High temperature strength of Pt-base superalloys with different γ′ volume fractions

M. Wenderoth; R. Völkl; T. Yokokawa; Y. Yamabe-Mitarai; H. Harada

doi:10.1016/j.scriptamat.2005.09.017

High temperature strength of Pt-base superalloys with different γ′ volume fractions

M. Wenderoth, R. Völkl, T. Yokokawa, Y. Yamabe-Mitarai, H. Harada

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

25 Citations (Scopus)

Abstract

Pt-Al-Cr-Ni alloys with various γ′ volume fractions were investigated in terms of microstructure and compression strength at high temperature. In contrast to Ni-base superalloys, strengthening beyond the rule of mixture due to coherent γ/γ′ interfaces decreases with increasing temperature. Constrained and unconstrained lattice misfits were determined by high temperature X-ray diffraction analyses on the isolated γ and γ′ phases and on an alloy with about 50 vol.% γ′.

Original language	English
Pages (from-to)	275-279
Number of pages	5
Journal	Scripta Materialia
Volume	54
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2005.09.017
Publication status	Published - 2006 Jan
Externally published	Yes

Keywords

Compression test
Platinum-group
Precipitation
X-ray diffraction

ASJC Scopus subject areas

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

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10.1016/j.scriptamat.2005.09.017

Cite this

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title = "High temperature strength of Pt-base superalloys with different γ′ volume fractions",

abstract = "Pt-Al-Cr-Ni alloys with various γ′ volume fractions were investigated in terms of microstructure and compression strength at high temperature. In contrast to Ni-base superalloys, strengthening beyond the rule of mixture due to coherent γ/γ′ interfaces decreases with increasing temperature. Constrained and unconstrained lattice misfits were determined by high temperature X-ray diffraction analyses on the isolated γ and γ′ phases and on an alloy with about 50 vol.% γ′.",

keywords = "Compression test, Platinum-group, Precipitation, X-ray diffraction",

author = "M. Wenderoth and R. V{\"o}lkl and T. Yokokawa and Y. Yamabe-Mitarai and H. Harada",

note = "Funding Information: The authors thank the Japan Society for the Promotion of Science (JSPS) and the Deutsche Forschungsgemeinschaft (DFG) for financial support. The assistance of Mr. S. Nakazawa, Mr. K. Nishida and Mr. T. Aoyagi in mechanical testing and EPMA analysis at the National Institute for Materials Science in Tsukuba is thankfully appreciated. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2006",

month = jan,

doi = "10.1016/j.scriptamat.2005.09.017",

language = "English",

volume = "54",

pages = "275--279",

journal = "Scripta Materialia",

issn = "1359-6462",

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TY - JOUR

T1 - High temperature strength of Pt-base superalloys with different γ′ volume fractions

AU - Wenderoth, M.

AU - Völkl, R.

AU - Yokokawa, T.

AU - Yamabe-Mitarai, Y.

AU - Harada, H.

N1 - Funding Information: The authors thank the Japan Society for the Promotion of Science (JSPS) and the Deutsche Forschungsgemeinschaft (DFG) for financial support. The assistance of Mr. S. Nakazawa, Mr. K. Nishida and Mr. T. Aoyagi in mechanical testing and EPMA analysis at the National Institute for Materials Science in Tsukuba is thankfully appreciated. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/1

Y1 - 2006/1

N2 - Pt-Al-Cr-Ni alloys with various γ′ volume fractions were investigated in terms of microstructure and compression strength at high temperature. In contrast to Ni-base superalloys, strengthening beyond the rule of mixture due to coherent γ/γ′ interfaces decreases with increasing temperature. Constrained and unconstrained lattice misfits were determined by high temperature X-ray diffraction analyses on the isolated γ and γ′ phases and on an alloy with about 50 vol.% γ′.

AB - Pt-Al-Cr-Ni alloys with various γ′ volume fractions were investigated in terms of microstructure and compression strength at high temperature. In contrast to Ni-base superalloys, strengthening beyond the rule of mixture due to coherent γ/γ′ interfaces decreases with increasing temperature. Constrained and unconstrained lattice misfits were determined by high temperature X-ray diffraction analyses on the isolated γ and γ′ phases and on an alloy with about 50 vol.% γ′.

KW - Compression test

KW - Platinum-group

KW - Precipitation

KW - X-ray diffraction

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DO - 10.1016/j.scriptamat.2005.09.017

M3 - Article

AN - SCOPUS:27644433144

VL - 54

SP - 275

EP - 279

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 2

ER -

High temperature strength of Pt-base superalloys with different γ′ volume fractions

Abstract

Keywords

ASJC Scopus subject areas

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