An experimental study on the effects of SiC on the sintering and mechanical properties of Cr3C2-NiCr cermets

Ali Ozer, Waltraud M Kriven, Yahya Kemal Tur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationMechanical 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
Pages271-279
Number of pages9
Edition2
StatePublished - Nov 7 2011
EventMechanical Properties and Performance of Engineering Ceramics and Composites VI - 35th International Conference on Advanced Ceramics and Composites, ICACC'11 - Daytona Beach, FL, United States
Duration: Jan 23 2011Jan 28 2011

Publication series

NameCeramic Engineering and Science Proceedings
Number2
Volume32
ISSN (Print)0196-6219

Other

OtherMechanical Properties and Performance of Engineering Ceramics and Composites VI - 35th International Conference on Advanced Ceramics and Composites, ICACC'11
CountryUnited States
CityDaytona Beach, FL
Period1/23/111/28/11

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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    Ozer, A., Kriven, W. M., & Tur, Y. K. (2011). An experimental study on the effects of SiC on the sintering and mechanical properties of Cr3C2-NiCr cermets. In 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 (2 ed., pp. 271-279). (Ceramic Engineering and Science Proceedings; Vol. 32, No. 2).