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3 edition of Metallurgical and mechanical properties of thorium-doped Ir-0.3% W alloys found in the catalog.

Metallurgical and mechanical properties of thorium-doped Ir-0.3% W alloys

C. T. Liu

Metallurgical and mechanical properties of thorium-doped Ir-0.3% W alloys

by C. T. Liu

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Published by Dept. of Energy, Oak Ridge National Laboratory, for sale by the National Technical Information Service] in Oak Ridge, Tenn, [Springfield, Va .
Written in English

    Subjects:
  • Iridium,
  • Thorium,
  • Nuclear fuel claddings

  • Edition Notes

    StatementC. T. Liu, H. Inouye, A. C. Schaffhauser
    SeriesORNL ; 5616
    ContributionsInouye, H., joint author, Schaffhauser, A. C., joint author, Oak Ridge National Laboratory
    The Physical Object
    Paginationiii, 19 p. :
    Number of Pages19
    ID Numbers
    Open LibraryOL14881226M

      Buy Alloys of Thorium with Metals of Main Groups I to IV (Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th edition) on FREE SHIPPING on qualified orders. If the tost results on any sample for mechanical tests fail to satisfy the requirements for any of the mechanical properties, two more te.-^ts shall be done on sample collected from the same coil. If both the test results satisfy the relevant requirements, the lot shall be considered as conforming to the specification, otherwise not.

    Weldability and hot cracking in thorium-doped iridium alloys. S. A. David & C. T. Liu. Effect of metallurgical variables on grain size of high-speed tool steels. A. Basu, Influence of γ-Fe precipitates on physical and mechanical properties of Cu–Fe alloys. z. This article is a compilation of binary alloy phase diagrams for which thorium (Th) is the first named element in the binary pair. The diagrams are presented with element compositions in weight percent.

    Thorium is a naturally occurring, radioactive substance. In the environment, thorium exists in combination with other minerals, such as silica. Small amounts of thorium are present in all rocks, soil, water, plants, and contains an average of about 6 parts of thorium per million parts of soil (6 ppm). More than 99% of natural thorium exists in the form of thorium   In an alloy of Ir wt% W, the high temperature tensile impact ductility has been shown to be improved significantly by the addition of trace levels ( wt ppm) of thorium.


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Metallurgical and mechanical properties of thorium-doped Ir-0.3% W alloys by C. T. Liu Download PDF EPUB FB2

Get this from a library. Metallurgical and mechanical properties of thorium-doped Ir% W alloys. [C T Liu; H Inouye; A C Schaffhauser; Oak Ridge National Laboratory.]. Abstract Metallurgical and mechanical properties of Ir pct W alloys have been studied as a function of thorium concentration in the range 0 to ppm by weight.

The solubility limit of thorium in Ir pct W is below 30 ppm. Above this limit, the excess. An Ir% W alloy has been doped with minor alloying additions to develop an improved cladding material for space radioisotopic heat sources operating at temperatures to /sup 0/C. Tensile tests of a series of doped alloys at slow strain rates indicated that the DOP-4 alloy containing 40 Al, 30 Th, 80 Fe, 10 Ni, and 75 Rh ppm was most resistant to the brittle fracture associated with grain.

Metallurgical and mechanical properties of Ir pct W alloys have been studied as a function of thorium concentration in the range 0 to ppm by weight. The solubility limit of thorium in Ir pct W is below 30 ppm. Above this limit, the excess thorium reacts with iridium to form second-phase by:   Materials Science and Engineering, A () Deep drawing of Ir%W alloys D.

Harasyn Rosemount Inc., Market Boulevard, Chanhassen, MN (USA) R. Heestand and C. Liu Metals and Ceramics Division, Oak Ridge National Laboratory, P.O.

BoxOak Ridge, TN (USA) (Received Aug ; in revised form Decem ) Cited by: 3. Effect of Thorium Additions on Metallurgical and Mechanical Properties of Ir pct W Alloys C.

