Microstructure and Mechanical Properties of Low-density NbTiAlCrSi Alloy AITranslate
Abstract AITranslate
NbTiAlSi alloy with a density of 6.0 g/cm3 was prepared by vacuum consumable arc melting,and its microstructure was observed and analyzed by using optical microscope,scanning electron microscope and X-ray energy dispersive spectrometer.The results show that the alloy microstructure is composed of the two phases of（Nb,Ti）5Si3 and（Nb,X）SS（X represents such elements as Ti,Al,Cr and so on）.（Nb,Ti）5Si3 phase presents continuous net distribution with strip and block pattern.The sizes of（Nb,Ti）5Si3 strip and block cannot be changed significantly,but the distribution of the second phase of（Nb,Ti）5Si3 changes from continuous strip and block pattern to discontinuous block pattern by 1 400 ℃/9 h homogenization annealing treatment of alloy ingot.The tensile strength of the hot-rolled alloy reaches 704 MPa,and it presents the performance of tensile brittle fracture at room temperature.The brittleness of the alloy is caused by the characteristics of the M5Si3-type compounds and the micropores existing on the interface of the second phase and substrate of the hot-rolled alloy.
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Basic Information:
DOI：
Chinese Library Classification Number:TG146.416[金属学及工艺—金属材料]
Citation Information:
NbTiAlSi alloy with a density of 6.0 g/cm3 was prepared by vacuum consumable arc melting,and its microstructure was observed and analyzed by using optical microscope,scanning electron microscope and X-ray energy dispersive spectrometer.The results show that the alloy microstructure is composed of the two phases of（Nb,Ti）5Si3 and（Nb,X）SS（X represents such elements as Ti,Al,Cr and so on）.（Nb,Ti）5Si3 phase presents continuous net distribution with strip and block pattern.The sizes of（Nb,Ti）5Si3 strip and block cannot be changed significantly,but the distribution of the second phase of（Nb,Ti）5Si3 changes from continuous strip and block pattern to discontinuous block pattern by 1 400 ℃/9 h homogenization annealing treatment of alloy ingot.The tensile strength of the hot-rolled alloy reaches 704 MPa,and it presents the performance of tensile brittle fracture at room temperature.The brittleness of the alloy is caused by the characteristics of the M5Si3-type compounds and the micropores existing on the interface of the second phase and substrate of the hot-rolled alloy.
quote
| GB/T 7714-2015 | [1] WANG Feng, ZHENG Xin, BAI Run, et al. Microstructure and Mechanical Properties of Low-density NbTiAlCrSi Alloy[J]. Rare Metals and Cemented Carbides, 2011(1): 25-29. |
| MLA | [1] WANG Feng, et al., "Microstructure and Mechanical Properties of Low-density NbTiAlCrSi Alloy." Rare Metals and Cemented Carbides, no. 1, 2011, pp. 25-29. |
| APA | [1] WANG Feng, ZHENG Xin, BAI Run, CAI Xiao-mei, WANG Dong-hui, XIA Ming-xing, & LI Zhong-kui. (2011). Microstructure and Mechanical Properties of Low-density NbTiAlCrSi Alloy. Rare Metals and Cemented Carbides(1), 25-29. |
| IEEE | [1] WANG Feng, ZHENG Xin, BAI Run, CAI Xiao-mei, WANG Dong-hui, XIA Ming-xing, and LI Zhong-kui, "Microstructure and Mechanical Properties of Low-density NbTiAlCrSi Alloy," Rare Metals and Cemented Carbides, no. 1, pp. 25-29, 2011. keywords: {NbTiAlCrSi alloy;arc melting;microstructure} |