期刊论文详细信息
JOURNAL OF ALLOYS AND COMPOUNDS 卷:752
Combination of reaction synthesis and Spark Plasma Sintering in production of Ti-Al-Si alloys
Article
Knaislova, A.1  Novak, P.1  Cabibbo, M.2  Prusa, F.1  Paoletti, C.2  Jaworska, L.3  Vojtech, D.1 
[1] Univ Chem & Technol, Dept Met & Corros Engn, Tech 5, Prague 16628, Czech Republic
[2] Univ Politecn Marche, DIISM, Via Brecce Bianche, I-60131 Ancona, Italy
[3] Inst Adv Mfg Technol, Wroclawska 37A, PL-30011 Krakow, Poland
关键词: Intermetallics;    Titanium aluminides;    Titanium silicides;    Microstructure;    X-ray diffraction;   
DOI  :  10.1016/j.jallcom.2018.04.187
来源: Elsevier
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【 摘 要 】

This work is devoted to the preparation of alloys based on intermetallic compounds in Ti-Al-Si system by powder metallurgy using Self-propagating High-temperature Synthesis (SHS). Since samples after SHS are very porous, in order to reduce the porosity, a combination of SHS, milling, and Spark Plasma Sintering (SPS), has been here tested as a complex production technology. Selected mechanical properties of consolidated samples (hardness, fracture toughness) and tribological properties (abrasive wear resistance) were determined. The microstructure of compacted Ti-Al-Si alloys is almost non-porous with the combination of titanium aluminides and titanium silicides. The alloys achieve good mechanical properties except for the fracture toughness. (C) 2018 Elsevier B.V. All rights reserved.

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