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

被引：5

作者：

Gu, YF ^{[1
]}

Yamabe-Mitarai, Y ^{[1
]}

Yu, XH ^{[1
]}

Harada, H ^{[1
]}

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 3050047, Japan

来源：

MATERIALS LETTERS | 1999年 / 41卷 / 02期

关键词：

rhodium-niobium-nickel alloys; microstructure; compression strength;

D O I：

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

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.% Nh 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. (C) 1999 Elsevier Science B.V. AU rights reserved.

引用

页码：45 / 51

页数：7

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