The System Zirconium-Iron-Tin. Summary Report No. 5 for July 1, 1957-- June 30, 1958

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The zirconium --iron--tin system was investigated up to the first compound in each binary system (ZrFe/sub 2/ and ZrSn) between the temperatures 500 and 1100 deg C. A careful study of the solubility of iron and tin in alphazirconium was also made betwen the temperatures 200 and 800 deg C. The alloys were prepared from ''Grade ''r iodide zirconium (as received and electron bombardment melted) and high purity iron and tin by nonconsumable-electrode are melting techiques under an inert atmosphere. Ingots were homogenized, cold worked when possible, cut or broken into small specimens, and given equilibration anneals at the prescribed ... continued below

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Pages: 61

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Tanner, L. E. July 29, 1958.

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Description

The zirconium --iron--tin system was investigated up to the first compound in each binary system (ZrFe/sub 2/ and ZrSn) between the temperatures 500 and 1100 deg C. A careful study of the solubility of iron and tin in alphazirconium was also made betwen the temperatures 200 and 800 deg C. The alloys were prepared from ''Grade ''r iodide zirconium (as received and electron bombardment melted) and high purity iron and tin by nonconsumable-electrode are melting techiques under an inert atmosphere. Ingots were homogenized, cold worked when possible, cut or broken into small specimens, and given equilibration anneals at the prescribed temperatures, Metallographic examination of the heat treated and quenched samples was the main method of investigation- X-ray diffraction and magnetic susceptibility techniques were also employed. The results of this program are summarized in 12 partial isothermal sections. The important features of the system indicate that there is little-solubility for tin in the compound ZrFe/sub 2/ The single-phase field is believed to exist in the vicinity of 55 wt, % Fe, The compound theta appears to be a continuous phase originating at the binary compound ( Zr/sub 4/Sn) and dissolving up to about 7.5 wt. % Fe while maintaining a constant tin composition of the order of 24.5 wt. %. A four-phase ternary eutectic (L in equilibrium BETA +i THETA + ZrFe/sub 2/) occurs ' between 930 and 935 deg C. It is likely that a four-phase ternary peritectoia ( BETA + THETA in equilibrium alpha + ZrFe/sub 2/) occurs at a temperature just above the binary zirconium-iron eutectoid (which takes place between 790 and 800 deg C). A four-phase ternary eutectoid ( BETA in equilibrium alpha THETA + ZrFe/sub 2/ taking place just above the zirconium - -iron eutectoid remains an alternate possibility. The solubility limit of alpha- zirconium was . found to be extremely low in the presenee of iron, falling below the most dilute binary iron and ternary alloys prepared at temperatures of 600 deg C and lower. (auth)

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Pages: 61

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  • Other Information: Project No. B 068. Orig. Receipt Date: 31-DEC-58

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  • Report No.: ARF-2068-5
  • Grant Number: AT(11-1)-315
  • DOI: 10.2172/4303115 | External Link
  • Office of Scientific & Technical Information Report Number: 4303115
  • Archival Resource Key: ark:/67531/metadc1020613

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  • July 29, 1958

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  • Oct. 15, 2017, 10:09 p.m.

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  • Jan. 17, 2018, 2:01 p.m.

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Tanner, L. E. The System Zirconium-Iron-Tin. Summary Report No. 5 for July 1, 1957-- June 30, 1958, report, July 29, 1958; Chicago, Illinois. (digital.library.unt.edu/ark:/67531/metadc1020613/: accessed August 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.