Effect of stress concentration and deformation temperature on the tensile property and damage behavior of a B4Cp/Al composite

An aluminum matrix composite reinforced by TiC and Al2O3 particles was synthesized using TiO2, C, and Al powder by the in-situ reaction. The effects of deformation parameters on the microstructure of the TiC-Al2O3/Al composite were investigated using XRD, SEM and TEM. The result shows that the strain rate and deformation temperature influence the size, styles, and distribution of the second phase. Reinforcements are dispersed in a distribution with increasing deformation temperature and strain rate. However, broken Al3Ti exhibits redissolution phenomenon. The new precipitated Al3Ti phase will precipitate from the strain-induced solid solution when the total strain increases to a certain degree at a high deformation temperature.

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Anisotropic Elastoplastic and Damage Behavior of SiCp/Al Composite Sheets

International Journal of Damage Mechanics ◽

10.1177/1056789508089231 ◽

2008 ◽

Vol 17 (3) ◽

pp. 247-272 ◽

Cited By ~ 6

Author(s):

D.A. Skolnik ◽

H.T. Liu ◽

H.C. Wu ◽

L.Z. Sun

Keyword(s):

Damage Behavior ◽

Al Composite

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The microstructure of a TiB2/Ti-47 Al composite material

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100155347 ◽

1989 ◽

Vol 47 ◽

pp. 674-675

Author(s):

O. Popoola ◽

A.H. Heuer ◽

P. Pirouz

Keyword(s):

Composite Material ◽

Ion Beam ◽

Chemical Properties ◽

Intermetallic Alloys ◽

Transmission Electron ◽

Diamond Polishing ◽

Al Composite ◽

The Matrix ◽

Argon Ion ◽

And Chemical Properties

The addition of fibres or particles (TiB2, SiC etc.) into TiAl intermetallic alloys could increase their toughness without compromising their good high temperature mechanical and chemical properties. This paper briefly discribes the microstructure developed by a TiAl/TiB2 composite material fabricated with the XD™ process and forged at 960°C.The specimens for transmission electron microscopy (TEM) were prepared in the usual way (i.e. diamond polishing and argon ion beam thinning) and examined on a JEOL 4000EX for microstucture and on a Philips 400T equipped with a SiLi detector for microanalyses.The matrix was predominantly γ (TiAl with L10 structure) and α2(TisAl with DO 19 structure) phases with various morphologies shown in figure 1.

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Estimated level of stress concentration in joints of welded pipes and fittings (welded tees) of main pipelines

Proceedings of Gubkin Russian State University of Oil and Gas ◽

10.33285/2073-9028-2019-4(297)-118-127 ◽

2019 ◽

pp. 118-127

Author(s):

G.I. Makarov ◽

Keyword(s):

Stress Concentration ◽

Main Pipelines

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Microstructure and Tensile Property of In-Situ (TiB+TiC) Particulate Reinforced Titanium Matrix Composites

Korean Journal of Metals and Materials ◽

10.3365/kjmm.2010.48.08.780 ◽

2010 ◽

Vol 48 (8) ◽

Keyword(s):

Tensile Property ◽

Matrix Composites ◽

Titanium Matrix ◽

Titanium Matrix Composites ◽

Particulate Reinforced

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A New Type of Precision Tire

Tire Science and Technology ◽

10.2346/1.2148806 ◽

1988 ◽

Vol 16 (4) ◽

pp. 200-207

Author(s):

O. B. Tretyakov

Keyword(s):

Stress Concentration ◽

Failure Rates ◽

Stress Strain ◽

Radial Tire ◽

Resonance Effects ◽

Precision Stage ◽

New Type ◽

Degree Of Order

Abstract A process is suggested for improving the rubber-cord composite in a radial tire through precision stage-by-stage molding of its parts. This starts by casting an inner elastomeric envelope of the carcass from a liquid oligomer mix. The full molding technology uses acoustic and resonance effects to optimize the degree of order of the structure and of rubber uniformity. The resultant precision tires should have a higher degree of order of both macro- and microstructure than do present commercial tires. Reduced stress concentration in locations that have high failure rates in commercial tires are considered. A new theory, CSSOT, is used for optimizing tires from results of stress-strain cycles.

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