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depleted uranium
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Published: 01 January 1989
Fig. 1 Normal flank wear encountered when cutting unalloyed, depleted uranium using two types of TNMP 432 carbide inserts (three views of each insert are shown). (a, b, c) Plain carbide (94WC-5.5Co-0.5TaC). (d, e, f) Titanium-nitride coated (TiC/TiCN/TiN coatings on a special-strengthened
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Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002192
EISBN: 978-1-62708-188-7
...Abstract Abstract This article focuses on the basic metallurgy and machining parameters of classes of depleted and enriched uranium alloys. It provides information on the health precautions applicable to the machining of depleted uranium alloys. The article also discusses tool wear...
Abstract
This article focuses on the basic metallurgy and machining parameters of classes of depleted and enriched uranium alloys. It provides information on the health precautions applicable to the machining of depleted uranium alloys. The article also discusses tool wear and the types of tools used in uranium alloy machining.
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001085
EISBN: 978-1-62708-162-7
... and precautions associated with processing depleted uranium and methods to control mild radioactivity, chemical toxicity, and pyrophoricity. It also describes the classification and heat treatment of uranium and uranium alloys. Furthermore, the article provides graphical representation of the effect of alloy...
Abstract
Uranium is a moderately strong and ductile metal that can be cast, formed, and welded by a variety of standard methods. This article presents an overview of the processing and properties of uranium and uranium alloys with a brief overview of the principal hazards and precautions associated with processing depleted uranium and methods to control mild radioactivity, chemical toxicity, and pyrophoricity. It also describes the classification and heat treatment of uranium and uranium alloys. Furthermore, the article provides graphical representation of the effect of alloy composition, cooling rate, and aging temperature on microstructure, crystal structure, and mechanical properties of uranium and uranium alloys.
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003780
EISBN: 978-1-62708-177-1
...Abstract Abstract This article discusses the principles of physical metallurgy and metallography of depleted uranium. It describes the techniques involved in the preparation of thin foils for transmission electron microscopy and illustrates the resulting microstructure of uranium and uranium...
Abstract
This article discusses the principles of physical metallurgy and metallography of depleted uranium. It describes the techniques involved in the preparation of thin foils for transmission electron microscopy and illustrates the resulting microstructure of uranium and uranium alloys, with the aid of black and white images. The article also provides information on the applications of etching and examination of uranium alloys, at both macro and micro scales, in characterizing the grain structures, segregation patterns, inclusions, and the metal flow geometries produced by solidification and mechanical working processes.
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006256
EISBN: 978-1-62708-169-6
...Abstract Abstract Heat treatment of depleted uranium (DU) alloys with 4.0 wt% or more molybdenum or equivalent is similar to that of dilute alloys. This article discusses the metallurgical characteristics and processing considerations of DU and its alloys, and describes the control of grain...
Abstract
Heat treatment of depleted uranium (DU) alloys with 4.0 wt% or more molybdenum or equivalent is similar to that of dilute alloys. This article discusses the metallurgical characteristics and processing considerations of DU and its alloys, and describes the control of grain size and orientation using beta treatment. It lists the typical mechanical properties of DU as functions of the amount of cold work and hardness data of uranium rod, and describes the annealing of cold-worked DU. The article also describes the heat treatment of dilute alloys of DU, focusing on the three basic furnace designs used for heating or heat treating of unalloyed uranium: molten salt baths, inert-atmosphere furnaces, and vacuum furnaces. Finally, it presents procedures that are examples of heat treatment used to meet certain specifications of ultimate tensile strength, yield strength, and elongation.
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003166
EISBN: 978-1-62708-199-3
... very high density materials: depleted uranium and tungsten and their alloys. applications depleted uranium design considerations health considerations mechanical properties metallurgy processing tungsten tungsten alloys uranium alloys very high density metals VERY HIGH DENSITY...
Abstract
Very high density materials are used for such applications as counterweights and radiation shields. This article focuses on the metallurgy, processing, properties, fabrication, design considerations, health and safety considerations, and applications of the most commonly used very high density materials: depleted uranium and tungsten and their alloys.
