High strength Al metal-matrix microcomposite wire with 20 vol% Nb and ultimate tensile strengths up to 1030 MPA

Thieme, C.L.H.; Pourrahimi, S.; Foner, S.

doi:10.1016/0956-716x(93)90055-w

Cited by 23 publications

(25 citation statements)

References 15 publications

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“…According to previous study on CU-X [2-10] and other DMMCS [11][12][13][14][15][16], the larger the deformation ratio, the higher the ultimate tensile strength. Tensile tests were done for the A1-Mg composites to see if a similar phenomenon exists here.…”

Section: Tensile Test Resultsmentioning

confidence: 99%

“…Assuming no volume change in deformation, a phase deformed by plane strain to a total strain of q=5 would elongate to 150 times its original length and reduce its thickness by more than 99%. Fitting such plane straining ribbons into an cylinder specimen is probably impossible even with the folding possible by basal slip [11,18].…”

Section: Microstructure and Texture Development In Deformationmentioning

confidence: 99%

“…Al containing body-centered cubic (BCC) second phase metals such as Nb, Fe, Cr or Ta [1][2][3][4][5][6][7][8][9][10][11][12]. Some recent studies of Ti-Y [13][14][15][16], Mg-Li-Ti [17][18][19], A1-Ti [20] have shown hexagonal close packed (HCP) metals' potential application in DMMC'S.…”

Section: Processed Metal Matrix Composites (Dmmc's)mentioning

confidence: 99%

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Microstructure-Strength Relationship of a Deformation-Processed Aluminum-Magnesium Composite

Xu¹

2000

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Section: Tensile Test Resultsmentioning

confidence: 99%

Section: Microstructure and Texture Development In Deformationmentioning

confidence: 99%

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Microstructure-Strength Relationship of a Deformation-Processed Aluminum-Magnesium Composite

Xu¹

2000

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“…In fact, Thieme et al, and Toda and Kobayashi, have reported that Al-Nb heavily deformed in-situ composites demonstrate superior strength and electrical conductivity [3][4][5] coupled with reasonable thermal stability. 6) Such heavy deformation was accomplished by swaging in the authors' study.…”

Section: Introductionmentioning

confidence: 99%

Image-Based Mechanical Analysis of Multifilamentary Microstructure Formation in Al–Fe Heavily Deformed <I>In-Situ</I> Composites

et al. 2005

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It has been reported that nano-scale multifilamentary microstructure, which has been readily available in Al-Nb systems, was hardly realized in Al-Fe heavily-deformed composites systems. In the present study, state-of-the-art techniques are applied to gain basic insight into the necessary requirement for the texture development of the Al-Fe composites. Three-dimensional finite element meshes were generated to monitor local stress and strain distributions in real materials. The approach taken in this study may be characterized as new type of the reverse engineering which is based on the visualization of microstructural features of materials. It has been clarified that local stress elevation occurs where the Fe phase is constricted or gnarled with flection when cutting chips are used as a matrix. Hydrostatic stress varies significantly in the Fe phase thereby promoting the plasticity of the Fe phase. Both sufficient strengthening of aluminum and irregular distribution of the embedded Fe phase are identified essential for multifilamentary microstructure formation.

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“…12,13 Work in HCP matrix DMMC's 14,15 has been more limited, but suggests that the ability of HCP metals to be axisymmetrically deformed to large true strains is limited by their tendency to assume texture orientations that permit only plane strain. Texture-induced plane straining would not necessarily be a limitation for rolled DMMC's, and one of the motivations for this study was to determine if anomalously high strengths would result from extensive deformation processing by rolling a twophase Sc -Ti DMMC.…”

mentioning

confidence: 99%

A high specific strength, deformation-processed scandium-titanium composite

Russell

Tian

Rose³

et al. 1999

J. Mater. Res.

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A 59% Sc–41% Ti deformation-processed metal-metal composite was produced by rolling to a true strain of 2.3 at 873 K followed by cold rolling to a total true strain of 3.6. Rolling reduced the original eutectoid microstructure to lamellae of α–Sc and α–Ti with average lamellar thicknesses of 150 nm (Sc) and 120 nm (Ti). The cold-rolled material had an ultimate tensile strength of 942 MPa and a specific strength of 259 J/g. The Sc matrix was oriented with the 〈0001〉 tilted 22° from the sheet normal direction toward the rolling direction, an unusual texture for an HCP metal with a low c/a ratio, which suggests Sc may deform primarily by basal slip.

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High strength Al metal-matrix microcomposite wire with 20 vol% Nb and ultimate tensile strengths up to 1030 MPA

Cited by 23 publications

References 15 publications

Microstructure-Strength Relationship of a Deformation-Processed Aluminum-Magnesium Composite

Microstructure-Strength Relationship of a Deformation-Processed Aluminum-Magnesium Composite

Image-Based Mechanical Analysis of Multifilamentary Microstructure Formation in Al–Fe Heavily Deformed <I>In-Situ</I> Composites

A high specific strength, deformation-processed scandium-titanium composite

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High strength Al metal-matrix microcomposite wire with 20 vol% Nb and ultimate tensile strengths up to 1030 MPA

Cited by 23 publications

References 15 publications

Microstructure-Strength Relationship of a Deformation-Processed Aluminum-Magnesium Composite

Microstructure-Strength Relationship of a Deformation-Processed Aluminum-Magnesium Composite

Image-Based Mechanical Analysis of Multifilamentary Microstructure Formation in Al&ndash;Fe Heavily Deformed <I>In-Situ</I> Composites

A high specific strength, deformation-processed scandium-titanium composite

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Product

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Image-Based Mechanical Analysis of Multifilamentary Microstructure Formation in Al–Fe Heavily Deformed <I>In-Situ</I> Composites