Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781719502153
Total Pages : 70 pages
Book Rating : 4.5/5 (21 download)
Book Synopsis The Mechanical Properties of Candidate Superalloys for a Hybrid Turbine Disk by : National Aeronautics and Space Administration (NASA)
Download or read book The Mechanical Properties of Candidate Superalloys for a Hybrid Turbine Disk written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-23 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanical properties of several cast blade superalloys and one powder metallurgy disk superalloy were assessed for potential use in a dual alloy hybrid disk concept of joined dissimilar bore and web materials. Grain size was varied for each superalloy class. Tensile, creep, fatigue, and notch fatigue tests were performed at 704 to 815 degC. Typical microstructures and failure modes were determined. Preferred materials were then selected for future study as the bore and rim alloys in this hybrid disk concept. Powder metallurgy superalloy LSHR at 15 micron grain size and single crystal superalloy LDS-1101+Hf were selected for further study, and future work is recommended to develop the hybrid disk concept. Gabb, Timothy P. and MacKay, Rebecca A. and Draper, Susan L. and Sudbrack, Chantal K. and Nathal, Michael V. Glenn Research Center HEAT RESISTANT ALLOYS; FATIGUE TESTS; POWDER METALLURGY; CAST ALLOYS; MECHANICAL PROPERTIES; MICROSTRUCTURE; TURBINES; GRAIN SIZE; CAVITIES