Role of Zn in enhancing the creep resistance of Mg-RE alloys

Deep Choudhuri; David Jaeger; Mark A. Gibson; Rajarshi Banerjee

doi:10.1016/j.scriptamat.2014.04.026

Role of Zn in enhancing the creep resistance of Mg-RE alloys

Deep Choudhuri, David Jaeger, Mark A. Gibson, Rajarshi Banerjee

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

26 Citations (Scopus)

Abstract

Addition of Zn to Mg-Nd-La alloys resulted in an order of magnitude drop in the minimum creep rate. This remarkable improvement in creep resistance resulted from a high number density of highly refined γ″ precipitates within the α-Mg matrix coupled with preferential segregation of Zn atoms to defect/dislocation structures. These two microstructural features are expected to enhance the creep resistance by retarding dislocation motion within the α-Mg matrix.

Original language	English
Pages (from-to)	32-35
Number of pages	4
Journal	Scripta Materialia
Volume	86
DOIs	https://doi.org/10.1016/j.scriptamat.2014.04.026
Publication status	Published - 1 Sept 2014
Externally published	Yes

Keywords

Atom probe
Creep
Magnesium alloys
Precipitation
TEM

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10.1016/j.scriptamat.2014.04.026

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AU - Banerjee, Rajarshi

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AB - Addition of Zn to Mg-Nd-La alloys resulted in an order of magnitude drop in the minimum creep rate. This remarkable improvement in creep resistance resulted from a high number density of highly refined γ″ precipitates within the α-Mg matrix coupled with preferential segregation of Zn atoms to defect/dislocation structures. These two microstructural features are expected to enhance the creep resistance by retarding dislocation motion within the α-Mg matrix.

KW - Atom probe

KW - Creep

KW - Magnesium alloys

KW - Precipitation

KW - TEM

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JO - Scripta Materialia

JF - Scripta Materialia

ER -

Role of Zn in enhancing the creep resistance of Mg-RE alloys

Abstract

Keywords

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