Effects of Fe Content on Microstructure and Mechanical Properties of Ti(C,N)-based Cermets AITranslate
Abstract AITranslate
Ti（C_（0.7）N_（0.3））-WC-Mo_2C-TaC-Fe/Co/Ni series cermets were fabricated by low pressure sintering.The effects were investigated of Fe content on microstructure,phase composition and mechanical properties of the Ti（C,N）-based cermets.The results show that with the increase of Fe content,the volume fraction increases of the hard phase with white core-grey rim structure.In addition,a lot of M_（12）C-typeηphase transforms to M_（6）N-type brittle phase during solid-state sintering,and therefore higher Fe content can promote formation of the brittle phase in the cermets.The results of mechanical tests show that appropriate Fe substitution for Ni can obviously improve the fracture toughness and hardness of Ti（C,N）-based cermets,firstly increasing and then decreasing with the increase of Fe content.When Fe content is 2%,the cermet has the maximum hardness of 1 642 MPa and fracture toughness of 10.63 MPa·m1/2,higher than the cermet without Fe by 96 MPa and 11.3%,respectively.However,adding excessive Fe will greatly worsen the mechanical properties of the cermets,mainly due to the increase of M_6N-type brittle phase content in the cermet with high Fe content.
KeyWords AITranslate
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Basic Information:
DOI：
Chinese Library Classification Number:TG148[金属学及工艺—金属材料]
Citation Information:
Ti（C_（0.7）N_（0.3））-WC-Mo_2C-TaC-Fe/Co/Ni series cermets were fabricated by low pressure sintering.The effects were investigated of Fe content on microstructure,phase composition and mechanical properties of the Ti（C,N）-based cermets.The results show that with the increase of Fe content,the volume fraction increases of the hard phase with white core-grey rim structure.In addition,a lot of M_（12）C-typeηphase transforms to M_（6）N-type brittle phase during solid-state sintering,and therefore higher Fe content can promote formation of the brittle phase in the cermets.The results of mechanical tests show that appropriate Fe substitution for Ni can obviously improve the fracture toughness and hardness of Ti（C,N）-based cermets,firstly increasing and then decreasing with the increase of Fe content.When Fe content is 2%,the cermet has the maximum hardness of 1 642 MPa and fracture toughness of 10.63 MPa·m1/2,higher than the cermet without Fe by 96 MPa and 11.3%,respectively.However,adding excessive Fe will greatly worsen the mechanical properties of the cermets,mainly due to the increase of M_6N-type brittle phase content in the cermet with high Fe content.
quote
| GB/T 7714-2015 | [1] ZHU Gang, XIE Ming, LIU Ying, et al. Effects of Fe Content on Microstructure and Mechanical Properties of Ti(C,N)-based Cermets[J]. Rare Metals and Cemented Carbides, 2016(2): 30-34. |
| MLA | [1] ZHU Gang, et al., "Effects of Fe Content on Microstructure and Mechanical Properties of Ti(C,N)-based Cermets." Rare Metals and Cemented Carbides, no. 2, 2016, pp. 30-34. |
| APA | [1] ZHU Gang, XIE Ming, LIU Ying, CHEN Jia-lin, LI Zai-jiu, & YANG You-cai. (2016). Effects of Fe Content on Microstructure and Mechanical Properties of Ti(C,N)-based Cermets. Rare Metals and Cemented Carbides(2), 30-34. |
| IEEE | [1] ZHU Gang, XIE Ming, LIU Ying, CHEN Jia-lin, LI Zai-jiu, and YANG You-cai, "Effects of Fe Content on Microstructure and Mechanical Properties of Ti(C,N)-based Cermets," Rare Metals and Cemented Carbides, no. 2, pp. 30-34, 2016. keywords: {Ti（C;N）-based cermet;Fe-Co-Ni;low pressure sintering;microstructure;mechanical property} |