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 Strengthening Mechanisms in Nickel base Superalloys written by Le Roy Roger Curwick and published by . This book was released on 1972 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strengthening Mechanisms in Nickel base Superalloys written by Raymond Frank Decker and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Metallurgy of Nickel base Superalloys written by C. H. Lund and published by . This book was released on 1961 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strengthening Mechanisms in the Nickel base casting alloy in 100 written by S. Pfeiffer and published by . This book was released on 1980 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal and Mechanical Treatments for Nickel and Some Nickel base Alloys Effects on Mechanical Properties written by Albert M. Hall and published by . This book was released on 1972 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Columbus Laboratories, Battelle Memorial Institute, originally prepared these reports in 1965 and later revised them, updating the information to include the latest technology through 1968. This report is one of a series pertaining to the fabricating of nickel, nickel-base, and cobalt-base alloys. This report deals with heat treating and working nickel and nickel-base alloys, and with the effects of these operations on the mechanical properties of the materials. The subjects covered are annealing, solution treating, stress relieving, stress equalizing, age hardening, hot working, cold working, combinations of working and heat treating (often referred to as thermomechanical treating), and properties of the materials at various temperatures. The equipment and procedures used in working the materials are discussed, along with the common problems that may be encountered and the precautions and corrective measures that are available."--Foreword.

Download or read book Alloy Design and Characterization of Strengthened Nickel based Superalloys for Additive Manufacturing written by Jinghao Xu and published by Linköping University Electronic Press. This book was released on 2021-01-28 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nickel-based superalloys, an alloy system bases on nickel as the matrix element with the addition of up to 10 more alloying elements including chromium, aluminum, cobalt, tungsten, molybdenum, titanium, and so on. Through the development and improvement of nickel-based superalloys in the past century, they are well proved to show excellent performance at the elevated service temperature. Owing to the combination of extraordinary high-temperature mechanical properties, such as monotonic and cyclic deformation resistance, fatigue crack propagation resistance; and high-temperature chemical properties, such as corrosion and oxidation resistance, phase stability, nickel-based superalloys are widely used in the critical hot-section components in aerospace and energy generation industries. The success of nickel-based superalloy systems attributes to both the well-tailored microstructures with the assistance of carefully doped alloying elements, and the intently developed manufacturing processes. The microstructure of the modern nickel-based superalloys consists of a two-phase configuration: the intermetallic precipitates (Ni,Co)3(Al,Ti,Ta) known as γ′ phase dispersed into the austenite γ matrix, which is firstly introduced in the 1940s. The recently developed additive manufacturing (AM) techniques, acting as the disruptive manufacturing process, offers a new avenue for producing the nickel-based superalloy components with complicated geometries. However, γ′ strengthened nickel-based superalloys always suffer from the micro-cracking during the AM process, which is barely eliminated by the process optimization. On this basis, the new compositions of γ′ strengthened nickel-based superalloy adapted to the AM process are of great interest and significance. This study sought to design novel γ′ strengthened nickel-based superalloys readily for AM process with limited cracking susceptibility, based on the understanding of the cracking mechanisms. A two-parameter model is developed to predict the additive manufacturability for any given composition of a nickel-based superalloy. One materials index is derived from the comparison of the deformation-resistant capacity between dendritic and interdendritic regions, while another index is derived from the difference of heat resistant capacity of these two spaces. By plotting the additive manufacturability diagram, the superalloys family can be categorized into the easy-to-weld, fairly-weldable, and non-weldable regime with the good agreement of the existed knowledge. To design a novel superalloy, a Cr-Co-Mo-W-Al-Ti-Ta-Nb-Fe-Ni alloy family is proposed containing 921,600 composition recipes in total. Through the examination of additive manufacturability, undesired phase formation propensity, and the precipitation fraction, one composition of superalloy, MAD542, out of the 921,600 candidates is selected. Validation of additive manufacturability of MAD542 is carried out by laser powder bed fusion (LPBF). By optimizing the LPBF process parameters, the crack-free MAD542 part is achieved. In addition, the MAD542 superalloy shows great resistance to the post-processing treatment-induced cracking. During the post-processing treatment, extensive annealing twins are promoted to achieve the recrystallization microstructure, ensuring the rapid reduction of stored energy. After ageing treatment, up to 60-65% volume fraction of γ′ precipitates are developed, indicating the huge potential of γ′ formation. Examined by the high-temperature slow strain rate tensile and constant loading creep testing, the MAD542 superalloy shows superior strength than the LPBF processed and hot isostatic pressed plus heat-treated IN738LC superalloy. While the low ductility of MAD542 is existed, which is expected to be improved by modifying the post-processing treatment scenarios and by the adjusting building direction in the following stages of the Ph.D. research. MAD542 superalloy so far shows both good additive manufacturability and mechanical potentials. Additionally, the results in this study will contribute to a novel paradigm for alloy design and encourage more γ′-strengthened nickel-based superalloys tailored for AM processes in the future.

