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2017 | 132 | 3 | 941-943
Article title

Production and Characterization of Niobium Toughened Ti-TiAl₃ Metallic-Intermetallic Composite

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EN
Abstracts
EN
Ti-TiAl₃ in situ composites with 10 wt.% Nb were successfully prepared from Ti, Al, and Nb metallic powders by powder metallurgy processing technique of electric current activated/assisted sintering. The current and process time used for producing metallic-intermetallic composites were 2000 A and 90 s, respectively. In terms of fracture toughness, effects of addition of ductile niobium phase to Ti-TiAl₃ composites were investigated. According to SEM-EDS and XRD results, the synthesized composites mainly consisted of TiAl₃ matrix and dispersive Nb reinforcing phases, as well as ductile Ti phases. Hardness and fracture toughness values of the samples were measured by Vickers hardness tester under loads of 100 g and 10 kg, respectively. Fracture toughness value of TiAl₃ intermetallic composites was increased with Nb ductile phase addititon from 1.69± 0.05 MPa m^{1/2} to 5.23± 0.3 MPa m^{1/2}.
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EN
Contributors
author
  • Sakarya University, Metallurgy and Materials Department, Sakarya, Turkey
author
  • Sakarya University, Metallurgy and Materials Department, Sakarya, Turkey
References
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-app132z3-iip036kz
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