Properties of Sinters Produced from Commercially Available Powder Mixtures

• Autorzy: Borowiecka-Jamrozek J. , Lachowski J.
• Języki publikacji: EN

Abstrakty

EN

This paper discusses the mechanical properties of a material fabricated from commercially available metal powder mixtures designed for use as a metal matrix of diamond impregnated composites. The mixtures with the catalogue numbers CSA and CSA800 provided by a Chinese producer are suitable for experimental laboratory testing. The specimens were fabricated in a graphite mould using hot pressing. The material was tested for density, porosity, hardness, and tensile strength under static loading. A scanning electron microscope (SEM) was used to analyze the microstructure and cleavage fracture of broken specimens. It was essential to determine how the chemical composition and the fabrication process affected the microstructure and properties of the material. The properties of the sinters were compared with those of hot pressed specimens fabricated from sub-micron size cobalt powder (Cobalt SMS). Although the as-consolidated material is inferior to cobalt, it displays a favourable combination of hardness, yield strength and ductility, and seems to have a great potential for moderate and general purpose applications.

Słowa kluczowe

EN

composite; diamond; metal matrix; sinter; hot pressing

PL

kompozyt; diament; osnowa metalowa; spiek; prasowanie na gorąco

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2016
• Tom: Vol. 16, iss. 4
• Strony: 37--40
• Opis fizyczny: Bibliogr. 15 poz., rys., tab., wykr.

Twórcy

autor

Borowiecka-Jamrozek J.

• Faculty of Mechatronics and Machine Design, Department of Applied Computer Science and Armament Engineering, Kielce University of Technology, Al. Tysiąclecia PP. 7, 25-314 Kielce, Poland

autor

Lachowski J.

• Faculty of Management and Computer Modelling, Department of Applied Computer Science and Applied Mathematics, Kielce University of Technology, Al. Tysiąclecia PP. 7, 25-314 Kielce, Poland

Bibliografia

• [1] Konstanty, J. (2003). Cobalt as a matrix in diamond impregnated tools for stone sawing application, PhD thesis, 2nd Edition, AGH University of Science and Technology, Krakow, Poland.
• [2] Konstanty, J. (2005). Powder Metallurgy Diamond Tools, Elsevier, Oxford.
• [3] Konstanty, J. (2013). Sintered diamond tools: trends, challenges and prospects. Powder Metallurgy. 56(3), 184-188.
• [4] Romański, A. (2015). Development of metal matrix for sintered diamonds tools. Kraków: AGH University of Science and Technology, Poland. (In Polish).
• [5] Borowiecka-Jamrozek, J. (2013). Engineering structure and properties of materials used as a matrix in diamond impregnated tools. Archives of Metallurgy and Materials. 58(1), 5-8. DOI: 10.2478/v10172-012-0142-0.
• [6] Rimlinger, S. (1999). Cobalt and cobalt – containing binders for the diamond tools industry. The cobalt conference, The Royal Garden Hilton, London, England, 144.
• [7] Konstanty, J. & Bunsch, A. (1991). Hot pressing of cobalt powders. Powder Metallurgy. 34(3), 195-198.
• [8] Borowiecka-Jamrozek, J. & Konstanty, J. (2014). Microstructure and properties of a new iron-base material used for the fabrication of sintered diamond tools. Advanced Materials Research. 1052, 520-523. DOI: 10.4028/ www.scientific.net/AMR.1052.520.
• [9] Borowiecka-Jamrozek, J. & Lachowski, J. (2014). Numerical modelling of stress/strain field arising in diamond-impregnated cobalt. Archives of Metallurgy and Materials. 59(2), 443-446. DOI: 10.2478/amm-2014-0073.
• [10] Borowiecka-Jamrozek, J. (2013). Microstructure and properties of hot pressed Fe-50%Co materials. In 22nd International Conference METAL2013 (pp.1432-1437). Brno, Czech Republic, Thomson Reuters database.
• [11] Mechnik, A.(2014). Production of diamond-(Fe-Cu-Ni-Sn) composites with high wear resistance. Powder Metallurgy and Metal Ceramics. 52(9-10), 577-587.
• [12] Konstanty, J., Tyrała, D. & Radziszewska A. (2009). Iron-base materials manufactured from premixed powders by the hot press process. Archives of Metallurgy and Materials. 54(4), 1051-1058.
• [13] Nanbin, H. & Dianyue, G. (2013). The application development of Chinese multi-element pre-alloyed metal powders in diamond tools. Diamante, Applicazioni & Technologia. Diecembre 2013, 23-30.
• [14] CSA series Basic Alloy powder for Diamond Tools. (2013). User's Manual, Henan CUT-Stone Science & Technology, CO., LTD, Zhengzhou.
• [15] Borowiecka-Jamrozek, J. (2015). Microstructure and properties of hot pressed iron bronze powders. In 24th International Conference METAL 2015, Brno, Czech Republic, Paper will be added to the conference proceedings of full text for publishing in Thomson Reuters database.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.