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Author : W. E. Anable,Robert A. Beall
Publisher : Unknown
Page : 22 pages
File Size : 45,5 Mb
Release : 1965
Category : Electron beam furnaces
ISBN : UOM:39015078512954
Author : Nagaiyar Krishnamurthy,Chiranjib Kumar Gupta
Publisher : CRC Press
Page : 841 pages
File Size : 44,9 Mb
Release : 2015-12-02
Category : Science
ISBN : 9781466576384
New Edition Now Covers Recycling, Environmental Issues, and Analytical DeterminationEmploying four decades of experience in the rare metal and rare earths industry, the authors of Extractive Metallurgy of Rare Earths, Second Edition present the entire subject of rare earth elements with depth and accuracy. This second edition updates the most impor
Author : Walter R. Witzke
Publisher : Unknown
Page : 28 pages
File Size : 51,5 Mb
Release : 1966
Category : Electron beam furnaces
ISBN : UIUC:30112106775585
Ingot structures resulting from electron-beam melting of tungsten consist mainly of columnar grains extending the length of the ingot. In order to examine the grain refining capabilities of various elemental and refractory compound additions, small ingots of tungsten containing these additions were prepared by electron-beam melting. Measurements on transverse ingot sections from each melt indicated that all the additions decreased the average grain diameter of the columnar grains typical of electron-beam melted tungsten and that grain refining effectiveness varied with the concentration of the solute S. Losses of the additions during melting were in excess of 90 percent in many cases. The most potent grain refiner was boron. A nominal addition of 0. 5 weight percent decreased the average grain diameter of the columnar grains from 0. 48 to 0. 008 centimeter. The effectiveness of the elemental additions decreased in the following order: boron, yttrium, carbon, hafnium, zirconium, molybdenum, columbium, rhenium, and tantalum. The losses of these elements during melting also decreased in approximately the same order. The elemental additions were generally more effective grain refiners than the refractory compounds. The elements with the smallest distribution coefficients were the most effective grain refiners.
Author : A. W. Deurbrouck,Alla D. Mah,Arnold B. Hubbard,Arthur R. Taylor,David E. Fogelson,Gerald E. Rennick,J. D. Spagnola,James S. Browning,John E. Miller,John P. Carter,Norman G. Foster,Robert C. Ellman,Robert C. Johnson,Robert L. Bolmer,Robert Lynn Crosby,Robert W. Smith,Thomas A. Morgan,W. E. Anable,William W. Weller,A. J. Carroll,Charles B. Kenahan,Dennis V. D'Andrea,Edwin B. Cook,John K. Alley,John W. Belter,K. A. Fowler,Paul E. Bennett,Robert A. Beall,Robert L. Rough,T. Estelle Gardner,William G. Fischer,David Schlain,Donald Eckhart Emerson,Leroy Dockter,R. L. Fischer,William J. Sturgis
Publisher : Unknown
Page : 594 pages
File Size : 51,5 Mb
Release : 1965
Category : Assaying apparatus
ISBN : OSU:32435067624122
Author : Anonim
Publisher : Unknown
Page : 664 pages
File Size : 54,5 Mb
Release : 1972
Category : Mineral industries
ISBN : UCSD:31822009770561
Author : Juel H. Stears
Publisher : Unknown
Page : 576 pages
File Size : 53,6 Mb
Release : 1965
Category : Mine roof bolting
ISBN : STANFORD:36105006336387
Author : Anonim
Publisher : Unknown
Page : 124 pages
File Size : 55,5 Mb
Release : 1959
Category : Metallurgical research
ISBN : UOM:39015086500371
Author : R. L. Martin,S. R. Seagle,O. Bertea
Publisher : Unknown
Page : 100 pages
File Size : 53,9 Mb
Release : 1961
Category : Electron beam furnaces
ISBN : UOM:39015095332709
Author : Anonim
Publisher : Unknown
Page : 1644 pages
File Size : 43,5 Mb
Release : 1971-10
Category : Nuclear energy
ISBN : PSU:000047759367
Author : United States. Bureau of Mines
Publisher : Unknown
Page : 450 pages
File Size : 46,8 Mb
Release : 1970
Category : Mineral industries
ISBN : UOM:39015095153972
Author : Anonim
Publisher : Unknown
Page : 1186 pages
File Size : 46,5 Mb
Release : 1966
Category : Mineral industries
ISBN : UOM:39015038883958
Author : United States. Bureau of Mines
Publisher : Unknown
Page : 824 pages
File Size : 55,6 Mb
Release : 1960
Category : Government publications
ISBN : UOM:39015013580801
Author : Anonim
Publisher : Unknown
Page : 304 pages
File Size : 55,7 Mb
Release : 1971
Category : Aeronautics
ISBN : UIUC:30112106768267
Author : Anonim
Publisher : Unknown
Page : 80 pages
File Size : 53,9 Mb
Release : 1963-06
Category : Metallurgical research
ISBN : UOM:39015095059633
Author : Anonim
Publisher : Unknown
Page : 304 pages
File Size : 52,8 Mb
Release : 1969
Category : Nuclear reactors
ISBN : UOM:39015095087386
