Phase constituents of Ir-Nb-Pt-Al quaternary alloys

C. Huang; Y. Yamabe-Mitarai; K. Nishida; H. Harada

doi:10.1016/S0966-9795(03)00104-3

Phase constituents of Ir-Nb-Pt-Al quaternary alloys

C. Huang, Y. Yamabe-Mitarai, K. Nishida, H. Harada

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

14 Citations (Scopus)

Abstract

The phase constituents of Ir-Nb-Pt-Al quaternary system were investigated using a combination of several methods. Two L1₂ phases (L1 ₂-Ir₃Nb and L1₂-Pt₃Al) were found to be miscible in this system, and a fully fcc/L1₂ two-phase structure was observed in all the alloys investigated. A partial isothermal phase diagram at 1500 °C was plotted. The lattice misfit between L1 ₂ and fcc phase was found to be small, and a fine two-phase structure could form at a certain heat-treatment temperature. The microstructure of Ir-Nb-Pt-Al quaternary alloys showed promising characteristics for the development of high-temperature materials.

Original language	English
Pages (from-to)	917-926
Number of pages	10
Journal	Intermetallics
Volume	11
Issue number	9
DOIs	https://doi.org/10.1016/S0966-9795(03)00104-3
Publication status	Published - 2003 Sept 1
Externally published	Yes

Keywords

A. Intermetallics, miscellaneous
B. Alloy design
B. Martensitic transformation
B. Phase diagram
B. Phase identification

ASJC Scopus subject areas

Chemistry(all)
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0966-9795(03)00104-3

Cite this

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title = "Phase constituents of Ir-Nb-Pt-Al quaternary alloys",

abstract = "The phase constituents of Ir-Nb-Pt-Al quaternary system were investigated using a combination of several methods. Two L12 phases (L1 2-Ir3Nb and L12-Pt3Al) were found to be miscible in this system, and a fully fcc/L12 two-phase structure was observed in all the alloys investigated. A partial isothermal phase diagram at 1500 °C was plotted. The lattice misfit between L1 2 and fcc phase was found to be small, and a fine two-phase structure could form at a certain heat-treatment temperature. The microstructure of Ir-Nb-Pt-Al quaternary alloys showed promising characteristics for the development of high-temperature materials.",

keywords = "A. Intermetallics, miscellaneous, B. Alloy design, B. Martensitic transformation, B. Phase diagram, B. Phase identification",

author = "C. Huang and Y. Yamabe-Mitarai and K. Nishida and H. Harada",

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T1 - Phase constituents of Ir-Nb-Pt-Al quaternary alloys

AU - Huang, C.

AU - Yamabe-Mitarai, Y.

AU - Nishida, K.

AU - Harada, H.

PY - 2003/9/1

Y1 - 2003/9/1

N2 - The phase constituents of Ir-Nb-Pt-Al quaternary system were investigated using a combination of several methods. Two L12 phases (L1 2-Ir3Nb and L12-Pt3Al) were found to be miscible in this system, and a fully fcc/L12 two-phase structure was observed in all the alloys investigated. A partial isothermal phase diagram at 1500 °C was plotted. The lattice misfit between L1 2 and fcc phase was found to be small, and a fine two-phase structure could form at a certain heat-treatment temperature. The microstructure of Ir-Nb-Pt-Al quaternary alloys showed promising characteristics for the development of high-temperature materials.

AB - The phase constituents of Ir-Nb-Pt-Al quaternary system were investigated using a combination of several methods. Two L12 phases (L1 2-Ir3Nb and L12-Pt3Al) were found to be miscible in this system, and a fully fcc/L12 two-phase structure was observed in all the alloys investigated. A partial isothermal phase diagram at 1500 °C was plotted. The lattice misfit between L1 2 and fcc phase was found to be small, and a fine two-phase structure could form at a certain heat-treatment temperature. The microstructure of Ir-Nb-Pt-Al quaternary alloys showed promising characteristics for the development of high-temperature materials.

KW - A. Intermetallics, miscellaneous

KW - B. Alloy design

KW - B. Martensitic transformation

KW - B. Phase diagram

KW - B. Phase identification

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U2 - 10.1016/S0966-9795(03)00104-3

DO - 10.1016/S0966-9795(03)00104-3

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SN - 0966-9795

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EP - 926

JO - Intermetallics

JF - Intermetallics

IS - 9

ER -

Phase constituents of Ir-Nb-Pt-Al quaternary alloys

Abstract

Keywords

ASJC Scopus subject areas

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