Effects of Composition and Heat Treatment on High-temperature Strength of Arc-melted Tungsten-hafnium-carbon Alloys PDF Download
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Author: L. S. Rubenstein
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 36
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Book Description
Author: L. S. Rubenstein
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 36
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Book Description
Author: L. S. Rubenstein
Publisher:
ISBN:
Category : Strength of materials
Languages : en
Pages : 29
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Author: William D. Klopp
Publisher:
ISBN:
Category : Materials at low temperatures
Languages : en
Pages : 44
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Author: Walter R. Witzke
Publisher:
ISBN:
Category : Tungsten-rhenium alloys
Languages : en
Pages : 24
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Book Description
The mechanical properties of rod and sheet fabricated from arc melted W-4Re-Hf-C alloys containing up to about 0.8 mol percent hafnium carbide (HfC) were evaluated in the as-worked condition. The DBTT's of electropolished bend and tensile specimens were independent of HfC content in this range but dependent on excess Hf or C above that required for stoichiometric HfC. Low temperature ductility was a maximum at Hf contents slightly in excess of stoichiometric. Variations in high temperature strength were also dependent on excess Hf and C. Maximum creep strengthening also occurred at Hf contents in excess of stoichiometric. Analysis of extracted second phase particles indicated that creep strength was reduced by increasing WC content in the HfC particles.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 524
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Author: United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 472
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Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 470
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 222
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Author: Peter L. Raffo
Publisher:
ISBN:
Category : Molybdenum alloys
Languages : en
Pages : 52
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Book Description
A study was made of the thermochemical processing of a series of Mo-Hf-C alloys. The processes either produced an overaged carbide precipitate within a strain hardened matrix or allowed the formation of a finer precipitate during fabrication by a dynamic strain aging reaction. The short time tensile properties of the strain aged alloys were superior to those of any other molybdenum alloy studied to date.
Author: Walter R. Witzke
Publisher:
ISBN:
Category : Tungsten-rhenium alloys
Languages : en
Pages : 36
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