Microstructure Characterization and Fracture Toughness of Laves Phase-Based Cr–Nb–Ti Alloys

被引：0
|
作者：
Yun-Long Xue
Shuang-Ming Li
Hong Zhong
Lai-Ping Li
Heng-Zhi Fu
机构：
[1] Northwestern Polytechnical University,State Key Laboratory of Solidification Processing
[2] Northwest Institute for Non-Ferrous Metal Research,undefined
来源：
Acta Metallurgica Sinica (English Letters) | 2015年 / 28卷
关键词：
Laves phase-based alloys; Microstructure characterization; Fracture toughness; Crack propagation; Fracture;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Three Laves phase-based alloys with nominal compositions of Cr2Nb–xTi (x = 20, 30, 40, in at%) have been prepared through vacuum non-consumable arc melting. The results show that the microstructures of Cr2Nb-(20, 30) Ti alloys are composed of the primary Laves phase C15–Cr2(Nb,Ti) and bcc solid solution phase, while the microstructure of Cr2Nb–40Ti alloy is developed with the eutectic phases C15–Cr2(Nb,Ti)/bcc solid solution. The measured fracture toughness of ternary Laves phase C15–Cr2(Nb,Ti) is about 3.0 MPa m1/2, much larger than 1.4 MPa m1/2 for binary Laves phase Cr2Nb. Meanwhile, the fracture toughness of Cr2Nb–xTi (x = 20, 30, 40) alloys increases with increasing Ti content and reaches 10.6 MPa m1/2 in Cr2Nb–40Ti alloy. The eutectic microstructure and addition of Ti in Cr2Nb are found to be effective in toughening Laves phase-based alloys.
引用
收藏
页码：514 / 520
页数：6
相关论文
共 50 条
  • [1] Microstructure Characterization and Fracture Toughness of Laves Phase-Based Cr–Nb–Ti Alloys
    Yun-Long Xue
    Shuang-Ming Li
    Hong Zhong
    Lai-Ping Li
    Heng-Zhi Fu
    ActaMetallurgicaSinica(EnglishLetters), 2015, 28 (04) : 514 - 520
  • [2] Microstructure Characterization and Fracture Toughness of Laves Phase-Based Cr-Nb-Ti Alloys
    Xue, Yun-Long
    Li, Shuang-Ming
    Zhong, Hong
    Li, Lai-Ping
    Fu, Heng-Zhi
    ACTA METALLURGICA SINICA-ENGLISH LETTERS, 2015, 28 (04) : 514 - 520
  • [3] Characterization of fracture toughness and toughening mechanisms in Laves phase Cr2Nb based alloys
    Xue, Y. L.
    Li, S. M.
    Zhong, H.
    Fu, H. Z.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 638 : 340 - 347
  • [4] Formation of the Laves Phase in Nb-Ti-Cr-Si-X-Based Alloys
    Tewari, Raghvendra
    Vishwanadh, B.
    Vasudevan, Vijay K.
    TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 2022, 75 (04) : 931 - 939
  • [5] Formation of the Laves Phase in Nb-Ti-Cr-Si-X-Based Alloys
    Raghvendra Tewari
    B. Vishwanadh
    Vijay K. Vasudevan
    Transactions of the Indian Institute of Metals, 2022, 75 : 931 - 939
  • [6] Effect of Cr on Microstructure and Fracture Toughness of Nb-20Ti-16Si-xCr Alloys
    Liang, Tang
    Chaoli, Ma
    Xinqing, Zhao
    RARE METAL MATERIALS AND ENGINEERING, 2009, 38 : 8 - 12
  • [7] Effect of Cr on Microstructure and Fracture Toughness of Nb-20Ti-16Si-xCr Alloys
    Tang Liang Ma Chaoli Zhao Xinqing Beijing University of Aeronautics and Astronautics Beijing China
    稀有金属材料与工程, 2009, 38(S3) (S3) : 8 - 12
  • [8] Microstructure and mechanical properties of Cr-Ta-Si Laves phase-based alloys at elevated temperatures
    Bhowmik, Ayan
    Neumeier, Steffen
    Barnard, Jon S.
    Zenk, Christopher H.
    Goeken, Mathias
    Rae, Catherine M. F.
    Stone, Howard J.
    PHILOSOPHICAL MAGAZINE, 2014, 94 (34) : 3914 - 3944
  • [9] Microstructure and mechanical properties of Laves-phase alloys based on Cr2Nb
    Takeyama, M.
    Liu, C.T.
    Materials Science and Engineering A, 1991, A132 (1-2) : 61 - 66
  • [10] Addition of Ge to Cr-Ta-Si laves phase-based alloys
    Wilson, A. S.
    Pickering, E. J.
    Jones, C. N.
    Rae, C. M. F.
    Stone, H. J.
    INTERMETALLICS, 2021, 138
12345