pore size of steel foams replicated the initial amount and size of the spacer. Visual inspections were performed for the coated spacers having different sizes and amounts with steel powders after the final mixing. The amount and size of spacer determined the coatability of the mixtures. A decrease in pore size improves the strength of the steel foams by sharing the load with more and smaller pores; however, small pores having the highest porosity can impair the strength because no enough metals hold the integrity of the new pore walls. The influence of pore size on stress drop ratio of steel foams was also studied. The stress drop ratio decreased with decreasing porosity of steel foams. In addition, an increase in pore size caused a bigger stress drop ratio. However, the highest stress drop ratio was determined for small pores having the highest porosity due to the interconnection of macropores in the foam structure. (C) 2013 Elsevier B.V. All rights reserved.
dc.language.isoeng
dc.subjectMetalurji ve Malzeme Mühendisliği
dc.subjectYoğun Madde 1:Yapısal, Mekanik ve Termal Özellikler
dc.subjectYüzeyler ve arayüzeyler; İnce filmler ve nanosistemler
dc.subjectTemel Bilimler
dc.subjectMühendislik ve Teknoloji
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectMETALURJİ VE METALURJİ MÜHENDİSLİĞİ
dc.subjectMalzeme Bilimi
dc.subjectMALZEME BİLİMİ, MULTIDISCIPLINARY
dc.subjectTemel Bilimler (SCI)
dc.subjectFizik
dc.subjectNANOBİLİM VE NANOTEKNOLOJİ
dc.titleMechanical properties of low alloy steel foams: Dependency on porosity and pore size
dc.typeMakale
dc.relation.journalMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
dc.contributor.departmentİstanbul Üniversitesi , ,
dc.identifier.volume576
dc.identifier.startpage82
dc.identifier.endpage90
dc.contributor.firstauthorID29883


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