Institute of Metals and Technology, Ljubljana (IMTLJ)
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Workability of austenitic stainless steels = Preoblikovalna sposobnost avstenitnih nerjavnih jekelTehovnik, Franc ...Preoblikovalnost jekla s strjevalno mikrostrukturo v vročem je boljša pri primarni kristalizaciji d-ferita, ker ta prepreči koncentracijo nečistoč v preostali meddendritni talini. Mehanizma mehčanja ... med preoblikovanjem v vročemavstenitnih nerjavnih jekel sta dinamična in statična rekristalizacija. d-ferit ni zmanjšal deformabilnosti jekla v temperaturnem območju med 1050 °C in 1250 °C, ne glede, ali je bil pri nižji temperaturi razporejen v obliki zvezne ali deloma prekinjene mreže okoli zrn avstenita, in pri višji temperaturi, ko je ferit v ovalnih delcih, ki so ločeni s široko plastjo avstenita. Nerjavno jeklo z masnim deležem svinca 0,0082 % s strjevalno mikrostrukturo je občutljivo za nastanek razpok po interdendritnih površinah, na katerih je večje število zrn svinca, ki jih je na meje odrinila napredujoča fronta strjevanja. Z vročim valjanjem klinastih preizkušancev smo ugotovili temperaturo in stopnjo deformacije, pri kateri je jeklo občutljivo za nastanek valjarniških napak. Med vročim valjanjem je d-ferit enako duktilenkot avstenit. Pri temperaturah preoblikovanja 1100 °C in 1150 ° in pri okoli 30-odstotni stopnji deformacije se na robovih vzorcev pojavijo prečne razpoke, v notranjosti vzorcev pa mikrorazpoke med avstenitom in ?-feritom, ki so posledica izcejanja žvepla.Source: Program in knjiga povzetkov = Program and book of abstracts (Str. 53)Type of material - conference contributionPublish date - 2008Language - english, slovenianCOBISS.SI-ID - 703402
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Tehovnik, Franc | 08001 |
Arzenšek, Boris | 08236 |
Arh, Boštjan | 10762 |
Vodopivec, Franc | 00142 |
Source: Personal bibliographies
and: SICRIS
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