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Effect of Alloying on the Microstructure and Fracture Toughness of Nb-Mo-Si Alloys

Effect of Alloying on the Microstructure and Fracture Toughness of Nb-Mo-Si Alloys
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摘要 It was found that typical Nbss /Nb5Si3 eutectic lamellar structure formed in the Nb-Mo-Si alloy. The interface between Nbss and Nb5Si3 phases was so strong that the alloy fractured mainly in the cleavage mode. In this paper, the fourth element was added with the aim of modifying interface structure. The microstructural characterization and the fracture toughness of Nb-17Si-10Mo ternary alloy doped with Ga, In, Zn and V, respectively, were investigated. It was revealed that the lamellar structure maintained with the addition of Ga and In, whereas it changed slightly with Zn and V additions. Moreover, a little increase in fracture toughness of Nb-17Si-10Mo ternary alloy was obtained through the addition of Ga and Zn. It was found that typical Nb44/Nb4Si3 eutectic lamellar structure formed in the Nb-Mo-Si alloy. The interface between Nb55 and Nb5Si3 phases was so strong that the alloy fractured mainly in the cleavage mode. In this paper, the fourth element was added with the aim of modifying interface structure. The microstructural characterization and the fracture toughness of Nb-17Si-10Mo ternary alloy doped with Ga, In, Zn and V, respectively, were investigated. It was revealed that the lamellar structure maintained with the addition of Ga and In, whereas it changed slightly with Zn and V additions. Moreover, a little increase in fracture toughness of Nb-17S i-10Mo ternary alloy was obtained through the addition of Ga and Zn.
出处 《稀有金属材料与工程》 SCIE EI CAS CSCD 北大核心 2009年第A03期58-61,共4页 Rare Metal Materials and Engineering
基金 Supported by the Aviation Science Foundation of China (Grant No 200601104)
关键词 共晶层状结构 铌钼硅合金 物理性能 结构分析 niobium-silicon-molybdenum microstructure fracture toughness casting
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参考文献14

  • 1Bewlay B P, Lewandowski J J, Jackson M R. JOM[J], 1997, 49(8): 44.
  • 2Jackson M R, Bewlay B P, Rowe R G et al. JOM[J], 1996, 48(1): 39.
  • 3Subramanian P R, Mendiratta M G, Dimiduk D M. JOM[J], 1996, 48(1): 33.
  • 4Hanada S. Reports of the 123 Committee on Heat-Resisting Metal and Alloys (JSPS)[J], 1997, 38:299.
  • 5Massalski T B, Okamoto H, Subramanian P R et al. Binary Alloy Phase Diagrams[M]. Ohio: ASM, 1992.
  • 6Nekkanti R M, Dimiduk D M. MRS Symp Proc[J], 1990, 194: 175.
  • 7Subramanian P R, Mendiratta M G, Dimiduk D M. JOM[J], 1996, 48:33.
  • 8Yamaguchi M, Inui H, Ito K. Acta Mater[J], 2000, 48:307.
  • 9Dimiduk D M, Perepezko J H. MRS Bull[J], 2003, 28:639.
  • 10Bewlay B P, Jackson M R, Zhao J C et al. MRS Bull[J], 2003, 28:646.

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