Book: Corrosion: Materials
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003839
EISBN: 978-1-62708-183-2
... constituents, chemical degradation of interphases and reinforcements, microstructure-influenced corrosion, and processing-induced corrosion. The article elaborates on the corrosion behavior of specific aluminum, magnesium, titanium, copper, stainless steel, lead, depleted uranium, and zinc MMCs systems...
Abstract
This article begins with the discussion on the background of metal-matrix composites (MMC) and moves into a broad description of the general parameters affecting the corrosion of MMC. It discusses the primary sources of MMC corrosion that include galvanic corrosion between MMC constituents, chemical degradation of interphases and reinforcements, microstructure-influenced corrosion, and processing-induced corrosion. The article elaborates on the corrosion behavior of specific aluminum, magnesium, titanium, copper, stainless steel, lead, depleted uranium, and zinc MMCs systems. It concludes with a description on the corrosion control of MMCs using protective coatings and inhibitors.
Image
Published: 01 January 1989
Fig. 3 Surface trace and surface finish of four identically machined metals and alloys. (a) Type 316 SS. (b) High-purity depleted uranium. (c) U-6Nb alloy. (d) U-0.75Ti alloy (age-hardened to 43 HRC). Identical test conditions include cutoff (0.8 mm, or 0.03 in.), drive speed (0.25 mm/s, or 0.01
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Book: Corrosion: Materials
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003828
EISBN: 978-1-62708-183-2
..., but the uranium in the oxygen-depleted region near the center of the glass was deeply pitted ( Ref 4 ). Waber also observed the anodic control of uranium corrosion by observing the effects of dissolved oxygen and addition of cupric ions ( Ref 6 ). In addition to showing the effects of oxygen on E corr...
Abstract
This article reviews general corrosion of uranium and its alloys under atmospheric and aqueous exposure as well as with gaseous environments. It describes the dependence of uranium and uranium alloy corrosion on microstructure, alloying, solution chemistry, and temperature as well as galvanic interactions between uranium, its alloys, and other metals. The article provides information on the atmospheric corrosion of uranium based on oxidation in dry air or oxygen, water vapor, and oxygen-water vapor mixtures depending upon particular storage conditions. The mechanism and morphology of hydride corrosion of uranium are discussed. The article provides information on environmentally assisted cracking, protective coatings, and surface modification of uranium and its alloys. It also summarizes the environmental, safety, and health considerations for their use.
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003331
EISBN: 978-1-62708-176-4
...-alloy steels, 290–450 MPa (42–65 ksi) yield stress, wrought; as rolled 190 149 Depleted uranium 187 … Zirconium and its alloys 179 112 Stainless steels, standard austenitic grades, wrought; annealed 170 143 Aluminum alloys, 7000 series 160 60 Malleable ferritic cast irons 156...
Abstract
This article is a comprehensive collection of tables that list the values for hardness of plastics, rubber, elastomers, and metals. The tables also list the tensile yield strength and tensile modulus of metals and plastics at room temperature. A comparison of various engineering materials, on the basis of tensile strength, is also provided.
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003587
EISBN: 978-1-62708-182-5
... (LiF), beryllium fluoride (BeF 2 ), uranium tetrafluoride (UF 4 ), and thorium fluoride (ThF 4 ), that are not appreciably reduced by available structural metals and alloys whose components (iron, nickel, and chromium) can be in near-thermodynamic equilibrium with the salt. A continuing program...
Abstract
Molten salts, or fused salts, can cause corrosion by the solution of constituents of the container material, selective attack, pitting, electrochemical reactions, mass transport due to thermal gradients, and reaction of constituents and impurities of the molten salt with the container material. This article describes a test method performed using thermal convection loop for corrosion studies of molten salts. It discusses the purification of salts that are used in the Oak Ridge molten salt reactor experiment. The article also reviews the corrosion characteristics of nitrates/nitrites and fluoride salts with the aid of illustrations and equations.
