Načini preprečevanja raztapljanja neravnotežnih trdnih faz v večfaznih mešanicah s talino

Lojen, Gorazd; Anžel, Ivan; Križman, Alojz

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Title:	Načini preprečevanja raztapljanja neravnotežnih trdnih faz v večfaznih mešanicah s talino
Authors:	ID Lojen, Gorazd (Author) ID Anžel, Ivan (Author) ID Križman, Alojz (Author)
Files:	http://www.dlib.si/details/URN:NBN:SI:doc-0D4ECOFK
Language:	Slovenian
Work type:	Not categorized
Typology:	1.01 - Original Scientific Article
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	Razvili smo model postopka izdelave kovinskih kompozitov s sintezo delno staljenih mešanic, ki združuje dobro omočljivost utrjevalne faze z dokaj širokimi možnostmi izbire njenega deleža v kompozitu. Po tem postopku izdelana kompozitna večfazna, delno staljena mešanica je sestavljena iz dveh ali več primarnih trdnih faz in taline. Faze v takšni mešanici so v splošnem termodinamsko nekompatibilne. Trdne faze so, preden se mešanica popolnoma strdi, nagnjene k hitremu raztapljanju. Ker so primarne trdne faze bistveni del mikrostrukture kompozita, je preprečevanje njihovega raztapljanja ključnega pomena za uspešno izdelavo kompozita. Model predvideva več načinov: -kinetično preprečevanje raztapljanja, -kemijsko zaščito nestabilnih trdnih faz in -termodidnamsko stabilizacijo kompozitne delno staljene mešanice. Izbira načina preprečevanja raztapljanja primaarnih trdnih faz pri izdelavi kompozita s sintezo delno staljenih mešanic je odvisna od željene kemijske sestave in mikrostrukture kompozita ter od predvidenih postopkov nadaljnje predelave.
Keywords:	kompoziti s kovinsko matico, delno staljene mešanice, večfazne mešanice, preprečevanje raztapljanja neravnotežnih trdnih faz
Publisher:	Inštitut za kovinske materiale in tehnologije
Year of publishing:	1999
Number of pages:	str. 313-318
Numbering:	Letn. 33, št. 5
PID:	20.500.12556/DKUM-53248
UDC:	669.018.95
ISSN on article:	1318-0010
COBISS.SI-ID:	163754
NUK URN:	URN:SI:UM:DK:JUFPK8F8
Publication date in DKUM:	10.07.2015
Views:	1377
Downloads:	53
Metadata:
Categories:	Misc.
:	LOJEN, Gorazd, ANŽEL, Ivan and KRIŽMAN, Alojz, 1999, Načini preprečevanja raztapljanja neravnotežnih trdnih faz v večfaznih mešanicah s talino. Kovine zlitine tehnologije [online]. 1999. Vol. 33, no. 5, p. 313–318. [Accessed 15 March 2025]. Retrieved from: http://www.dlib.si/details/URN:NBN:SI:doc-0D4ECOFK Copy citation

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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

Secondary language

Language:	English
Title:	Prevention of dissolving of inequilibrial solid primary phases in semicold mixtures
Abstract:	A processing model for production of particle reinforced metal matrix composites was developed. This process solves the problem of reinforcing phase wettability and variations of the phase fractions are also enabled. A semisolid composite mixture, produced in the proposed way, contains two or more primary solid phases, which are in general thermodinamically incompatible or at least inequilibrial with respect to their compositions and fractions. Since these solid faces are the essential part of the composite, their dissolution has to be prevented. In our processing model this is possible in more different ways: -kinetically, -by chemical protection of solid primary phases and -by thermodynamical stabilisation of the semisolid composite. The choicea depends on the desired chemical composition and microstructure of the composite and on expected technologies in further processing of the composite.
Keywords:	metal matrix omposites, semisolid mixtures, multiphase mixtures, prevention of dissolution of inequilibrial solid primary phases

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