- Characteristics of Stainless Steel Composites with Nano-sized TiCxNy
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Tae-Ho Ban, Sung-Bum Park, Soo-Jeong Jo, Dong-Won Lee, Farkhod R. Turaev, Yong-Il Park, Sung-Jin Kim
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J Korean Powder Metall Inst. 2011;18(3):290-296.
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DOI: https://doi.org/10.4150/KPMI.2011.18.3.290
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- Titanium carbonitride is more perspective materials compared to titanium carbide. It can be used in tool industry and special products because of its higher strength, abrasive wear-resistance and especially its strong chemical stability at high temperatures. We produced STS+TiCxNy composite by the spark plasma sintering for higher strength and studied the characteristics. The planar and cross-sectional microstructures of the specimens were observed by scanning electron microscopy. Characterizations of the carbon and nitride phases on the surface of composite were carried out using an X-ray diffractometer. During annealing TiCxNy particles diffusion into STS 430 was observed. After annealing, sintering isolations between particles were formed. It causes decreasing of mechanical strength. In addition when annealing temperature was increased hardness increased. Heterogeneous distribution of alloying elements particles was observed. After annealing composites, highest value of hardness was 738.1 MHV.
- The Characteristic of Titanium Composites Including of Nano-sized TiNx for Stack Separator
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Sung-Bum Park, Tae-Ho Ban, Heung-Sik Woo, Sung-Jin Kim
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J Korean Powder Metall Inst. 2010;17(2):123-129.
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DOI: https://doi.org/10.4150/KPMI.2010.17.2.123
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Abstract
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- The fabrication of interconnect from titanium powders and TiN_x powders is investigated. Corrosion-resistant titanium and TiN_x are used as reinforcement in order to reveal high heat and corrosion resistance at the elevated temperature. We fabricated the plates for interconnect reinforced with TiN_x by mixing titanium powders with 10 wt.% of nano-sized TiN_x. Spark Plasma Sintering (SPS) was chosen for the sintering of these composites. The plate made of titanium powders and TiN_x powders demonstrates higher corrosion resistance than that of the plate of titanium powders alone. The physical properties of specimens were analyzed by performing hardness test and biaxial strength test. The electrochemical properties, such as corrosion resistance and hydrogen permeability at high temperature, were also investigated. The microstructures of the specimens were investigated by FESEM and profiles of chemical compositions were analyzed by EDX.
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Citations
Citations to this article as recorded by  - Mechanical properties of stainless steel composites with titanium carbonitride consolidated by spark plasma sintering
Bunyod Allabergenov, Oybek Tursunkulov, Amir Abidov, Soon-Wook Jeong, Sungjin Kim
Journal of Composite Materials.2016; 50(12): 1567. CrossRef
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