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

4 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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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.",

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AU - Gu, Y. F.

AU - Yamabe-Mitarai, Y.

AU - Harada, H.

PY - 1999/10/22

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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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