Evaluation of Forgings of 4330 Modified, 4340, and 98b40 Steels at High-strength Levels PDF Download
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Author: F. J. JR. RAGLAND
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Category :
Languages : en
Pages : 1
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Author: F. J. JR. RAGLAND
Publisher:
ISBN:
Category :
Languages : en
Pages : 1
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Author: United States. Wright Air Development Division
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Category : Aeronautics
Languages : en
Pages : 844
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Author:
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ISBN:
Category : Science
Languages : en
Pages : 466
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Author:
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ISBN:
Category : Science
Languages : en
Pages : 104
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 490
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Author: Defense Documentation Center (U.S.)
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Category : Science
Languages : en
Pages : 308
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Author:
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Category : Industrial design
Languages : en
Pages : 1284
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Issues for 1929- include section Contents noted (1929-1939 called Metallurgical abstracts; Jan. 1940- Sept. 1945 called Engineering digest; Oct. 1945- called Materials & methods digest) Annual indexes of the abstracts and digest were prepared 1929-1941; beginning in 1942, included in the complete index to the periodical.
Author:
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Category : Research
Languages : en
Pages : 1174
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Author:
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Category : Industrial design
Languages : en
Pages : 1094
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Author: David P. Kendall
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Category :
Languages : en
Pages : 2
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The effect of loading rates, ranging from 10 to 100,000 ksi square root of (in/sec), and temperatures, ranging from room temperature to -100F, on the plane strain fracture toughness of several high strength alloy steels has been determined. Materials investigated are a commercial 4340 steel, a modified 4330 steel from a gun tube forging having three different heat treatments and two different heats of 250 grade maraging steel. Test specimens utilized are essentially ASTM 'compact tension' type specimens of one inch thickness. Tests were conducted on an open loop, hydraulic, high loading rate tensile testing machine. Results are presented in the form of graphs of fracture toughness versus temperature for the maximum and minimum loading rates ('dynamic' and 'static'). Fracture toughness versus loading rate at -60F and yield strength versus elastic strain rate at room temperature, -60F and -100F for one heat of maraging steel are also reported. (Author).
