Download or read book THE EFFECTS OF TEMPERED NONMARTENSITIC PRODUCTS ON THE NOTCH TOUGHNESS AND MECHANICAL PROPERTIES OF AN HY 80 STEEL written by and published by . This book was released on 1965 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report discusses the effects of nonmartensitic products and mechanical properties on the nil-ductilitytransition (NDT) temperature and transverse Charpy V-notch absorption level, for a selected HY-80 steel. Proeutectoid ferrite was found to have the most detrimental effect on the transverse Charpy maximum energy level. Large prior austenitic grain size, irrespective of microstructure, increases the NDT temperature by approximately 100 F. It is recommended that the present HY-80 specification be amended to require two chemistry ranges, one for thin and one for thick plates.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1965 with total page 1188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mond Nickel Bulletin written by and published by . This book was released on 1967 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes sections "Abstracts and references" and "Pattents".
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965-03 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Tempering Above the Lower Critical Temperature a Sub C1 on the Properties of an Hy 80 Steel written by Abner R. Willner and published by . This book was released on 1966 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of tempering above the critical transformation temperature on the microstructure, notch-toughness and mechanical properties of HY-80 steel was investigated. The formation of alpha ferrite and prime martensite after tempering above the lower critical temperature and quenching will result in mechanical properties that fall below the requirements of the HY- 80 specification. Retempering to achieve minimum yield strengths may result in nonuniform yield strength distribution. The possibility of underbead cracking due to alloy segregation is also discussed.
Download or read book Materials Research and Standards written by and published by . This book was released on 1965 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Austenitizing and Tempering on the Mechanical Properties of Fully Quenched Hy 80 Steels written by A. R. WILLNER and published by . This book was released on 1961 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of austenitizing, tempering temperatures times on fully quenched low- and high-chemistry HY-80 steels were investigated. Correlation procedures were established for relating notch-brittleness properties to tensile strength for a given Charpy V-notch fibrous fracture appearance. The results indicate that Charpy V-notch transition temperatures increase with increasing austenitizing and decreasing tempering temperatures. For fully quenched HY-80 steels, the optimum Charpy V-notch impact fibrous transition temperatures are attained for the 100,000psi-yield-strength level.
Download or read book Report David W Taylor Model Basin written by David W. Taylor Model Basin and published by . This book was released on with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1965 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1965-04-05 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Tempering and Stress relieving Treatments on the Mechanical Properties of Hy 80 and 5ni cr mo v Production Steels written by S. J. Manganello and published by . This book was released on 1964 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although most plates for submarine hulls are not normally stress-relieved, highly deformed hull plates are stress-relieved and plates for other applications may require stress relieving. Therefore, a study was initiated to determine the effect of stress relieving for times up to 125 hours in the temperature range 950 to 1050 F on the properties of quenched and tempered plates of the 5Ni-Cr-Mo-V experimental HY-130/150 steel. In addition, the effect of tempering for similar times and temperatures on the properties of quenched plates was determined. For comparison, similar studies were conducted on an open-hearth and on an electric-furnace HY-80 steel. The tempering study showed that the 5Ni-Cr-Mo-V steel was more resistant to softening during long-time tempering than the HY-80 steels and that its Charpy V-notch energy absorption in the yieldstrength range 130 to 150 ksi was higher than those of the HY-80 steels. (Author).
Download or read book Government Reports Announcements written by and published by . This book was released on 1965 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1965 with total page 1356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Microstructure Composition and Strength on the Nil Ductility Transition NDT Temperature of HY 80 Steel written by Marcel L. Salive and published by . This book was released on 1972 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steel from 22 heats of low-carbon Ni-Cr-Mo steel, HY-80 (ASTM a543-65, and MIL-S-16216G (Ships)) was heat treated to study the effects on the drop weight nil ductility transition (NDT) temperature of (1) commercial variation in composition and inclusion content, (2) variation in microstructure such as prior austenitic grain size and the relative amount of isothermally produced ferrite or bainite in a tempered martensitic matrix, and (3) the observed variation in strength obtained after a one-hour 1150 deg F temper followed by water quench to prevent embrittlement while cooling from the tempering temperature.
Download or read book Effect of Tempering on the Strength Hardness and Notch Toughness of Hy 130 150 5ni cr mo v Steel written by W. H. Asche and published by . This book was released on 1966 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of tempering in the range of 900 to 1150 F on the tensile propeties, hardness, and Charpy V-notch toughness of HY-130/150, 5Ni-Cr-Mo-V steel was investigated. The investigation confirmed high tempering resistance claimed for the steel. The strength and hardness properties were found to be similar over a tempering range of 900 to 1050 F. The notch toughness, however, increased with increasing tempering temperature. (Author).
Download or read book The Effects of Austenitzing and Tempering on the Mechanical Properties of Fully Quenched Hy 80 Steels written by A. R. Willner and published by . This book was released on 1961 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
