Download or read book RELATIONS BETWEEN MICROSTRUCTURE AND GREEP RUPTURE PROPERTIES OF NICKEL BASE ALLOYS AS REVEALED BY OVERTEMPERATURE EXPOSURES written by JOHN P. ROWE J.W. FREEMAR and published by . This book was released on 1961 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relations Between Microstructure and Creep rupture Properties of Nickel base Alloys as Revealed by Overtemperature Exposures written by John P. Rowe and published by . This book was released on 1962 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relations Between Microstructure and Creep rupture Properties of Nickel base Alloys as Revealed by Overtemperature Exposures written by John P. Rowe and published by . This book was released on 1962 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book RELATIONS BETWEEN MICROSTRUCTURE AND CREEP RUPTURE PROPERTIES OF NICKEL BASE ALLOYS AS REVEALED BY OVERTEMPERATURE EXPOSURES written by John Paul Rowe and published by . This book was released on 1960 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relations Between Microstructure and Creep rupture Properties of Nickel base Alloys as Revelead by Overtemperature Exposures written by John P. Rowe and published by . This book was released on 1962 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts written by and published by . This book was released on 1962-04 with total page 1596 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstracts of dissertations and monographs in microform.

Download or read book Guide to Annual Subject Index for Technical Publications Announcements Apr Dec 1962 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1970 with total page 1090 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Catalogs written by Library of Congress and published by . This book was released on 1964 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Subject Catalog written by Library of Congress and published by . This book was released on 1960 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Library of Congress Catalog written by Library of Congress and published by . This book was released on 1960 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: A cumulative list of works represented by Library of Congress printed cards.

Download or read book Influence of Heat Treatment on Microstructure and High temperature Properties of a Nickel base Precipitation hardening Alloy written by R. F. Decker and published by . This book was released on 1958 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies have been made of the influence of various heat treatments on the rupture properties and microstructure of a 55Ni-20Cr-15Co-4Mo-3Ti-3Al alloy to provide more fundamental information on the relationships between structure and high-temperature properties in alloys of this type. The effects of variations in solution treatment, cooling rate after solution treatment, and aging treatment on the stress-rupture properties of the alloy at 1,600 degrees F and 25,000 psi have been measured and related to variations in the size and distribution of precipitates within the alloy and to residual rolling effects.

Download or read book Strengthening Mechanisms in Nickel base High temperature Alloys written by C. H. Lund and published by . This book was released on 1961 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sensitivity of the Creep rupture Properties of Nickel base Superalloy Sheet to Sharp Edge notches in the Temperature Range of 1000 1400 F written by David J. Wilson and published by . This book was released on 1969 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Microstructural Parameters on Creep of Nickel Base Superalloy Single Crystals written by National Aeronaut Administration (Nasa) and published by . This book was released on 2020-08-05 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microstructure-sensitive creep models have been developed for Ni-base superalloy single crystals. Creep rupture testing was conducted on fourteen single crystal alloys at two applied stress levels at each of two temperatures, 982 and 1093 C. The variation in creep lives among the different alloys could be explained with regression models containing relatively few microstructural parameters. At 982 C, gamma-gamma prime lattice mismatch, gamma prime volume fraction, and initial gamma prime size were statistically significant in explaining the creep rupture lives. At 1093 C, only lattice mismatch and gamma prime volume fraction were significant. These models could explain from 84 to 94 percent of the variation in creep lives, depending on test condition. Longer creep lives were associated with alloys having more negative lattice mismatch, lower gamma prime volume fractions, and finer gamma prime sizes. The gamma-gamma prime lattice mismatch exhibited the strongest influence of all the microstructural parameters at both temperatures. Although a majority of the alloys in this study were stable with respect to topologically close packed (TCP) phases, it appeared that up to approximately 2 vol% TCP phase did not affect the 1093 C creep lives under applied stresses that produced lives of approximately 200 to 300 h. In contrast, TCP phase contents of approximately 2 vol% were detrimental at lower applied stresses where creep lives were longer. A regression model was also developed for the as-heat treated initial gamma prime size; this model showed that gamma prime solvus temperature, gamma-gamma prime lattice mismatch, and bulk Re content were all statistically significant. MacKay, Rebecca A. and Gabb, Timothy P. and Nathal, Michael V. Glenn Research Center NASA/TM-2013-217868, E-18666 WBS 473452.02.03.05.04.01.01 NICKEL ALLOYS; MICROSTRUCTURE; SINGLE CRYSTALS; CREEP PROPERTIES; HEAT RESISTANT ALLOYS; CREEP TESTS; REGRESSION ANALYSIS; CRYSTAL LATTICES; CLOSE PACKED LATTICES; TURBINE BLADES; MATHEMATICAL MODELS; HIGH TEMPERATURE; CONCENTRATION (COMPOSITION); TEMPERATURE DEPENDENCE

Download or read book Sensitivity of the Creep Rupture Properties of Nickel Base Superalloy Sheet to Sharp Edge Notches in the Temperature Range of 1000 Deg 1400 Deg F written by and published by . This book was released on 1969 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Investigations are now in progress to evaluate the severe time- dependent, edge-notch sensitivity known to occur in thin sheet nickel-base superalloys exposed under stress at 1000 and 1200F. Studies of Rend 41, Waspaloy and Inconel 718, over a wide range of heat-treated conditions, has served to define the scope of this problem in 0. 026-inch thick sheet. In addition, exploratory data have been obtained on the influence of notch acuity and sheet thickness on the notch sensitivity. Both smooth and edge-notched specimens fractured by the initiation and growth of intergranular cracks, followed by abrupt transgranular fracture due to the increase in stress caused by creep cracking. Analysis of these processes showed that the degree of notch sensitivity was strongly dependent upon the effect of the notches on the time required for the initiation of the creep crack and the early stages of its growth. There were some differences among alloys and within an alloy with heat treatment and test temperature. The notch sensitivity was not exhibited for the testing time periods considered when sheet thickness was increased from 0.026- to 0.050-inch. This, together with other considerations, suggests that the stress and strain state is a major factor. Until this is understood, however, it is not possible to correlate notch sensitive behavior with precise microstructural features or mechanical properties.