Mechanical properties at 2223 K and oxidation behavior of Ir alloys

Yoko Yamabe-Mitarai; Hideyuki Murakami

doi:10.1016/j.intermet.2013.09.014

Mechanical properties at 2223 K and oxidation behavior of Ir alloys

Yoko Yamabe-Mitarai^*, Hideyuki Murakami

^*Corresponding author for this work

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

16 Citations (Scopus)

Abstract

Compressive strengths of twelve Ir-1at%X binary alloys were evaluated at 2223 K to understand the strengthening effects of alloying elements. The alloying elements were selected from group 4 to group 10 in the periodic table. The maximum strength of about 65 MPa was obtained in Ir-Hf and Ir-Zr alloys. The effect of adding multiple alloying elements on strength was also investigated. Isothermal oxidation behavior was investigated at 1373 K for Ir alloys including Nb and/or Hf. The weight of all the tested alloys decreased linearly during the oxidation test, indicating that Ir oxide evaporated during oxidation.

Original language	English
Pages (from-to)	86-92
Number of pages	7
Journal	Intermetallics
Volume	48
DOIs	https://doi.org/10.1016/j.intermet.2013.09.014
Publication status	Published - 2014 May
Externally published	Yes

Keywords

B. Mechanical properties at high temperatures
B. Solid-solution hardening
F. Metallographic techniques
G. Automotive uses

ASJC Scopus subject areas

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

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10.1016/j.intermet.2013.09.014

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title = "Mechanical properties at 2223 K and oxidation behavior of Ir alloys",

abstract = "Compressive strengths of twelve Ir-1at%X binary alloys were evaluated at 2223 K to understand the strengthening effects of alloying elements. The alloying elements were selected from group 4 to group 10 in the periodic table. The maximum strength of about 65 MPa was obtained in Ir-Hf and Ir-Zr alloys. The effect of adding multiple alloying elements on strength was also investigated. Isothermal oxidation behavior was investigated at 1373 K for Ir alloys including Nb and/or Hf. The weight of all the tested alloys decreased linearly during the oxidation test, indicating that Ir oxide evaporated during oxidation.",

keywords = "B. Mechanical properties at high temperatures, B. Solid-solution hardening, F. Metallographic techniques, G. Automotive uses",

author = "Yoko Yamabe-Mitarai and Hideyuki Murakami",

year = "2014",

month = may,

doi = "10.1016/j.intermet.2013.09.014",

language = "English",

volume = "48",

pages = "86--92",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Limited",

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T1 - Mechanical properties at 2223 K and oxidation behavior of Ir alloys

AU - Yamabe-Mitarai, Yoko

AU - Murakami, Hideyuki

PY - 2014/5

Y1 - 2014/5

N2 - Compressive strengths of twelve Ir-1at%X binary alloys were evaluated at 2223 K to understand the strengthening effects of alloying elements. The alloying elements were selected from group 4 to group 10 in the periodic table. The maximum strength of about 65 MPa was obtained in Ir-Hf and Ir-Zr alloys. The effect of adding multiple alloying elements on strength was also investigated. Isothermal oxidation behavior was investigated at 1373 K for Ir alloys including Nb and/or Hf. The weight of all the tested alloys decreased linearly during the oxidation test, indicating that Ir oxide evaporated during oxidation.

AB - Compressive strengths of twelve Ir-1at%X binary alloys were evaluated at 2223 K to understand the strengthening effects of alloying elements. The alloying elements were selected from group 4 to group 10 in the periodic table. The maximum strength of about 65 MPa was obtained in Ir-Hf and Ir-Zr alloys. The effect of adding multiple alloying elements on strength was also investigated. Isothermal oxidation behavior was investigated at 1373 K for Ir alloys including Nb and/or Hf. The weight of all the tested alloys decreased linearly during the oxidation test, indicating that Ir oxide evaporated during oxidation.

KW - B. Mechanical properties at high temperatures

KW - B. Solid-solution hardening

KW - F. Metallographic techniques

KW - G. Automotive uses

UR - http://www.scopus.com/inward/record.url?scp=84897628749&partnerID=8YFLogxK

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U2 - 10.1016/j.intermet.2013.09.014

DO - 10.1016/j.intermet.2013.09.014

M3 - Article

AN - SCOPUS:84897628749

SN - 0966-9795

VL - 48

SP - 86

EP - 92

JO - Intermetallics

JF - Intermetallics

ER -

Mechanical properties at 2223 K and oxidation behavior of Ir alloys

Abstract

Keywords

ASJC Scopus subject areas

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