PREPARATION AND EVALUATION OF ALUMINUM-35 w/o URANIUM ALLOYS CONTAINING UP TO 3 w/o TIN OR ZIRCONIUM

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The effects of ternary additions of up to 3 wt.% Sn or Zr to an Al-35 wt.% U extrusion alloy were evaluated on the basis of casting characteristics, UAl/sub 3/ retention, extrusion behavior, mechanical properties, and corrosion resistance. Both additions increased the fluidity of the alloy, and both promoted retention of UAl/sub 3/. The best fluidity was obtained by a 2 wt.% Sn addition, while Zr was the more effective stabilizer of UAl/sub 3/. The retention of UAl/sub 3/ decreased the extrusion pressure needed for fabrication and caused a corresponding decrease in tensile and creep-rupture properties. Reductions in strength were … continued below

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30 pages

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Daniel, N.E.; Foster, E.L. Jr. & Dickerson, R.F. July 29, 1960.

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The effects of ternary additions of up to 3 wt.% Sn or Zr to an Al-35 wt.% U extrusion alloy were evaluated on the basis of casting characteristics, UAl/sub 3/ retention, extrusion behavior, mechanical properties, and corrosion resistance. Both additions increased the fluidity of the alloy, and both promoted retention of UAl/sub 3/. The best fluidity was obtained by a 2 wt.% Sn addition, while Zr was the more effective stabilizer of UAl/sub 3/. The retention of UAl/sub 3/ decreased the extrusion pressure needed for fabrication and caused a corresponding decrease in tensile and creep-rupture properties. Reductions in strength were most noticeable at elevated temperatures. The 1000- hr stress-rupture strength of the binary alloy at 200 deg C (8300 psi) was approximately 25 and 11% higher, respectively, than the alloys containing 3 wt.% tin (6200 psi and 3 wt.% zirconium (7400 psi). The additions either slightly improved or had no effect upon the resistance of the Al-35 wt.% alloy in 150 deg C demineralized water. (auth)

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30 pages

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  • Other Information: Orig. Receipt Date: 31-DEC-60

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  • July 29, 1960

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Daniel, N.E.; Foster, E.L. Jr. & Dickerson, R.F. PREPARATION AND EVALUATION OF ALUMINUM-35 w/o URANIUM ALLOYS CONTAINING UP TO 3 w/o TIN OR ZIRCONIUM, report, July 29, 1960; Columbus, Ohio. (https://digital.library.unt.edu/ark:/67531/metadc872517/: accessed June 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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