首页> 美国政府科技报告 >FUNDAMENTAL AND APPLIED RESEARCH AND DEVELOPMENT IN METALLURGY Development of Zirconium-Base Alloys Strengthened by SLIS Techniques Summary Technical Report to the United States Atomic Energy Commission for the Period July 1, 1963 through June 30, 1964
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FUNDAMENTAL AND APPLIED RESEARCH AND DEVELOPMENT IN METALLURGY Development of Zirconium-Base Alloys Strengthened by SLIS Techniques Summary Technical Report to the United States Atomic Energy Commission for the Period July 1, 1963 through June 30, 1964

机译:冶金的基础和应用研究与开发sLIs技术强化的锆基合金的开发摘要1963年7月1日至1964年6月30日美国原子能委员会的技术报告

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A program was carried out to develop zirconium-base alloys by the SLIS technique in which fine dispersions are achieved with metallic particles. Beryllium, which has a negligible solid solubility with zirconium and forms the compound Be2Zr, was used as an alloying element with zirconium and Zircaloy 2. The selection of beryllium as an alloying element is based on two desirable features for nuclear reactor application. First, the reasonable corrosion resistance of Zr-Be alloys in high-temperature water and second, the fact that beryllium will lower the neutron cross-section of the material. Extrusion and drawing techniques were developed for seamless tubing of unalloyed tungsten and tungsten - 25 w/o rhenium with diameters below about 0.4-inch. Billets filled with molybdenum were used for both compositions. Four warm drawing techniques were shown to be feasible for both materials. Significant progress in drawing resulted from the establishment of swaging as a practical method of pointing. The fabrication program was guided by metallurgical evaluations. Both wrought and annealed tubing were examined to determine their microstructures and mechanical properties, notably ductility as determined in the ring compression test.

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