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stir casting

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Published: 01 December 2008
Fig. 6 (a) Schematic view of stir-casting process. Courtesy of N. Chawla. Microstructures of typical particulate cast metal-matrix composites made by stir casting: (b) Al-Si/20 vol% Gr p , (c) Al-Si/20 vol% spherical Al 2 O 3p , made by Comalco Australia, and (d) Al-SiC p , made by Duralcan More
Image
Published: 30 November 2018
Fig. 3 (a) Schematic view of stir-casting process. Courtesy of N. Chawla. Microstructures of typical particulate cast metal-matrix composites made by stir casting: (b) Al-Si/20 vol% Gr p , (c) Al-Si/20 vol% spherical Al 2 O 3p , made by Comalco Australia, and (d) Al-SiC p , made by Duralcan More
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006488
EISBN: 978-1-62708-207-5
... Abstract In general, metal-matrix composites (MMCs) are classified into three broad categories: continuous fiber-reinforced composites, discontinuous or short fiber-reinforced composites, and particle-reinforced composites. This article focuses on stir casting and melt infiltration as the two...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005339
EISBN: 978-1-62708-187-0
... of solidification processing of composites, namely, stir casting and melt infiltration. It describes the effects of reinforcement present in the liquid alloy on solidification. The article examines the automotive, space, and electronic packaging applications of MMCs. It concludes with information on the development...
Image
Published: 01 December 2008
Fig. 1 Microstructures of typical cast metal-matrix composites made by stir casting. (a) A356/20wt%Al 2 O 3 . (b) A356/15wt%SiC p More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005227
EISBN: 978-1-62708-187-0
... Abstract This article discusses the solidification of a matrix alloy in cast metal matrix composites (MMCs). It begins with a discussion on the mixing techniques in reinforcement incorporation and wettability of reinforcement. It describes the solidification processes, such as stir mixing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003163
EISBN: 978-1-62708-199-3
...) for 6061/SiC/ xx p-T6. Cast Aluminum MMCs In the stir casting (or mixing/vortex), the pretreated and prepared reinforcement filler phase is introduced in a continuously stirred molten matrix and then cast by sand, permanent mold, or pressure die casting. Melting under an inert gas cover combined...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006389
EISBN: 978-1-62708-192-4
... machining tool material with good wear resistance, fracture toughness, and high-temperature properties. Consequently, WC-base materials, including composited forms, have been successfully used as friction stir tool material for processing various aluminum and copper alloys as well as steels and cast iron...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006572
EISBN: 978-1-62708-290-7
... of reinforcement particles and little to no separation between the reinforcement particles and the matrix material. This is in contrast to more traditional MMC synthesis techniques such as stir casting, in which the wetting angle between the reinforcement and liquid matrix can cause issues with particle separation...
Image
Published: 01 December 2004
Fig. 24 Microstructure of AZ91D magnesium feedstock casting with electromagnetic stirring. Samples prepared by polishing to a 1 μm finish on a diamond then wheel etched with acetic picral. Courtesy of CANMET More
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005306
EISBN: 978-1-62708-187-0
... Abstract This article reviews the melt processing and casting of non-ferrous alloys, such as nickel alloys, titanium alloys, and lead alloys. It describes the lead refining steps, namely, copper drossing, softening, desilvering, zinc removal, bismuth removal, and final refining. casting...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006498
EISBN: 978-1-62708-207-5
... of aluminum having the special globular structure is typically accomplished by electromagnetically stirring the liquid metal during direct chill (DC) casting of cylindrical bars. As shown in the second image of Fig. 7 , as the metal is solidifying in the DC casting mold, an electromagnetic force is used...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005629
EISBN: 978-1-62708-174-0
... Abstract A key differentiator between friction stir welding (FSW) and other friction welding processes is the presence of a nonconsumable tool in FSW, often referred to as a pin tool to differentiate it from other tooling associated with the process. This article discusses materials...
Book Chapter

By Justin Heimsch
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005273
EISBN: 978-1-62708-187-0
... production methods used to produce suitable material for reheating: mechanical stirring, strain-induced melt activation, grain-refined direct-chill casting, and magnetohydrodynamic casting. These processes have been used to produce a wide variety of materials, ranging from simple binary alloys to exotic high...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005350
EISBN: 978-1-62708-187-0
... between the two samples for the same batch. Fig. 11 Schematic of the main elements of the Alcan jet stirrer Fig. 12 Typical Alcan jet stirrer installation in a top-charge melter For eight runs without stirring, the average silicon composition in the furnace at the end of the cast...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005908
EISBN: 978-1-62708-167-2
... melting processes and the improvements in the efficiency of melting processes in induction crucible furnaces. It provides energetic and ecological comparisons of different furnaces for melting of cast iron and aluminum. The article also describes the energy and power management of induction melting...
Book Chapter

By G. Keough
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005203
EISBN: 978-1-62708-187-0
... reactive metals (e.g., titanium and zirconium) that would otherwise attack the linings of a crucible with refractories. The solidified metal creates a corrosion-resistant protective layer on the containment vessel surface. Two methods of skull melt casting have evolved. The first, vacuum arc skull melting...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003790
EISBN: 978-1-62708-177-1
... of billet manufacture is by stirring solidifying metal mechanically or with magnetohydrodynamics (MHD). A second method is to extrude dendritic as-cast bar stock to refine the grain structure. This stress-induced melt-activation method (SIMA) is especially well suited in the manufacture of small-diameter...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003420
EISBN: 978-1-62708-195-5
... can be used to remove hydrogen that has been absorbed by the melt. Close control of melt temperature is needed to avoid overheating and subsequent formation of aluminum carbide. The melt must be gently stirred during casting to maintain a uniform dispersion of SiC particles. The ceramic...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005274
EISBN: 978-1-62708-187-0
... Abstract This article illustrates various rheocasting processes. These include new rheocasting, semisolid rheocasting, subliquidus casting, rheo-diecasting, swirled enthalpy equilibration device process, slurry-on-demand process, and continuous rheoconversion processes. rheocasting...