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Diffusional Creep And Creep Degradation In The Dispersion Strengthened Alloy Td Nicr
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Book Synopsis Diffusional Creep and Creep Degradation in the Dispersion-strengthened Alloy TD-NiCr by : John Daniel Whittenberger
Download or read book Diffusional Creep and Creep Degradation in the Dispersion-strengthened Alloy TD-NiCr written by John Daniel Whittenberger and published by . This book was released on 1972 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dispersoid-free regions were observed in TD-NiCr (Ni-20Cr-2ThO2) after slow strain rate testing in air from 1145 to 1590 K. Formation of the dispersoid-free regions appears to be the result of diffusional creep. The net effect of this creep is the degradation of TD-NiCr to a duplex microstructure. Degradation is further enhanced by the formation of voids and integranular oxidation in the thoria-free regions. These regions apparently provided sites for void formation and oxide growth since the strength and oxidation resistance of Ni-20Cr is much less than Ni-20Cr-2ThO2. This localized oxidation does not appear to reduce the static load bearing capacity of TD-NiCr since long stress rupture lives were observed even with heavily oxidized microstructures. But this oxidation does significantly reduce the ductility and impact resistance of the material. Dispersoid-free bands and voids were also observed for two other dispersion strengthened alloys, TD-NiCrAl and IN-853. Thus, it appears that diffusional creep is charactertistic of dispersion-strengthened alloys and can play a major role in the creep degradation of these materials.
Book Synopsis Diffusional Creep Degradation in the Dispersion-strengthened Alloy TD-NiCr by : John Daniel Whittenberger
Download or read book Diffusional Creep Degradation in the Dispersion-strengthened Alloy TD-NiCr written by John Daniel Whittenberger and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dispersoid-free regions were observed in TD-NiCr (Ni-20Cr-2ThO2) after slow strain rate testing in air from 1145 to 1590 K. Formation of the dispersoid-free regions appears to be the result of diffusional creep. The net effect of this creep is the degradation of TD-NiCr to a duplex microstructure. Degradation is further enhanced by the formation of voids and integranular oxidation in the thoria-free regions. These regions apparently provided sites for void formation and oxide growth since the strength and oxidation resistance of Ni-20Cr is much less than Ni-20Cr-2ThO2. This localized oxidation does not appear to reduce the static load bearing capacity of TD-NiCr since long stress rupture lives were observed even with heavily oxidized microstructures. But this oxidation does significantly reduce the ductility and impact resistance of the material. Dispersoid-free bands and voids were also observed for two other dispersion strengthened alloys, TD-NiCrAl and IN-853. Thus, it appears that diffusional creep is charactertistic of dispersion-strengthened alloys and can play a major role in the creep degradation of these materials.
Book Synopsis Diffusion Creep and Creep Degradation in the Dispersion-strengthened Alloy TD-NiCr by : John D. Whittenberg
Download or read book Diffusion Creep and Creep Degradation in the Dispersion-strengthened Alloy TD-NiCr written by John D. Whittenberg and published by . This book was released on 1972 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Diffusional Creep and Crep Degradation in the Dispersion-strengthened Alloy TD-NiCr/ by John D. Wittenberger by : John D. Wittenberger
Download or read book Diffusional Creep and Crep Degradation in the Dispersion-strengthened Alloy TD-NiCr/ by John D. Wittenberger written by John D. Wittenberger and published by . This book was released on 1972 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1977 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Creep degradation in oxide-dispersion-strengthened alloys by : John Daniel Whittenberger
Download or read book Creep degradation in oxide-dispersion-strengthened alloys written by John Daniel Whittenberger and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog, United States Public Documents by : United States. Superintendent of Documents
Download or read book Monthly Catalog, United States Public Documents written by United States. Superintendent of Documents and published by . This book was released on 1973 with total page 1282 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Book Synopsis Mechanical Properties of Metallic Composites by : Shojiro Ochiai
Download or read book Mechanical Properties of Metallic Composites written by Shojiro Ochiai and published by CRC Press. This book was released on 1993-12-17 with total page 823 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides coverage of dispersion-hardened and fibre-reinforced alloys, addressing principal mechanisms, processing and applications. Mechanical behaviour based on dislocation theory and elastic-plastic mechanics is dealt with and data on advanced composites are provided.
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications, Cumulative Index by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Improved Diffusion Welding Technique for TD-NiCR Sheet by : Kenneth H. Holko
Download or read book An Improved Diffusion Welding Technique for TD-NiCR Sheet written by Kenneth H. Holko and published by . This book was released on 1973 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solid-state and Fusion Resistance Spot Welding of TD-NiCr Sheet by : Thomas Joseph Moore
Download or read book Solid-state and Fusion Resistance Spot Welding of TD-NiCr Sheet written by Thomas Joseph Moore and published by . This book was released on 1973 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: By using specially processed TD-NiCr sheet in both 0.4-mm (0.015-in.) and 1.6-mm (0.062-in.) thicknesses and carefully selected welding procedures, solid state resistance spot welds were produced which, after postheating at 1200 C, were indistinguishable from the parent material. Stress-rupture shear tests of single-spot lap joints in 0.4-mm (0.015-in.) thick sheet showed that these welds were as strong as the parent material. Similar results were obtained in tensile-shear tests at room temperature and 1100 C and in fatigue tests. Conventional fusion spot welds in commercial sheet were unsatisfactory because of poor stress-rupture shear properties resulting from metallurgical damage to the parent material.
Book Synopsis Creep and Tensile Properties of Several Oxide-dispersion-strengthened Nickel-base Alloys at 1365 K by : John Daniel Whittenberger
Download or read book Creep and Tensile Properties of Several Oxide-dispersion-strengthened Nickel-base Alloys at 1365 K written by John Daniel Whittenberger and published by . This book was released on 1977 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1973 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Mechanical and Physical Properties of TD-NiCr (Ni-20Cr-2ThO2) Alloy Sheet by :
Download or read book Characterization of the Mechanical and Physical Properties of TD-NiCr (Ni-20Cr-2ThO2) Alloy Sheet written by and published by . This book was released on 1973 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relation of Structure to Mechanical Properties of Thin Thoria Dispersion Strengthened Nickel-chromium (TD-NiCr) Alloy Sheet by : John Daniel Whittenberger
Download or read book Relation of Structure to Mechanical Properties of Thin Thoria Dispersion Strengthened Nickel-chromium (TD-NiCr) Alloy Sheet written by John Daniel Whittenberger and published by . This book was released on 1975 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Creep and Residual Mechanical Properties of Cast Superalloys and Oxide Dispersion Strengthened Alloys by : J. Daniel Whittenberger
Download or read book Creep and Residual Mechanical Properties of Cast Superalloys and Oxide Dispersion Strengthened Alloys written by J. Daniel Whittenberger and published by . This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
