Behavior of ceramic particles at the solid- liquid metal interface in metal matrix composites

1988 ◽  
Vol 19 (11) ◽  
pp. 2847-2855 ◽  
Author(s):  
D. M. Stefanescu ◽  
B. K. Dhindaw ◽  
S. A. Kacar ◽  
A. Moitra
Keyword(s):  
Liquid Metal ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Metal Interface ◽  
Ceramic Particles ◽  
Solid Liquid

Induktive Erwärmung partiell verstärkter Presslinge*/Inductive heating of partially reinforced compacts - Heating experiments of partially particle-reinforced steel compacts for thixotropic forming operation

2017 ◽  
Vol 107 (10) ◽  
pp. 700-705
Author(s):  
B.-A. Prof. Behrens ◽  
D. Yarcu ◽  
T. Petersen ◽  
I. Ross
Keyword(s):  
Powder Metallurgy ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Heating Process ◽  
Inductive Heating ◽  
Matrix Composites ◽  
Ceramic Particles ◽  
Forging Process ◽  
Reinforced Steel ◽  
Powder Compacts

Mit der partiellen Einbringung von keramischen Partikeln in der Pulvermatrix lassen sich die lokalen Eigenschaften gezielt einstellen. Der Einsatz unterschiedlicher und heterogen verteilter Materialien in einem Werkstück wirkt sich auf den induktiven Erwärmungsprozess aus. Dieser Fachbeitrag beschäftigt sich mit Erwärmungsuntersuchungen an partiell partikelverstärkten Pulverpresslingen aus Stahl in den thixotropen Temperaturbereich für den anschließenden Schmiedeprozess.   Due to the partial incorporation of ceramic particles, locally improved properties can be achieved in powder metallurgy of metal matrix composites. The use of various and heterogeneous distributed materials in one workpiece has an effect on the inductive heating process. This article deals with investigations on heating at thixotropic temperature range of partially particle-reinforced powder compacts made of steel for the subsequent forging process.

Infiltration-Diffusional-Solidification (IDS): A P/M+Liquid Metal Infiltration Route for Processing Metal Matrix Composites

1998 ◽  
Vol 299-300 ◽  
pp. 380-391
Author(s):  
M.J. Lopes ◽  
F.F. Bianchi ◽  
H.N. Yoshimura ◽  
Francisco Ambrozio Filho ◽  
Hélio Goldenstein
Keyword(s):  
Liquid Metal ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Liquid Metal Infiltration ◽  
Metal Infiltration

Fabrication and tribological study of AA6061 hybrid metal matrix composites reinforced with SiC/B4C nanoparticles

2019 ◽  
Vol 71 (1) ◽  
pp. 83-93 ◽  
Author(s):  
Shubhajit Das ◽  
Chandrasekaran M. ◽  
Sutanu Samanta ◽  
Palanikumar Kayaroganam ◽  
Paulo Davim J.
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Hybrid Composites ◽  
Normal Load ◽  
Matrix Composites ◽  
Sliding Speed ◽  
Ceramic Particles ◽  
Content Type ◽  
Ceramic Nanoparticles ◽  
Hybrid Metal Matrix Composites

Purpose Composite materials are replacing the traditional materials because of their remarkable properties and the addition of nanoparticles making a new trend in material world. The nano addition effect on tribological properties is essential to be used in automotive and industrial applications. The current work investigates the sliding wear behavior of an aluminum alloy (AA) 6061-based hybrid metal matrix composites (HMMCs) reinforced with SiC and B4C ceramic nanoparticles. Design/methodology/approach The hybrid composites are fabricated using stir casting process. Two different compositions were fabricated by varying the weight percentage of the ceramic reinforcements. An attempt has been made to study the wear and friction behavior of the composites using pin-on-disc tribometer to consider the effects of sliding speed, sliding distance and the normal load applied. Findings The tribological tests are carried out and the performances were compared. Increase in sliding speed to 500 rpm resulted in the rise of temperature of the contacting tribo-surface which intensified the wear rate at 30N load for the HMMC. The presence of the ceramic particles further reduced the contact region of the mating surface thus reducing the coefficient of friction at higher sliding speeds. Oxidation, adhesion, and abrasion were identified to be the main wear mechanisms which were further confirmed using energy dispersive spectroscopy and field emission scanning electron microscopy (FESEM) of the worn out samples. Practical implications The enhancement of wear properties is achieved because of the addition of the SiC and B4C ceramic nanoparticles, in which these composites can be applied to automobile, aerospace and industrial products where the mating parts with less weight is required. Originality/value The influence of nanoparticles on the tribological performance is studied in detail comprising of two different ceramic particles which is almost new research. The sliding effect of hybrid composites with nano materials paves the way for using these materials in engineering and domestic applications.

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