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The corrosion of 8081 and X-8001 aluminum alloys and the resultant formation of an adherent corrosion product on the corroding surface were investigated under conditions (except radiation) comparable to those that will exist on the surface of fuel-element cladding during operation of the Advanced Test Reactor. Since previous experiments indicated that corrosion penetration of the aluminum clad was unlikely during a reactor cycle provided the water chemistry is properly controlled, most of the studies in this investigation were concerned with the effect of variables on the rate of formation of corrosion- product films. These films have low thermal conductivity and can be a major factor in producing high fuel-element temperatures which lead to fuel-plate instabilities. The experimental procedures were the same as used in a similar study for the High Flux Isotope Reactor, but the ranges of variables investigated were greater than in previous studies. The 6061 and X-8001 alloys corroded to the same extent under the same test conditions until the corrosion product (boehmite) that formed on the surface bccame thick enough to spall spontaneously from the surface, usually about 2 mils thick. Spallation from the surface of the 6061 alloy was always accompanled by localized attack of the …

Intergranular cracking of Type 304 stainless steel outlet nozzles in reactor moderator service prompted a broad program of laboratory studies to determine the cause of the failures. It was demonstrated that sensitized and pickled Type 304 stainless steel is extremely susceptible to both intergranular and transgranular chloride stress corrosion cracking in hot water of pH 4.5 to 5.0 which contains as little as 2 ppM chloride ion. Although the chloride content of moderator is only about 0.01--0.03 ppM, it was concluded that chloride concentrations sufficient to cause cracking occurred on the nozzle surfaces, either very gradually or as a result of a system change. This conclusion was substantiated later when chlorides were shown to be concentrated in a film of aluminum oxide (from fuel cladding corrosion) deposited on the moderator side of a failed nozzle. Circumstantial evidence suggested that initiation of moderator pH (pD) control with nitric acid and oxygen caused or contributed to cracking of the nozzles. Therefore, in recent laboratory work the effects of pH and oxygen concentration on cracking of sensitized and pickled Type 304 stainless steel were investigated. The effects of nitrate and sulfate ion concentrations were also investigated. Results of these laboratory investigations are summarized …

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Thesis submitted to Univ. of Tennessee, Knoxville. Statistical methods were used in an attempt to determine the effect of the tendency to report accidents on the systemic variance in minor injury data over a 6-yr period. The population surveyed included 245 journeymen of 9 skilled craft groups continuously employed during the period. Results indicate that injury and non- injury visits to the dispensary were relatively stable during the 6-yr period and that there was a significant positive relation between non-occupational and injury visits during the period of study. (C.H.)

This book is a revision of "The Effects of Nuclear Weapons" which was issued in 1957. It was prepared by the Defense Atomic Support Agency of the Department of Defense in coordination with other cognizant governmental agencies and was published by the U.S. Atomc Energy Commission. Although the complex nature of nuclear weapons effects does not always allow exact evaluation, the conclusions reached herein represent the combined judgment of a number of the most competent scientists working the problem. There is a need for widespread public understanding of the best information available on the effects of nuclear weapons. The purpose of this book is to present as accurately as possible, within the limits of national security, a comprehensive summary of this information.

Technical report. From Abstract : "A number of the physical properties from which we can obtain both direct and indirect information concerning the band structures of metals, have been measured for most of the rare earth metals. It was thought that it would be desirable to review ans examine these data and try to tie them together. For this purpose the very low and room temperature heat capacities, Hall coefficients, magnetic susceptibilities, spectral data and electrical resistivities were examined."

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This report discusses the results of a number of runs that were made using the "Flow Vibration Progress" as was discussed in Part II of WANL-TME-447.

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Letter from Imperial Sugar Company to stockholders informing them of the upcoming annual meeting.

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Letter from Edward R. Thompson, Jr., for Cecile B. Kempner to Messrs. Martin-Marietta Corporation discussing the missing record of a check from July 1963.

Letter from Isaac H. Kempner to N. F. Abramowitz turning down a deal in honor of the charity and in honor of his mother and father.

Letter from John W. Stanford to Maury Maverick, Jr. a letter Stanford wrote to the Internal Revenue Service requesting an extension due to his inability to get a year-end inventory for his book service.