Electron-beam fusion welding of beryllium

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Description

Ingot-sheet beryllium (Be) having three different chemistries and three different thicknesses was fusion-welded by the electron-beam process. Several different preheats were used to obtain 100% penetration and crack-free welds. Cracking susceptability was found to be related to aluminum (Al) content; the higher Al-content material was most susceptable. However, adequate preheat allowed full penetration and crack-free welds to be made in all materials tested. The effect of a post-weld heat treatment on the mechanical properties of these compositions was also determined. The heat treatment produced no significant effect on the ultimate tensile strength. However, the yield strength was decreased and the ... continued below

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Pages: 29

Creation Information

Campbell, R. P.; Dixon, R. D. & Liby, A. L. January 1, 1978.

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Description

Ingot-sheet beryllium (Be) having three different chemistries and three different thicknesses was fusion-welded by the electron-beam process. Several different preheats were used to obtain 100% penetration and crack-free welds. Cracking susceptability was found to be related to aluminum (Al) content; the higher Al-content material was most susceptable. However, adequate preheat allowed full penetration and crack-free welds to be made in all materials tested. The effect of a post-weld heat treatment on the mechanical properties of these compositions was also determined. The heat treatment produced no significant effect on the ultimate tensile strength. However, the yield strength was decreased and the ductility was increased. These changes are attributed to the formation of AlFeBe/sub 4/ and FeBe/sub 11/.

Physical Description

Pages: 29

Notes

Dep. NTIS, PC A03/MF A01.

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  • Report No.: RFP-2621
  • Grant Number: EY-76-C-04-3533
  • DOI: 10.2172/5172167 | External Link
  • Office of Scientific & Technical Information Report Number: 5172167
  • Archival Resource Key: ark:/67531/metadc1057285

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 1978

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

Description Last Updated

  • March 20, 2018, 1:02 p.m.

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Campbell, R. P.; Dixon, R. D. & Liby, A. L. Electron-beam fusion welding of beryllium, report, January 1, 1978; Golden, Colorado. (https://digital.library.unt.edu/ark:/67531/metadc1057285/: accessed March 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.