Creep behavior of Ni-added Ir85Nb15 two-phase refractory superalloys at 1800 °C

Y. F. Gu; Y. Yamabe-Mitarai; S. Nakazawa; H. Harada

doi:10.1016/S1359-6462(01)01210-6

Creep behavior of Ni-added Ir₈₅Nb₁₅ two-phase refractory superalloys at 1800 °C

Y. F. Gu, Y. Yamabe-Mitarai, S. Nakazawa, H. Harada

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The compression creep properties for the nickel (Ni) added iridium-based two-phase refractory superalloys were investigated at 1800°centigrade under 137 MPa. Samples were examined using scanning electron microscope and transmission electron microscope. Creep strain was determined by a CCD camera and by measuring the load-strain displacement. Results indicated that creep resistance improved due to addition of 1 at.% Ni due to lattice misfit decrease and change in crack behavior.

Original language	English
Pages (from-to)	137-142
Number of pages	6
Journal	Scripta Materialia
Volume	46
Issue number	2
DOIs	https://doi.org/10.1016/S1359-6462(01)01210-6
Publication status	Published - 2002 Jan
Externally published	Yes

Keywords

Creep
IrNb
Refractory superalloy
Ultra-high temperature

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/S1359-6462(01)01210-6

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AU - Harada, H.

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