Microstructure and deformation behavior of Ir-Nb two-phase refractory superalloys for various Nb content

Yuefeng Gu; Y. Yamabe-Mitarai; Y. Ro; H. Harada

doi:10.1016/S1359-6462(99)00065-2

Microstructure and deformation behavior of Ir-Nb two-phase refractory superalloys for various Nb content

Yuefeng Gu, Y. Yamabe-Mitarai, Y. Ro, H. Harada

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

29 Citations (Scopus)

Abstract

The effects of Nb content on the microstructures and deformation behavior of Ir-Nb two-phase refractory superalloys were studied. When the Nb content of the alloy was below 17at%, the yield strength increased with increasing Nb. When the Nb content exceeded 17at%, the strength decreased with increasing Nb content. The intergranular brittleness of Ir single-phase alloys was governed by controlling the microstructures around grain boundaries in Ir-Nb two-phase alloys.

Original language	English
Pages (from-to)	1313-1319
Number of pages	7
Journal	Scripta Materialia
Volume	40
Issue number	11
DOIs	https://doi.org/10.1016/S1359-6462(99)00065-2
Publication status	Published - 1999 May 7
Externally published	Yes

ASJC Scopus subject areas

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

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title = "Microstructure and deformation behavior of Ir-Nb two-phase refractory superalloys for various Nb content",

abstract = "The effects of Nb content on the microstructures and deformation behavior of Ir-Nb two-phase refractory superalloys were studied. When the Nb content of the alloy was below 17at%, the yield strength increased with increasing Nb. When the Nb content exceeded 17at%, the strength decreased with increasing Nb content. The intergranular brittleness of Ir single-phase alloys was governed by controlling the microstructures around grain boundaries in Ir-Nb two-phase alloys.",

author = "Yuefeng Gu and Y. Yamabe-Mitarai and Y. Ro and H. Harada",

note = "Funding Information: We thank Mr. S. Nishikawa and Mr. T. Maruko of Furuya Metal Co. Ltd. for preparing the alloys. This research was done under the Japanese Science and Technology Agency (STA) Fellowship program. Y. F. Gu expresses his gratitude for the award of an STA post-doctoral Fellowship, tenable at the National Research Institute for Metals, Tsukuba, Japan. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

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AU - Gu, Yuefeng

AU - Yamabe-Mitarai, Y.

AU - Ro, Y.

AU - Harada, H.

N1 - Funding Information: We thank Mr. S. Nishikawa and Mr. T. Maruko of Furuya Metal Co. Ltd. for preparing the alloys. This research was done under the Japanese Science and Technology Agency (STA) Fellowship program. Y. F. Gu expresses his gratitude for the award of an STA post-doctoral Fellowship, tenable at the National Research Institute for Metals, Tsukuba, Japan. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 1999/5/7

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N2 - The effects of Nb content on the microstructures and deformation behavior of Ir-Nb two-phase refractory superalloys were studied. When the Nb content of the alloy was below 17at%, the yield strength increased with increasing Nb. When the Nb content exceeded 17at%, the strength decreased with increasing Nb content. The intergranular brittleness of Ir single-phase alloys was governed by controlling the microstructures around grain boundaries in Ir-Nb two-phase alloys.

AB - The effects of Nb content on the microstructures and deformation behavior of Ir-Nb two-phase refractory superalloys were studied. When the Nb content of the alloy was below 17at%, the yield strength increased with increasing Nb. When the Nb content exceeded 17at%, the strength decreased with increasing Nb content. The intergranular brittleness of Ir single-phase alloys was governed by controlling the microstructures around grain boundaries in Ir-Nb two-phase alloys.

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