Tensile properties of bare-rolled ingot-sheet beryllium from room temperature to 800$sup 0$C

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Tensile properties of bare-rolled ingot-sheet beryllium from room temperature to 800 deg C are reported. While strength values show a steady decrease above room temperature, tensile elongations exhibit peaks at approximately 300 and 700 deg C. The strainhardening exponent varies with temperature and amount of strain, and ranges between approximately 0.10 and 0.26. Metallographic examinations reveal cleavage fracture at the lower temperatures, accompanied by severe grain deformation above room temperature. This is followed by a temperature range in which ductile rupture occurs, and finally, at the higher temperatures, grainboundary failure. The low BeO content of this material and the post-rolling ... continued below

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Pages: 22

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Miley, D.V. & Brugger, R.P. December 13, 1973.

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Tensile properties of bare-rolled ingot-sheet beryllium from room temperature to 800 deg C are reported. While strength values show a steady decrease above room temperature, tensile elongations exhibit peaks at approximately 300 and 700 deg C. The strainhardening exponent varies with temperature and amount of strain, and ranges between approximately 0.10 and 0.26. Metallographic examinations reveal cleavage fracture at the lower temperatures, accompanied by severe grain deformation above room temperature. This is followed by a temperature range in which ductile rupture occurs, and finally, at the higher temperatures, grainboundary failure. The low BeO content of this material and the post-rolling heat treatment given to the sheet are factors which improve the high-temperature ductility as compared to other grades of beryllium. (auth)

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Pages: 22

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Dep. NTIS

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  • Other Information: Orig. Receipt Date: 30-JUN-74

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  • Report No.: RFP--1704
  • Grant Number: AT(29-1)-1106
  • DOI: 10.2172/4385988 | External Link
  • Office of Scientific & Technical Information Report Number: 4385988
  • Archival Resource Key: ark:/67531/metadc1023632

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Office of Scientific & Technical Information Technical Reports

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  • December 13, 1973

Added to The UNT Digital Library

  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 27, 2017, 5:01 p.m.

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Miley, D.V. & Brugger, R.P. Tensile properties of bare-rolled ingot-sheet beryllium from room temperature to 800$sup 0$C, report, December 13, 1973; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc1023632/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.