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discontinuously reinforced aluminum

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004002
EISBN: 978-1-62708-185-6
...Abstract Abstract Discontinuously reinforced aluminum (DRA) alloy metal-matrix composites (MMCs) represent an advanced aluminum materials concept whereby ceramic particles, or whiskers, are added to aluminum-base alloys through the use of either ingot-melting or casting and/or powder-metallurgy...
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
... metal infiltration. It reviews the powder metallurgy processing of aluminum MMCs and deformation processing of discontinuously reinforced aluminum composites. The article concludes with a discussion on the processing of fiber-reinforced aluminum. aluminum-matrix composites stir casting...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003448
EISBN: 978-1-62708-195-5
...Abstract Abstract Metal-matrix composites (MMCs) are used in structural applications, and in applications requiring wear resistance, thermal management, and weight savings. This article summarizes the mechanical and thermal properties of discontinuously reinforced aluminum MMCs, laminated...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001101
EISBN: 978-1-62708-162-7
... presents an overview of the status of MMCs, and provides information on physical and mechanical properties, processing methods, distinctive features, and various types of continuously and discontinuously reinforced aluminum, magnesium, titanium, copper, superalloy, and intermetallic-matrix composites...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002414
EISBN: 978-1-62708-193-1
...Abstract Abstract This article reviews the tensile properties and toughness characteristics of discontinuously reinforced aluminum (DRA) composites in terms of particle spacing, particle size, volume fraction, matrix alloy, and matrix microstructure. Both fracture toughness data and impact...
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
..., pressure infiltration casting, liquid metal infiltration, spray deposition, and powder metallurgy methods. It describes the processing of continuous fiber-reinforced aluminum, discontinuously, reinforced titanium, and continuous fiber-reinforced titanium. The article concludes with information on work done...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003358
EISBN: 978-1-62708-195-5
... materials systems used for aerospace structural applications are silicon carbide and boron carbide particulate reinforcement in an aluminum alloy matrix. The article concludes with information on reinforcement chemistry for designing DRMMC materials systems. particulate reinforcements discontinuously...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001421
EISBN: 978-1-62708-173-3
... used reinforcement materials in discontinuously reinforced aluminum (DRA) composites are silicon carbide (SiC) and aluminum oxide (Al 2 O 3 ). Consequently, this article focuses on composites that incorporate these specific materials. A review of Al-MMC joining technology up to 1975 is provided in Ref...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003472
EISBN: 978-1-62708-195-5
...Abstract Abstract This article focuses on the techniques used in recycling of aluminum metal matrix composites (MMCs) such as discontinuous SiC reinforced aluminum MMCs and continuous reinforced aluminum MMCs. It provides a discussion on the properties of recycled aluminum MMCs and disposal...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003485
EISBN: 978-1-62708-195-5
.... Discontinuously reinforced aluminum (DRA) MMCs have isotropic properties and provide specific stiffness values that are higher than those of aerospace metal alloys by as much as 100%. While the highest levels of specific stiffness are obtained by using higher volume fractions of particulate reinforcement, good...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003163
EISBN: 978-1-62708-199-3
... (SiC), boron, aluminum oxide (Al 2 O 3 ), and refractory metals. Discontinuous reinforcements consist mainly of SiC in whisker (w) form, particulate (p) types of SiC, Al 2 O 3 , and titanium diboride (TiB 2 ), and short or chopped fibers (c) of Al 2 O 3 or graphite. Aluminum-Matrix Composites...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003484
EISBN: 978-1-62708-195-5
... material cost of cast iron or steel is less than $0.60/kg ($0.25/lb), and discontinuously reinforced aluminum (DRA) cast ingot currently costs about $3.30 to 4.40/kg ($1.50 to 2.00/lb) for large-scale production, so that the raw material cost of MMCs is higher than that of the material typically replaced...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003350
EISBN: 978-1-62708-195-5
..., including high chemical inertness, high shear strength, and good property retention at high temperatures. Early work on sintered aluminum powder was a precursor to discontinuously reinforced MMCs. The development of high-strength monofilaments—first boron and then silicon carbide (SiC)—enabled significant...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003371
EISBN: 978-1-62708-195-5
... of the ventral fin has been increased significantly by the use of discontinuously reinforced aluminum (DRA). The role of matrix properties becomes more important in discontinuously reinforced composites compared to the continuous composite, due to a difference in the strengthening mechanisms for both...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003480
EISBN: 978-1-62708-195-5
... true for silicon carbide particle-reinforced aluminum (often called Al/SiC in the electronic packaging industry and discontinuously reinforced aluminum, or DRA, in the aerospace industry), which is one of the most important of the new composite packaging materials. In the following sections...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004007
EISBN: 978-1-62708-185-6
... in Fig. 9 . Fig. 8 Effect of reinforcement size on extrusion pressure versus ram travel discontinuously reinforced aluminum. Source: Ref 28 , 75 Fig. 9 Effect of reinforcement size and strain on damage to reinforcement in hydrostatically extruded billet. Source: Ref 28 , 75...
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
...), and discontinuously reinforced cast aluminum ingot currently costs approximately $4.0 to 5.0/kg ($1.8 to 2.3/lb) for large-scale production, so the raw material cost of MMCs is higher than that of the material typically replaced. However, the MMC component would typically weigh 60% less than steel, significantly...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006551
EISBN: 978-1-62708-210-5
...Abstract Abstract Aluminum alloys are widely used in engineered components because of their excellent strength-to-weight ratio. Their use in applications requiring wear resistance is more limited. One of the main limitations of aluminum alloys is the poor tribological behavior mainly due...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006510
EISBN: 978-1-62708-207-5
...General guidelines on product thickness of aluminum alloys for joining by various welding processes Table 1 General guidelines on product thickness of aluminum alloys for joining by various welding processes Process Minimum thickness Maximum thickness or area mm in. mm...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003971
EISBN: 978-1-62708-185-6
... Wrought gamma titanium products. (a) Compressor blades. (b) Subscale isothermally forged disk. (a) and (b) Source: D.U. Furrer, Ladish Company. (c) Large, conventionally (pack) rolled sheet. Source: Battelle Memorial Institute, Air Force Research Laboratory Discontinuously reinforced aluminum metal...