Liu, H. Inouye, A. Schaffhauser Pages OriginalPaper. Metallurgical and mechanical properties of Ir pct W alloys have been studied as a function of thorium concentration in the range 0 to ppm by weight. The solubility limit of thorium in Ir.

"Effect of Thorium Additions on Metallurgical and Mechanical Properties of Ir pct W Alloys," "Weldability and hot cracking in thorium-doped iridium alloys," Metals Technology, "Brittle Fracture in Polycrystalline Ir Pct W," METALLURGICAL TRANSACTIONS A,   C.T.

Liu, H. Inouye, A.C. SchaffhauserEffect of thorium additions on metallurgical and mechanical properties of Ir pct W alloys Metall Trans, 12A (), pp. Google Scholar. Metallurgical and Materials Transactions A. All Volumes & Issues. The effect of trace element additions on the grain boundary composition of Ir + pct W alloys.

Calvin L. White, Robert E. Clausing, Lee Influence of recrystallization behavior on the mechanical properties of XM stainless steel (22CrNi-5Mn-2MoN) J. Impurity effects were investigated in the iridium alloy, DOP (nominal composition, Ir– W– Th– Al), and the following conclusions were drawn: 1.

The elements Fe, Ni, Cr, and Al do not segregate to the grain boundaries of iridium even when present at bulk levels as high as – ppm. C.T. Liu, H. Inouye, A.C. SchaffhauserMetallurgical and mechanical properties of thorium-doped Ir wt.% W alloys Report ORNL, Oak Ridge National Laboratory, Oak Ridge, TN (April ) Google Scholar.

Abstract "Date declassified: Aug "--P. [2] of cover."Contract No. Weng""Novem ""BMI"Mode of access: Internet. Thorium Thoriumwhich alone makes up nearly all natural thorium, is the most common isotope of thorium in the isotope has the longest half-life ( x 10 10 years) of all isotopes with more than 83 protons.

In fact, its half-life is considerably longer than the age of earth. Therefore Th belongs to primordial nuclides. Th decays via alpha decay into Ra. Metallurgical and Materials Transactions A.

All Volumes & Issues. Vol Issue 6, June OriginalPaper. Structure and properties of hypoeutectic Al-Si-Mg alloys modified with pure strontium.

Closset, J. Gruzleski Weld Metal Grain Structure and Mechanical Properties of a Th-Doped Ir Pct W Alloy (DOP) C. Liu, S. Metallurgical and mechanical properties of Ir% W alloys have been studied as a function of thorium concentration in the range 0 to ppM by weight. The solubility limit of thorium in Ir% W is below 30 ppM.

Above this limit, the excess thorium reacts with iridium to form second-phase particles. C.T. Liu, H. Inouye, A.C.

Schaffhauser, Metallurgical and mechanical properties of Thorium-Doped Ir–% W Alloys, Report ORNL, Oak Ridge National Laboratory, April Metallurgical and mechanical properties of Ir% W alloys have been studied as a function of thorium concentration in the range 0 to ppM by weight.

The solubility limit of thorium in Ir alloys ir alloy zr Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related, expires Application number US10/, Other versions USA1 (en.

Growth of intermetallic layers between molybdenum and an iridium alloy (Ir wt.%W wt.%Th wt.%Al) has been evaluated over the temperature range – K, in argon and in vacuum.

Notable properties of magnesium-thorium alloys include high strength, creep resistance at high temperatures, and light weight. For example, the alloy designated HK31A, typically formed into sheets or plates, contains 3% thorium and % zirconium.Each science must have its own subject and its own method of research.

Certainly, all specialists will agree that metals and alloys, including their solid solutions, mechanical mix­ tures, and metallic compounds, form the subject of "physical metallurgy" or "physical chemis­ try of metals.".Mechanical properties of Thorium comprise of its density, tensile strength, viscosity, vapor pressure.