Download or read book Recrystallization of Beta heat treated Dingot uranium Cores written by R. R. Guyer and published by . This book was released on 1962 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book RECRYSTALLIZATION OF BETA HEAT TREATED DINGOT URANIUM CORES Topical Report written by and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Annealing beta-heat-treated production-size dingoturanium core blanks in the high alpha range (1150 to 1200 deg F) produced a fine, equiaxed grain size by a recrystallization process. The extent of recrystallization is dependent upon the rate of cooling through the beta-to-alpha transformation, the time and temperature of annealing, and whether or not impurities that retard grain growth are present. The cooling rate through the beta-to-alpha transformation was varied by using a range of beta temperatures and air cooling times prior to quenching into water. Longer air cooling times are permissible at the higher beta temperatures; however, the greatest amount of induced lattice strain was obtained after an air delay of only 2 seconds before quenching. Decreasing the annealing temperature results in a corresponding increase in the annealing time required for an equivalent amount of recrystallization. A second phase, present in the alloyed dingot metal, inhibited recrystallization and grain growth. Alloyed metal recrystallized progressively from the outer periphery to the center of the core, whereas unalloyed metal subjected to identical annealing conditions exhibited recrystallized grains throughout the cross section. A reduction in grain size from 0.38 mm to 0.25 mm occurred in a beta-treated, unalloyed core after annealing at 1200 deg F for 4 hours. The grain size of betaquenched, alloyed metal decreased from 0.28 mm to 0.19 mm on recrystallization. There appears to be change in the orientation of a beta-quenched core as a result of recrystallization. The beta quench-alpha anneal process could be integrated with an alpha-phase vacuum outgassing process to produce fine-grained metal that is essentially free of strain and preferred orientation and has a low hydrogen c ontent. (auth).

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1962 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Transformation Cooling Rate on the Activation Energy Required for Recrystallization of Beta Quenched Uranium written by H. R. Gardner and published by . This book was released on 1957 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book SUMMARY REPORT ON THE STUDY OF BETA TREATMENT OF URANIUM written by and published by . This book was released on 1963 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made on the effects of beta treatment variables on the texture, grain size, and distortion in unalloyed dingot and ingot uranium. The effects of delta heat treatment, various cooling regimes, recrystallization, etc., were studied. (D.L.C.).

Download or read book Reactor Technology written by Leonard E. Link and published by . This book was released on 1964 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alpha Phase Vacuum Outgassing of Dingot Uranium written by J. A. Fellows and published by . This book was released on 1961 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Cooling Rate on the Nucleation and Growth of Beta uranium Hydride in Metallic Uranium written by H. R. Gardner and published by . This book was released on 1956 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book EFFECT OF TRANSFER TIME ON THE RECRYSTALLIZATION BEHAVIOR OF BETA COOLED URANIUM written by and published by . This book was released on 1959 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the recrystallization behavior of beta-quenched uranium by incorporating the effects of transfer time from the beta heat-treating bath to the quench media. A critical transfer lime which relates to the time required to immerse samples at a temperature above the beta-alpha transformation in a quench media directly affects the beta-cooled structure and its ease of recrystallization upon alpha phase annealing. Within the critical transfer time, the ease of recrystallization and degree of grain refinement of beta-cooled samples as measured by alpha-phase annealing temperatures and times are superior to samples quenched beyond the critical transfer time. (auth).

Download or read book Summary Report on the Study of Beta Treatment of Uranium written by R. B. Russell and published by . This book was released on 1963 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preferred Orientation of Cold rolled and Recrystallized Uranium Plate written by William R. McDonell and published by . This book was released on 1957 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reactor Core Materials written by and published by . This book was released on 1962 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary Technical Report for the Period written by and published by . This book was released on 1964 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Process Development Quarterly Progress Report written by Mallinckrodt Chemical Works (Weldone Spring, Mo.) Uranium Division and published by . This book was released on 1960-10 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Heavy Water Moderated Power Reactors written by and published by . This book was released on 1962-05 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MCW written by and published by . This book was released on 19?? with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: