Effect of Nb on Microstructure and Mechanical Properties of MoNiB Based Cermets AITranslate
Abstract AITranslate
Mo2NiB2 based cermets doped with different molar contents(0,0.05%,0.1%,0.15%,0.2%) of Nb were prepared by spark plasma hot pressing sintering.The microstructure and mechanical properties of the cermets were studied by scanning electron microscope and electronic universal testing machine.The results show that Mo2NiB2 based cermets are mainly composed of Mo2NiB2 hard phase and Ni based binder phase.With the addition of Nb,the hardness of the cermets increases at first and then decreases,and reaches the maximum value of 1 203.4 HV at 0.05% Nb dosage.Nb replaces part of Mo to form a replacement solid solution,resulting in solid solution strengthening effect and increased hardness value.When Nb content is 0.05%,the Mo2NiB2 based cermet has the highest bending strength of 854.93 MPa.The main fracture mode is brittle cleavage fracture,and the fracture toughness decreases with the addition of Nb.
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Basic Information:
DOI：
Chinese Library Classification Number:TG148[金属学及工艺—金属材料]
Citation Information:
Mo2NiB2 based cermets doped with different molar contents(0,0.05%,0.1%,0.15%,0.2%) of Nb were prepared by spark plasma hot pressing sintering.The microstructure and mechanical properties of the cermets were studied by scanning electron microscope and electronic universal testing machine.The results show that Mo2NiB2 based cermets are mainly composed of Mo2NiB2 hard phase and Ni based binder phase.With the addition of Nb,the hardness of the cermets increases at first and then decreases,and reaches the maximum value of 1 203.4 HV at 0.05% Nb dosage.Nb replaces part of Mo to form a replacement solid solution,resulting in solid solution strengthening effect and increased hardness value.When Nb content is 0.05%,the Mo2NiB2 based cermet has the highest bending strength of 854.93 MPa.The main fracture mode is brittle cleavage fracture,and the fracture toughness decreases with the addition of Nb.
quote
| GB/T 7714-2015 | [1] ZHANG Liang, LI Wen-hu, AI Tao-tao, et al. Effect of Nb on Microstructure and Mechanical Properties of MoNiB Based Cermets[J]. Rare Metals and Cemented Carbides, 2020(5): 29-33. |
| MLA | [1] ZHANG Liang, et al., "Effect of Nb on Microstructure and Mechanical Properties of MoNiB Based Cermets." Rare Metals and Cemented Carbides, no. 5, 2020, pp. 29-33. |
| APA | [1] ZHANG Liang, LI Wen-hu, AI Tao-tao, & FAN Zhan-bo. (2020). Effect of Nb on Microstructure and Mechanical Properties of MoNiB Based Cermets. Rare Metals and Cemented Carbides(5), 29-33. |
| IEEE | [1] ZHANG Liang, LI Wen-hu, AI Tao-tao, and FAN Zhan-bo, "Effect of Nb on Microstructure and Mechanical Properties of MoNiB Based Cermets," Rare Metals and Cemented Carbides, no. 5, pp. 29-33, 2020. keywords: {Mo2NiB2 based cermet;Nb;microstructure;mechanical property;spark plasma hot pressing sintering technology} |