Effect of Nano-La2O3 Doping on Microstructure and Mechanical Properties of Mo2NiB2 Based Cermets AITranslate
Abstract AITranslate
Based on the composition of Ni-6 B-53.3 Mo,Mo2NiB2 based cermets with different content of nano-La2O3 particles(0,0.3%,0.6%,0.9%,1.2%)were prepared by vacuum hot pressing sintering technology,and their microstructure and mechanical properties were studied.The results show that doping La2O3 can improve the solubility of hard phase and Ni based binding phase of Mo2NiB2 based cermets,reduce the grain size and make the distribution of Ni based binding phase more uniform.With the increase of La2O3 content,the bending strength,hardness and compressive strength of Mo2NiB2 based cermets increase first and then decrease.The cermet with 0.6%La2O3 has the maximum bending strength and hardness of 603.55 MPa and 902.1 HV,respectively.The cermet with 0.3%La2O3 has the maximum compressive strength of 550 MPa.However,with the increase of La2O3 content,both the fracture toughness and density of Mo2NiB2 based cermets decrease.
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:
Based on the composition of Ni-6 B-53.3 Mo,Mo2NiB2 based cermets with different content of nano-La2O3 particles(0,0.3%,0.6%,0.9%,1.2%)were prepared by vacuum hot pressing sintering technology,and their microstructure and mechanical properties were studied.The results show that doping La2O3 can improve the solubility of hard phase and Ni based binding phase of Mo2NiB2 based cermets,reduce the grain size and make the distribution of Ni based binding phase more uniform.With the increase of La2O3 content,the bending strength,hardness and compressive strength of Mo2NiB2 based cermets increase first and then decrease.The cermet with 0.6%La2O3 has the maximum bending strength and hardness of 603.55 MPa and 902.1 HV,respectively.The cermet with 0.3%La2O3 has the maximum compressive strength of 550 MPa.However,with the increase of La2O3 content,both the fracture toughness and density of Mo2NiB2 based cermets decrease.
quote
| GB/T 7714-2015 | [1] ZHOU Pei-de, LI Wen-hu, AI Tao-tao, et al. Effect of Nano-La2O3 Doping on Microstructure and Mechanical Properties of Mo2NiB2 Based Cermets[J]. Rare Metals and Cemented Carbides, 2020(3): 33-37. |
| MLA | [1] ZHOU Pei-de, et al., "Effect of Nano-La2O3 Doping on Microstructure and Mechanical Properties of Mo2NiB2 Based Cermets." Rare Metals and Cemented Carbides, no. 3, 2020, pp. 33-37. |
| APA | [1] ZHOU Pei-de, LI Wen-hu, AI Tao-tao, & DONG Hong-feng. (2020). Effect of Nano-La2O3 Doping on Microstructure and Mechanical Properties of Mo2NiB2 Based Cermets. Rare Metals and Cemented Carbides(3), 33-37. |
| IEEE | [1] ZHOU Pei-de, LI Wen-hu, AI Tao-tao, and DONG Hong-feng, "Effect of Nano-La2O3 Doping on Microstructure and Mechanical Properties of Mo2NiB2 Based Cermets," Rare Metals and Cemented Carbides, no. 3, pp. 33-37, 2020. keywords: {vacuum hot pressing sintering;Mo2NiB2 based cermet;La2O3;microstructure;mechanical property} |