20.500.12556/DKUM-65188 Fatigue properties of sintered DIN SINT-D30 powder metal before and after heat treatment Lastnosti sintranega kovinskega prahu DIN SINT-D30 pri utrujanju pred toplotno obdelavo in po njej The main focus of this study was to determine how heat treatment affects the dynamic properties of sintered steel. All the specimens were made of the DIN SINT-D30 metal powder, but only half of them were additionally heat treated. Flat specimens were cold pressed and sintered. The second set was additionally heat treated to increase the strength. After the static mechanical properties were determined, the fatigue strength was investigated in a pulsating machine with a load ratio of R = 0. Wöhler curves were plotted and the parameters for determining the fatigue life (of' and b) were calculated. Glavni namen te študije je bil ugotoviti, kako toplotna obdelava vpliva na dinamične lastnosti sintranega jekla. Vsi vzorci so bili izdelani iz kovinskega prahu po DIN SINT-D30, vendar je bila samo polovica vzorcev dodatno toplotno obdelana. Ploščati vzorci so bili hladno stiskani in sintrani. Druga skupina je bila dodatno toplotno obdelana, da bi se povečala trdnost. Po ugotovitvi statičnih mehanskih lastnosti je bila preiskovana trdnost pri utrujanju na napravi za pulziranje z razmerjem obremenitve R = 0. Izrisana je bila Wöhlerjeva krivulja in izračunani so bili parametri za določanje časovne dinamične trdnosti (of’in b). powder metallurgy fatigue S-N curve prašna metalurgija utrujanje S-N krivulja true true true Inštitut za kovine in tehnologije v Sloveniji Angleški jezik Slovenski jezik Znanstveno delo 2017-03-16 12:20:35 2017-03-16 12:22:55 2025-09-22 14:54:15 2019-07-11 15:10:21 2014 0 0 Str. 837-840 št. 6 Letn. 48 2014 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 2013-09-30 2014-01-31 1580-2949 621.762:539.43 106193664 21045512 1580-2949 URN:SI:UM:DK:FJBSRQPP Materiali_in_Tehnologije_2014_Sori,_Sustarsic,_Glodez_Fatigue_Properties_of_Sintered_Din_Sint-D30_Powder_Metal_Before_and_After_Heat_Tre.pdf Materiali_in_Tehnologije_2014_Sori,_Sustarsic,_Glodez_Fatigue_Properties_of_Sintered_Din_Sint-D30_Powder_Metal_Before_and_After_Heat_Tre.pdf 1 3E2B150C8A576556BF4B7F97F1F38753 9b4094fbcf2486ca75a23f2751a316578e5e8ba15e088bb7336702e29066466f fdb5942d-7c0d-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=109862 http://mit.imt.si/Revija/izvodi/mit146/sori.pdf 1 https://dk.um.si/Dokument.php?lang=slv&id=109861 Fakulteta za naravoslovje in matematiko 0 0 0