Compression properties of B-doped Ir-15Nb two-phase refractory superalloys

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

doi:10.1016/S1359-6462(99)00261-4

Compression properties of B-doped Ir-15Nb two-phase refractory superalloys

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

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

5 Citations (Scopus)

Abstract

The effects of B content on the microstructures and compression properties of the Ir-15at%Nb two-phase refractory superalloy were studied at both room and high temperatures. The yield strengths of the B-doped Ir-15at%Nb alloys were higher than that of the undoped alloy at both room and high temperatures if the B content was around an optimum value, which was about 200 wppm for the Ir-14at%Nb alloy. The fracture mode changed from intergranular fracture in the Ir-15at%Nb alloy to transgranular cleavage in the B-doped alloys. Doping B in the Ir-15at%Nb alloy had little effect on its compression ductility.

Original language	English
Pages (from-to)	1079-1083
Number of pages	5
Journal	Scripta Materialia
Volume	41
Issue number	10
DOIs	https://doi.org/10.1016/S1359-6462(99)00261-4
Publication status	Published - 1999 Oct 22
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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10.1016/S1359-6462(99)00261-4

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title = "Compression properties of B-doped Ir-15Nb two-phase refractory superalloys",

abstract = "The effects of B content on the microstructures and compression properties of the Ir-15at%Nb two-phase refractory superalloy were studied at both room and high temperatures. The yield strengths of the B-doped Ir-15at%Nb alloys were higher than that of the undoped alloy at both room and high temperatures if the B content was around an optimum value, which was about 200 wppm for the Ir-14at%Nb alloy. The fracture mode changed from intergranular fracture in the Ir-15at%Nb alloy to transgranular cleavage in the B-doped alloys. Doping B in the Ir-15at%Nb alloy had little effect on its compression ductility.",

author = "Gu, {Y. F.} and Y. Yamabe-Mitarai 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.",

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T1 - Compression properties of B-doped Ir-15Nb two-phase refractory superalloys

AU - Gu, Y. F.

AU - Yamabe-Mitarai, 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.

PY - 1999/10/22

Y1 - 1999/10/22

N2 - The effects of B content on the microstructures and compression properties of the Ir-15at%Nb two-phase refractory superalloy were studied at both room and high temperatures. The yield strengths of the B-doped Ir-15at%Nb alloys were higher than that of the undoped alloy at both room and high temperatures if the B content was around an optimum value, which was about 200 wppm for the Ir-14at%Nb alloy. The fracture mode changed from intergranular fracture in the Ir-15at%Nb alloy to transgranular cleavage in the B-doped alloys. Doping B in the Ir-15at%Nb alloy had little effect on its compression ductility.

AB - The effects of B content on the microstructures and compression properties of the Ir-15at%Nb two-phase refractory superalloy were studied at both room and high temperatures. The yield strengths of the B-doped Ir-15at%Nb alloys were higher than that of the undoped alloy at both room and high temperatures if the B content was around an optimum value, which was about 200 wppm for the Ir-14at%Nb alloy. The fracture mode changed from intergranular fracture in the Ir-15at%Nb alloy to transgranular cleavage in the B-doped alloys. Doping B in the Ir-15at%Nb alloy had little effect on its compression ductility.

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JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

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ER -

Compression properties of B-doped Ir-15Nb two-phase refractory superalloys

Abstract

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