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006679
EISBN: 978-1-62708-213-6
... other ( Ref 12 ) Examination of corroded materials ( Ref 13 ) Determination of uranium and plutonium assays in nuclear fuel ( Ref 14 , 15 ) Electrochemical Cells The basic process of an electrochemical reaction requires an electrochemical cell comprised of two half cells...
Abstract
This article describes various methods of electrochemical analysis, namely coulometry, electrogravimetry, voltammetry, electrometric titration, and nanometer electrochemistry. The discussion covers the general uses, sample requirements, application examples, advantages, and limitations of these methods. Some of the factors pertinent to electrochemical cells are also provided. In addition, the article provides information on various potentiometric membrane electrodes used to quantify numerous ionic and nonionic species.
Book Chapter
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003685
EISBN: 978-1-62708-182-5
..., powder-metallurgy parts, fasteners, electrical black boxes, corrosion and SCC protection of depleted uranium and titanium alloys, and electromagnetic interference compatibility ( Ref 6 ). One of the first industrial applications of the IBAD process was the coating of stainless steel electric razor...
Abstract
Vapor-deposition processes fall into two major categories, namely, physical vapor deposition (PVD) and chemical vapor deposition (CVD). This article describes major deposition processes such as sputtering, evaporation, ion plating, and CVD. The list of materials that can be vapor deposited is extensive and covers almost any coating requirement. The article provides a table of some corrosion-resistant vapor deposited materials. It concludes with an overview of the applications of CVD and PVD coatings and a discussion on coatings for graphite, the aluminum coating of steel, and alloy coatings for aircraft turbines, marine turbines, and industrial turbines.
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006448
EISBN: 978-1-62708-190-0
Abstract
Radiography is the process or technique of producing images of a solid material on a paper/photographic film or on a fluorescent screen by means of radiation particles or electromagnetic waves of short wavelength. This article reviews the general characteristics and safety principles associated with radiography. There are two main aspects of safety: monitoring radiation dosage and protecting personnel. The article summarizes the major factors involved in both and discusses the operating characteristics of X-ray tubes. It describes the various methods of controlling scattered radiation: use of lead screens; protection against backscatter and scatter from external objects; and use of masks, diaphragms, collimators, and filtration. The article concludes with a discussion on image conversion media, including recording media, lead screens, lead oxide screens, and fluorescent intensifying screens.
Book Chapter
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001117
EISBN: 978-1-62708-162-7
... agent in the preparation of thorium, zirconium, uranium, chromium, vanadium, and the rare earths. It is also used as a deoxider, decarburizer, or desulfurizer for various ferrous and nonferrous alloys. Calcium is used as an alloying or modifying agent for aluminum, beryllium, copper, lead, tin...
Abstract
This article presents the following characteristics of pure metals : structure, chemical composition, mass characteristics, thermal properties, electrical properties, chemical properties, magnetic properties, optical properties, fabrication characteristics, nuclear properties, and mechanical properties.
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001739
EISBN: 978-1-62708-178-8
..., as with machined alloy chips. If samples are sieved, the fraction reserved for analysis must represent the desired analytical sample. Sometimes certain analytes are concentrated in fines and depleted in coarse fractions. Each part of this procedure is important, because subsequent analytical work is based...
Abstract
This article provides information on basic chemical equilibria, wet analytical chemistry, and the appropriateness of classical wet methods. It focuses on nonoxidizing acids and oxidizing acids. The article includes information on the qualitative methods used to identify materials by wet chemical reaction. Gravimetry, in which a chemical species is weighed; titrimetry, which involves volume measurement of a liquid reactant; and a host of separation techniques, which require diverse forms of laboratory manipulation, are discussed. The article briefly describes the partitioning of oxidation states as well as those applications in surface studies and rapid material identification in which chemical techniques have proved useful.
