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Article
Relationship between fracture topography and fracture toughness of a high strength steel
The relationship between fracture topography and the plane strain fracture toughness of Comsteel En25 tempered at nine different temperatures and with crack planes in the R-L, R-C and L-R orientations has been...
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Article
On the prediction of tensile properties from hardness tests
The possibility of correlating the hardness to the tensile properties of a material has been investigated using Assab 760 steel, mild steel and API Std 5LX grade X60 pipeline steel that have been heat-treated ...
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Article
Recent development in the fabrication of metal matrix-particulate composites using powder metallurgy techniques
It is advantageous to fabricate metal matrix-particulate composites (MMPCs) using powder metallurgy (PM) because the fabricated composites possess a higher dislocation density, a small sub-grain size and limit...
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Article
Effects of gap filler and brazing temperature on fracture and fatigue of wide-gap brazed joints
The influence of gap filler content on the fracture, fatigue crack initiation and propagation of AISI 316 stainless steel wide-gap brazed with nickel-based filler metal has been investigated. The brazed joints...
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Article
Influence of heat treatment on properties of copper-based shape-memory alloy
An investigation was performed on a Cu-Zn-Al ternary alloy to examine the influence of heat treatment on its shape-memory effect. Four heat treatments were carried out, namely, step quenching, ice-water quench...
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Article
Synthesis of titanium diboride TiB2 and Ti-Al-B metal matrix composites
Titanium diboride TiB2 and TiAl aluminide composites reinforced with in situ borites have been synthesized from the elemental powders of Ti and B, and Ti, Al and B respectively using mechanical alloying technique...
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Article
Synthesis, microstructure and properties characterization of disintegrated melt deposited Mg/SiC composites
In the present study, elemental and silicon carbide reinforced magnesium materials were synthesized using an innovative disintegrated melt deposition method followed by hot extrusion. Microstructural character...
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Article
Improvement of microstructure and mechanical properties of AZ91/SiC composite by mechanical alloying
AZ91 magnesium alloy reinforced with SiC particulates was fabricated via powder metallurgy technique as well as mechanical alloying process where a planetary ball mill was employed. Microstructure and mechanic...
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Article
Grain growth and recrystallization of nanocrystalline Al3Ti prepared by mechanical alloying
The grain sizes and lattice strains during mechanical alloying of Ti-75 at.% Al powder mixtures were studied using X-ray diffraction methods. Nanocrystalline L12-Al3Ti was obtained after a certain time period of ...