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Journal of Materials Science

, Volume 27, Issue 10, pp 2660–2664 | Cite as

Mechanical properties of vanadium beryllide, VBe12

  • T. G. Nieh
  • J. Wadsworth
  • F. C. Grensing
  • J. -M. Yang
Papers

Abstract

The mechanical properties of VBe12, both at room and elevated temperatures (up to 1200°C), have been measured. Room-temperature properties, including Young's modulus, flexural strength, and fracture toughness are reported. The material behaved elastically at room temperature but became plastic at temperatures above 1000°C. Creep properties of VBe12 were also studied in temperature ranges from 1000–1200°C and applied stress ranges from 33–58 MPa. At low strain rates (approximately < 10−5s−1), the stress exponent was about 4, suggesting deformation was controlled by dislocation climb. Microstructural examination indicated that fracture was initiated from grain boundaries subjected to tensile stresses. The creep behaviour of VBe12 is briefly compared with that of other intermetallics.

Keywords

Polymer Mechanical Property Vanadium Elevated Temperature Fracture Toughness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • T. G. Nieh
    • 1
  • J. Wadsworth
    • 1
  • F. C. Grensing
    • 2
  • J. -M. Yang
    • 3
  1. 1.Lockheed Missiles and Space Company, O/9310, B/204Palo AltoUSA
  2. 2.Brush Wellman CompanyClevelandUSA
  3. 3.Materials Science and Engineering DepartmentUniversity of CaliforniaLos AngelesUSA

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