| | SLO | ENG | Cookies and privacy

Bigger font | Smaller font
First page > Show document

Show document Help

Title:Analiza mikrostrukture kompozitov AlSi7-SiC, izdelanih po postopku tiksotropnega ulivanja
Authors:ID Rudolf, Rebeka (Author)
ID Križman, Alojz (Author)
Files:URL http://www.dlib.si/details/URN:NBN:SI:doc-BI48NDYR
 
Language:Slovenian
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Pri postopku tiksotropnega ulivanja intenivno mešamo trdno in tekočo fazo v dvofaznem področju, s čimer preprečimo normalno rast dendritov in povzročimo nastanek alfa-globulitnih zrn. Ta postopek se čedalje več uporablja pri izdelavi kompozitov, saj se dodani delci SiC gravitacijsko ne posedajo, prav tako pa ne splavajo na površino taline. Opazimo tudi izboljšanje stopnje omočljivosti ter enakomerne porazdelitve delcev SiC v kovinski osnovi. V tem prispevku podajamo analizo mikrostrukture izdelanega kompozita AlSi7-SiC. Raziskave so pokazale, da je enakomerna porazdelitev delcev SiC v kovinski osnovi odvisna od prostorninskega deleža teh delcev, časa izotermnega mešanja,temperature dvofaznega področja in hitrosti ohlajevanja s temperature dvofaznega področja sobne temperature. Prav tako pa je tudi stopnja sferoidizacije primarne faze alfaAl močno odvisna od deleža in oblike delcev SiC.
Keywords:livarstvo, tiksotropno ulivanje, globulitna mikrostruktura, kompoziti
Publisher:Inštitut za kovinske materiale in tehnologije
Year of publishing:1998
Number of pages:str. 185-191
Numbering:Letn. 32, št. 3/4
PID:20.500.12556/DKUM-53282 New window
UDC:621.74
ISSN on article:1318-0010
COBISS.SI-ID:3947030 New window
NUK URN:URN:SI:UM:DK:3P24OTE4
Publication date in DKUM:10.07.2015
Views:1367
Downloads:48
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
RUDOLF, Rebeka and KRIŽMAN, Alojz, 1998, Analiza mikrostrukture kompozitov AlSi7-SiC, izdelanih po postopku tiksotropnega ulivanja. Kovine zlitine tehnologije [online]. 1998. Vol. 32, no. 3/4, p. 185–191. [Accessed 15 March 2025]. Retrieved from: http://www.dlib.si/details/URN:NBN:SI:doc-BI48NDYR
Copy citation
  
Average score:
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
(0 votes)
Your score:Voting is allowed only for logged in users.
Share:Bookmark and Share


Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.

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:English
Title:The microstructure analysis of AlSi7-SiC composites made by thixocasting
Abstract:Thixocasting is a novel process where the liquid and the solid phse are vigorously stirred. The normal growing of dendrites is hindered and alpha primary globular crystals evolve. Materials produced in this way are very suited for metal matrix composites. By this procedure one achieves better homogeneity and wettability of reinforcement elements. It was found that a variety of ceramic particulates could be added to the semisolid slurry and kept in suspension without floating and settling. This paper deals with microstructure analysis of composites AlSi7-SiC made by the thixocasting procedure. The results show that the homogeneous distribution of SiC in the matrix depends on the volume fraction of SiC, particle size and morphology of SiC, isothermal stirring time, temperature in the semi-solid and cooling velocity from semi-solid to room temperature. The degree of spheroidization of alphaAl primary grains is strongly influenced by the peresence of SiC elements.
Keywords:casting, thixocasting, globular microstructure, composites


Comments

Leave comment

You must log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back
Logos of partners University of Maribor University of Ljubljana University of Primorska University of Nova Gorica