Microstructures and compressive properties of Ni alloyed Rh-15 at.% Nb two-phase refractory superalloys

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

doi:10.1016/S0167-577X(99)00096-8

Microstructures and compressive properties of Ni alloyed Rh-15 at.% Nb two-phase refractory superalloys

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

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

6 Citations (Scopus)

Abstract

The effects of replacing Rh with Ni in the Rh-15Nb two-phase refractory superalloy were determined by examining the microstructures and compressive properties of Rh_85-xNb₁₅Ni_x alloys. The results indicated that the optimum Ni content to use to replace Rh in the Rh-15 at.% Nb alloy was about 10 at.%. When the Ni content was below the optimum content, Ni addition was beneficial to the compression strength of the two-phase Rh-15 at.% Nb alloys at both room and high temperatures. Meanwhile, Ni additions predominantly change intergranular fracture in the Rh-15 at.% Nb alloy to transgranular in Ni alloyed Rh-15 at.% Nb.

Original language	English
Pages (from-to)	45-51
Number of pages	7
Journal	Materials Letters
Volume	41
Issue number	2
DOIs	https://doi.org/10.1016/S0167-577X(99)00096-8
Publication status	Published - 1999 Oct
Externally published	Yes

ASJC Scopus subject areas

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

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@article{ff81d22272e14347be4092658060bd92,

title = "Microstructures and compressive properties of Ni alloyed Rh-15 at.% Nb two-phase refractory superalloys",

abstract = "The effects of replacing Rh with Ni in the Rh-15Nb two-phase refractory superalloy were determined by examining the microstructures and compressive properties of Rh85-xNb15Nix alloys. The results indicated that the optimum Ni content to use to replace Rh in the Rh-15 at.% Nb alloy was about 10 at.%. When the Ni content was below the optimum content, Ni addition was beneficial to the compression strength of the two-phase Rh-15 at.% Nb alloys at both room and high temperatures. Meanwhile, Ni additions predominantly change intergranular fracture in the Rh-15 at.% Nb alloy to transgranular in Ni alloyed Rh-15 at.% Nb.",

author = "Gu, {Y. F.} and Y. Yamabe-Mitarai and Xihong Yu and H. Harada",

note = "Funding Information: We thank Mr. S. Nishikawa and Mr. T. Maruko of Furuya Metal 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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doi = "10.1016/S0167-577X(99)00096-8",

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pages = "45--51",

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T1 - Microstructures and compressive properties of Ni alloyed Rh-15 at.% Nb two-phase refractory superalloys

AU - Gu, Y. F.

AU - Yamabe-Mitarai, Y.

AU - Yu, Xihong

AU - Harada, H.

N1 - Funding Information: We thank Mr. S. Nishikawa and Mr. T. Maruko of Furuya Metal 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

Y1 - 1999/10

N2 - The effects of replacing Rh with Ni in the Rh-15Nb two-phase refractory superalloy were determined by examining the microstructures and compressive properties of Rh85-xNb15Nix alloys. The results indicated that the optimum Ni content to use to replace Rh in the Rh-15 at.% Nb alloy was about 10 at.%. When the Ni content was below the optimum content, Ni addition was beneficial to the compression strength of the two-phase Rh-15 at.% Nb alloys at both room and high temperatures. Meanwhile, Ni additions predominantly change intergranular fracture in the Rh-15 at.% Nb alloy to transgranular in Ni alloyed Rh-15 at.% Nb.

AB - The effects of replacing Rh with Ni in the Rh-15Nb two-phase refractory superalloy were determined by examining the microstructures and compressive properties of Rh85-xNb15Nix alloys. The results indicated that the optimum Ni content to use to replace Rh in the Rh-15 at.% Nb alloy was about 10 at.%. When the Ni content was below the optimum content, Ni addition was beneficial to the compression strength of the two-phase Rh-15 at.% Nb alloys at both room and high temperatures. Meanwhile, Ni additions predominantly change intergranular fracture in the Rh-15 at.% Nb alloy to transgranular in Ni alloyed Rh-15 at.% Nb.

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DO - 10.1016/S0167-577X(99)00096-8

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VL - 41

SP - 45

EP - 51

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

IS - 2

ER -

Microstructures and compressive properties of Ni alloyed Rh-15 at.% Nb two-phase refractory superalloys

Abstract

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