@inproceedings{770f70bd960a42d7a8948b61e0a0c9dd,
title = "Tensile, creep and microstructural behavior of welded cast Haynes 282 alloy for A-USC steam turbine casing applications",
abstract = "Haynes 282 alloy is a relatively new Ni-based superalloy that is being considered for advanced ultrasupercritical (A-USC) steam turbine casings for steam temperatures up to 760°C. Weld properties are important for the turbine casing application, so block ingots of Haynes 282 alloy were cast for properties studies. Good, sound welds were produced using Haynes 282 weld-wire and a hot gas-tungsten-arc welding method, and tensile and creep-rupture properties were measured on cross-weld specimens. In the fully heat-treated condition (solution annealed + aged), the tensile properties of the welded specimens compare well with as-cast material. In the fully heat-treated condition the creep-rupture life and ductility at 750°C/250MPa and 800°C/200MPa of the cross-weld specimens are similar to the as-cast base metal, and repeat creep tests show even longer rupture life for the welds. However, without heat-treatment or with only the precipitate age-hardening heat-treatment, the welds have only about half the rupture life and much lower creep ductility than the as-cast base metal. These good properties of weldments are positive results for advancing the use of cast Haynes 282 alloy for the A-USC steam turbine casing application.",
keywords = "Cast superalloy, Creep-rupture properties, Heat-treatment effects, Microstructural analysis, Pandat computational thermodynamics, Tensile properties, Welded superalloy",
author = "Maziasz, {P. J.} and J. Moser and K. Unocic and Y. Yang and D. Purdy and Jablonski, {P. D.}",
note = "Publisher Copyright: Copyright {\textcopyright} 2016 Electric Power Research Institute, Inc.; 8th International Conference on Advances in Materials Technology for Fossil Power Plants ; Conference date: 11-10-2016 Through 14-10-2016",
year = "2016",
language = "English",
series = "Advances in Materials Technology for Fossil Power Plants - Proceedings from the 8th International Conference",
publisher = "ASM International",
pages = "702--713",
editor = "John Shingledecker and J. Siefert and Jonathan Parker",
booktitle = "Advances in Materials Technology for Fossil Power Plants - Proceedings from the 8th International Conference",
}