TY - GEN
T1 - An experimental study on the effects of SiC on the sintering and mechanical properties of Cr3C2-NiCr cermets
AU - Ozer, Ali
AU - Kriven, Waltraud M.
AU - Tur, Yahya Kemal
PY - 2011
Y1 - 2011
N2 - Cr3C2-NiCr type cermets have been used in cutting industry since World War II for their relatively low sintering temperatures and relatively low densities. Their high corrosion resistance at high speeds and temperatures increases interest to these materials. In this study, the powder mixture of 75wt% Cr3C2-25wt% NiCr with a Ni-Cr weight ratio of 4/1 was produced as master composite at 1350°C for investigating its microstructure, micro/nano hardness and elastic modulus. SiC was added as reinforcement by decreasing the ceramic amount to study the effects on nanomechanical properties of Cr3C2-NiCr cermets. SEM and EDX analysis performed for identifying microstructures indicated that full densification occurs at 1350°C for master cermets. By increasing SiC ratio in cermets, the densification and relative density of doped cermets were not decreased even increased except for 8wt% SiC addition. Nanoindentation and elastic modulus tests were performed to characterize the mechanical properties of cermets.
AB - Cr3C2-NiCr type cermets have been used in cutting industry since World War II for their relatively low sintering temperatures and relatively low densities. Their high corrosion resistance at high speeds and temperatures increases interest to these materials. In this study, the powder mixture of 75wt% Cr3C2-25wt% NiCr with a Ni-Cr weight ratio of 4/1 was produced as master composite at 1350°C for investigating its microstructure, micro/nano hardness and elastic modulus. SiC was added as reinforcement by decreasing the ceramic amount to study the effects on nanomechanical properties of Cr3C2-NiCr cermets. SEM and EDX analysis performed for identifying microstructures indicated that full densification occurs at 1350°C for master cermets. By increasing SiC ratio in cermets, the densification and relative density of doped cermets were not decreased even increased except for 8wt% SiC addition. Nanoindentation and elastic modulus tests were performed to characterize the mechanical properties of cermets.
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U2 - 10.1002/9781118095355.ch25
DO - 10.1002/9781118095355.ch25
M3 - Conference contribution
AN - SCOPUS:80155157837
SN - 9781118059876
T3 - Ceramic Engineering and Science Proceedings
SP - 271
EP - 279
BT - Mechanical Properties and Performance of Engineering Ceramics and Composites VI - A Collection of Papers Presented at the 35th International Conference on Advanced Ceramics and Composites, ICACC'11
PB - American Ceramic Society
T2 - Mechanical Properties and Performance of Engineering Ceramics and Composites VI - 35th International Conference on Advanced Ceramics and Composites, ICACC'11
Y2 - 23 January 2011 through 28 January 2011
ER -