Elastic moduli and load partitioning in a single-crystal nickel superalloy

D. Dye; J. Coakley; V. A. Vorontsov; H. J. Stone; R. B. Rogge

doi:10.1016/j.scriptamat.2009.03.008

Elastic moduli and load partitioning in a single-crystal nickel superalloy

D. Dye^*, J. Coakley, V. A. Vorontsov, H. J. Stone, R. B. Rogge

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

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

43 Citations (Scopus)

Abstract

The constrained moduli of the γ and γ′ phases of the Ni superalloy CMSX-4 have been determined using in situ neutron diffraction. The elastic moduli of the isolated phases fitted using a model are found to be E_[100] = 103 GPa in the γ and 134 GPa in the γ′ at room temperature, while at 900 °C they are 96 and 90 GPa. Therefore load partitions markedly to the γ′ phase at room temperature but there is little load partitioning at elevated temperatures.

Original language	English
Pages (from-to)	109-112
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	2
DOIs	https://doi.org/10.1016/j.scriptamat.2009.03.008
Publication status	Published - 1 Jul 2009

Keywords

elastic behaviour
neutron diffraction
nickel alloys
single-crystal nickel superalloy

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10.1016/j.scriptamat.2009.03.008

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title = "Elastic moduli and load partitioning in a single-crystal nickel superalloy",

abstract = "The constrained moduli of the γ and γ′ phases of the Ni superalloy CMSX-4 have been determined using in situ neutron diffraction. The elastic moduli of the isolated phases fitted using a model are found to be E[100] = 103 GPa in the γ and 134 GPa in the γ′ at room temperature, while at 900 °C they are 96 and 90 GPa. Therefore load partitions markedly to the γ′ phase at room temperature but there is little load partitioning at elevated temperatures.",

keywords = "elastic behaviour, neutron diffraction, nickel alloys, single-crystal nickel superalloy",

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AU - Dye, D.

AU - Coakley, J.

AU - Vorontsov, V. A.

AU - Stone, H. J.

AU - Rogge, R. B.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - The constrained moduli of the γ and γ′ phases of the Ni superalloy CMSX-4 have been determined using in situ neutron diffraction. The elastic moduli of the isolated phases fitted using a model are found to be E[100] = 103 GPa in the γ and 134 GPa in the γ′ at room temperature, while at 900 °C they are 96 and 90 GPa. Therefore load partitions markedly to the γ′ phase at room temperature but there is little load partitioning at elevated temperatures.

AB - The constrained moduli of the γ and γ′ phases of the Ni superalloy CMSX-4 have been determined using in situ neutron diffraction. The elastic moduli of the isolated phases fitted using a model are found to be E[100] = 103 GPa in the γ and 134 GPa in the γ′ at room temperature, while at 900 °C they are 96 and 90 GPa. Therefore load partitions markedly to the γ′ phase at room temperature but there is little load partitioning at elevated temperatures.

KW - elastic behaviour

KW - neutron diffraction

KW - nickel alloys

KW - single-crystal nickel superalloy

UR - http://www.scopus.com/inward/record.url?scp=65449180710&partnerID=8YFLogxK

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DO - 10.1016/j.scriptamat.2009.03.008

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VL - 61

SP - 109

EP - 112

JO - Scripta Materialia

JF - Scripta Materialia

IS - 2

ER -

Elastic moduli and load partitioning in a single-crystal nickel superalloy

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Keywords

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