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Title:Disperzijsko utrjanje hitro strjene zlitine Cu-Zr
Authors:Anžel, Ivan (Author)
Kosec, L. (Author)
Križman, Alojz (Author)
Files:URL http://www.dlib.si/details/URN:NBN:SI:doc-HET9R9IQ
 
Language:Slovenian
Work type:Not categorized (r6)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Z oksidnimi delci disperzijsko utrjene bakrove zlitine se odlikujejo s kombinacijo dobre električne in toplotne prevodnosti, izboljšanimi mehanskimi lastnostmi in povečano stabilnostjo mikrostrukture pri povišanih temperaturah. Te zlitine so danes največkrat izdelane s postopkom notranje oksidacije binarnih zlitin Cu - Al z maksimalno 1,5 at.% Al, kar daje od 1-3 vol.% zelo finih disperzoidov ▫&Al_2O_3&▫. Koagulacija delcev ▫&Al_2O_3&▫ pri visokih temperaturah in velik vpliv mejne površine med matico in oksidnimi delci na njihovo sposobnost, da pri povišani temperaturi zavirajo gibanje dislokacij, narekujejo iskanje novih, primernejših delcev za disperzijsko utrjanje bakra. V prispevku predstavljamo rezultate raziskav, s katerimi smo ugotavljali možnosti doseganja drobne disperzije oksidov ▫&ZrO_2&▫ v bakrovi matici z notranjo oksidacijo hitro strjenih trakov zlitine Cu - Zr.
Year of publishing:1996
Publisher:Inštitut za kovinske materiale in tehnologije
Number of pages:str. 225-229
Numbering:Letn. 30, št. 3/4
UDC:669
ISSN on article:1318-0010
COBISS_ID:2162710 New window
NUK URN:URN:SI:UM:DK:GUBUFVFX
Views:656
Downloads:59
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Categories:Misc.
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Record is a part of a journal

Title:Kovine zlitine tehnologije
Shortened title:Kovine zlit. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1318-0010
COBISS.SI-ID:31742209 New window

Secondary language

Language:Unknown
Abstract:With oxide dispersion -strengthened copper alloys have a combination of high electrical and thermal conductivity, good mechanical properties and stability of microstructure at higher temperature. These alloys are commercially produced by internal oxidation of Cu - Al alloys with less than 1,5 at.% Al, yielding 1 - 3 vol.% of very fine ▫&Al_2O_3&▫ dispersoids. Dispersoid coarsening at higher temperature and great influence of the dispersoid - matrix interface on the efficiency with which the second phase inhibits dislocation motion, dictate to identify new, more effective dispersoids for copper matrices. The results presented in this paper show the feasibility of the rapid solidification - internal oxidation approach to produce fine dispersion of zirconium oxide (▫&ZrO_2&▫) in copper matrix.


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