@inproceedings{da727161702e4458825dec6258c13dd0,
title = "Creep of N1-Al and Ni-Cr-Al Superalloy Foams",
abstract = "The steady-state creep rate of Ni-base metallic foams, with superalloy composition (in wt. pet) Ni7.{\~8}9.1A1 (relative density, ρ* = 2.5-2.6) and Ni-13.{\~5}16.6Cr-5.{\~1}8.9Al (ρ* = 2.{\~8}3.0), was measured under a range of temperatures (68{\~0}825°C) and applied stresses (0.{\~1}0.3 MPa), and compared with that of NiAl intermetallic foams (ρ = 5.3). The stress exponent and activation energy are within the expected range for bulk superalloys. At 825°C, Ni-Cr-Al foams display creep rates lower by ca. a factor 10 as compared to Ni-Al foams, and higher by ca. a factor 10 as compared to the NiAl intermetallic foams. These differences are discussed in terms of foam density and strut material creep resistance.",
keywords = "Creep, Metallic foams, Nickel, Pack Cementation, Superalloys",
author = "Heeman Choe and Dunand, {David C}",
year = "2003",
month = dec,
day = "1",
language = "English (US)",
isbn = "0873395573",
series = "Materials Science and Technology 2003 Meeting",
pages = "35--41",
editor = "A.B. Pandey and K.L. Kendig and J.J. Lewandowski and S.S. Shah",
booktitle = "Affordable Metal Matrix Composites for High Performance Applications II",
note = "Materials Science and Technology 2003 Meeting ; Conference date: 09-11-2003 Through 12-11-2003",
}