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Author: Westinghouse Electric Corporation. Westinghouse Lamp Division
Publisher:
ISBN:
Category : Tungsten
Languages : en
Pages : 124
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Author: Westinghouse Electric Corporation. Westinghouse Lamp Division
Publisher:
ISBN:
Category : Tungsten
Languages : en
Pages : 124
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Author:
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ISBN:
Category : Science
Languages : en
Pages : 908
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 880
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Author: R. M. Evans
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Category : Brazing alloys
Languages : en
Pages : 86
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Author:
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Category : Government publications
Languages : en
Pages : 1654
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Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 292
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Author: A. R. Elsea
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ISBN:
Category : Steel
Languages : en
Pages : 52
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Book Description
THE ACHIEVEMENT AND MAINTENANCE OF DESIRED DIMENSIONS IN COMPLEX, PRECISION-BUILT STRUCTURES, SUCH AS ROCKET-MOTOR CASES, ARE CRITICAL AND TECHNICALLY INVOLVED PROBLEMS. Their proper functioning demands close dimensional tolerances. Dimensional stability is extremely difficult toACHIEVE IN STEELS AT ULTRAHIGH STRENGTH LEVELS. The problem stems from interacting metallurgical factors which manifest themselves in volumetric and shape changes. The principal sources of size change are the changes in specific volume accompanying the phase transformations which occur in hardening and tempering. Distortion occurs when a part deforms in response to stress. The problem of dimensional instability is analyzed, the factors involved are discussed, and recommendations are made regarding the control of these factors. (Author).
Author:
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Category : Power resources
Languages : en
Pages : 1468
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Author: Albert M. Hall
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Category : Nickel
Languages : en
Pages : 34
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Various aspects of the physical metallurgy of the 18 % nickel maraging steels are discussed in this report in the light of the knowledge which has thus far been accumulated on these steels. The 18 % nickel type of maraging steel was singled out for discussion because of its especially attractive combination of strength and fracture toughness, the comparative simplicity with which it can be hardened, and the relative ease with which it can be formed and joined. The highnickel maraging steels are considered to be outstanding members of a loose-knit family of agehardenable or precipitation-hardenable martensitic steels. Some comparisons and analogies are drawn among various members of this family with particular reference to the 18% nickel steels. (Author).
Author: Jet Propulsion Laboratory (U.S.)
Publisher:
ISBN:
Category : Jet propulsion
Languages : en
Pages : 24
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