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001771
EISBN: 978-1-62708-178-8
... when one electron of the indicated quantum numbers n , l , j is missing. Figure 2 shows such a diagram for uranium. Also shown are the x-ray and spectroscopic notations corresponding to the n , l , j quantum numbers. Fig. 2 Energy-level diagram of an atom. The energy of the atom...
Abstract
This article provides a detailed account of the principles, instrumentation,and applications of x-ray photoelectron spectroscopy (XPS), a technique used for elemental and compositional analysis of surfaces and thin films. It reviews the nomenclature of energy states and sensitivity of electrons at the surface that are capable of producing peaks in XPS. Additionally, it presents information on the instrumentation and the preparation and mounting of samples for XPS analysis. The article explains qualitative analysis, namely, measuring of shifts in the binding energy of core electrons, multiplet splitting, and the Auger parameter; and quantitative analysis such as depth analysis carried out using XPS. It also discusses the applications of XPS with examples.
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001749
EISBN: 978-1-62708-178-8
... 82 (lead), all of which are radioactive. The naturally occurring thorium and uranium isotopes all decay by α-particle emission, producing daughters that are also radioactive and decay by α-particle emission or β-particle emission. This process continues until the decaying chain reaches an atomic...
Abstract
Radioanalysis is an analytical technique that uses energy emitted by radioactive isotopes to measure the concentration of related elements in test samples. This article begins with a discussion on the principles of radioactive decay and various forms of emission, including alpha and beta-particle emission, positron emission, and gamma and x-ray emission. It compares and contrasts measurement techniques based on various detectors, namely, charged-particle detectors, photon detectors, counting and recording instruments, and radioactive decay spectrometers. It also addresses sample preparation, equipment and process safety, and the handling of radioactive gasses and materials. The article concludes with application examples involving the analysis of rare-earth elements and nuclear fuels.
Book: Thermal Spray Technology
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005707
EISBN: 978-1-62708-171-9
... to a slow-growing aluminum oxide, usually alpha alumina. This is illustrated in Fig. 5 , a micrograph of a low-pressure plasma-sprayed NiCoCrAlY after several hours of service, showing both the protective alumina scale and the aluminum-depleted zone below it. Many of these coatings can be used as either...
Abstract
Coatings and other surface modifications are used for a variety of functional, economic, and aesthetic purposes. Two major applications of thermal spray coatings are for wear resistance and corrosion resistance. This article discusses thermal (surface hardening) and thermochemical (carburizing, nitriding, and boriding) surface modifications, electrochemical treatments (electroplating, and anodizing), chemical treatments (electroless plating, phosphating, and hot dip coating), hardfacing, and thermal spray processes. It provides information on chemical and physical vapor deposition techniques such as conventional CVD, laser-assisted CVD, cathodic arc deposition, molecular beam epitaxy, ion plating, and sputtering.
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001119
EISBN: 978-1-62708-162-7
...) minor toxic metals, including antimony, barium, indium, magnesium, silver, tellurium, thallium, tin, titanium, uranium, and vanadium. The main factors included in the discussion are their disposition, toxicity, biological factors and treatment. carcinogenicity chelating agents chelation therapy...
Abstract
Metal contamination of the environment reflects both natural sources and industrial activity, affecting human health. This article begins with a discussion on the level of metal exposure resulting in toxicological effects, the factors influencing toxicity of metals, and carcinogenicity of metal compounds. It discusses some commonly used chelating agents for treating metal intoxication, and clinical effectiveness in treating poisoning by different metals. The metals discussed are grouped into four categories: (1) major toxic metals with multiple effects, including arsenic, beryllium, cadmium, chromium, lead, mercury, and nickel; (2) essential metals with potential for toxicity, including cobalt, copper, iron, manganese, molybdenum, selenium, and zinc; (3) metals with toxicity related to medical therapy, including aluminum, bismuth, gallium, gold, lithium, and platinum; and (4) minor toxic metals, including antimony, barium, indium, magnesium, silver, tellurium, thallium, tin, titanium, uranium, and vanadium. The main factors included in the discussion are their disposition, toxicity, biological factors and treatment.