Download or read book The Superalloys written by Roger C. Reed and published by Cambridge University Press. This book was released on 2008-07-31 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superalloys are unique high-temperature materials used in gas turbine engines, which display excellent resistance to mechanical and chemical degradation. This book introduces the metallurgical principles which have guided their development. Suitable for graduate students and researchers, it includes exercises and additional resources at www.cambridge.org/9780521859042.

Download or read book Nickel Alloys written by Ulrich Heubner and published by CRC Press. This book was released on 2000-09-01 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book evaluates the latest developments in nickel alloys and high-alloy special stainless steels by material number, price, wear rate in corrosive media, mechanical and metallurgical characteristics, weldability, and resistance to pitting and crevice corrosion. Nickel Alloys is at the forefront in the search for the most economic solutions to chemical equipment construction, power station engineering and high-temperature technology.

Download or read book Investigation of the Strengthening Mechanisms of Dispersion strengthened Alloys written by Richard J. Murphy and published by . This book was released on 1964 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an effort to produce dispersion-strengthened alloys with more versatile strength properties than those reported for oxide dispersion strengthened systems, the systems Ni-TiC and Ni-TiB2 were studied. Diffusion couples of dilute alloys of Ni-C and Ni-Ti as well as of Ni-B and Ni-Ti were studied to determine the conditions necessary for the formation of a fine dispersion of TiC and TiB2 in nickel. TiB2 was found to be unsuitable for this type of application. Nickel-base alloys with a dispersion of TiC were prepared by several powder metallurgical techniques as well as by internal carburization of Ni-Ti chips. The mechanical properties of these alloys were studied at room temperature and 815C and a comparison made with the properties of conventional alloys reported for these temperatures. Transmission electron microscopy was used to study the elastic strain fields associated with dispersoid particles in the Ni-Al2O3 and Cu-Al2O3 systems, prepared by internal oxidation. (Author).

Download or read book The Emittance of Coated Materials Suitable for Elevated temperature Use written by W. D. Wood and published by . This book was released on 1961 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents (Data taken from literature from 1940 through 1960): Boride coatings Carbide coatings Enamels and paints Oxide coatings Silicide coatings Miscellaneous coatings.

Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 1286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Statistical Analysis of Tensile Properties of Heat treated Mo 0 5Ti Sheet written by H. R. Ogden 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 Review of Recent Developments on Oxidation resistant Coatings for Refractory Metals written by William D. Klopp and published by . This book was released on 1961 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book High Temperature Alloys for Gas Turbines and Other Applications 1986 written by W. Betz and published by Springer Science & Business Media. This book was released on 1986 with total page 888 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ASM Specialty Handbook written by Joseph R. Davis and published by ASM International. This book was released on 1997-01-01 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials covered include carbon, alloy and stainless steels; alloy cast irons; high-alloy cast steels; superalloys; titanium and titanium alloys; refractory metals and alloys; nickel-chromium and nickel-thoria alloys; structural intermetallics; structural ceramics, cermets, and cemented carbides; and carbon-composites.