Effect of extrusion on the thermal expansion behavior of Al18B4O33 whisker-Mg composites

He jun Li; Zheng jia Li; Le hua Qi; Haibo Oy

doi:10.1016/j.scriptamat.2009.05.010

Effect of extrusion on the thermal expansion behavior of Al₁₈B₄O₃₃ whisker-Mg composites

He jun Li, Zheng jia Li, Le hua Qi, Haibo Oy

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

26 Scopus citations

Abstract

The thermal expansion behaviors of AZ91D alloy and Al₁₈B₄O₃₃ whisker (w)-AZ91D fabricated by different techniques were investigated at 30-300 °C. The results indicate that these behaviors were greatly influenced by extrusion forming, which reduced the coefficients of thermal expansion (CTE) of AZ91D and Al₁₈B₄O₃₃w-AZ91D and resulted in negative strain. The residual stresses could be eliminated by thermal cycling. The CTE of the whisker-reinforced composites could be predicted accurately by micromechanical modelling.

Original language	English
Pages (from-to)	512-515
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	5
DOIs	https://doi.org/10.1016/j.scriptamat.2009.05.010
State	Published - Sep 2009

Keywords

Extrusion
Modelling
Residual stresses
Whisker-reinforced composites

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10.1016/j.scriptamat.2009.05.010

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title = "Effect of extrusion on the thermal expansion behavior of Al18B4O33 whisker-Mg composites",

abstract = "The thermal expansion behaviors of AZ91D alloy and Al18B4O33 whisker (w)-AZ91D fabricated by different techniques were investigated at 30-300 °C. The results indicate that these behaviors were greatly influenced by extrusion forming, which reduced the coefficients of thermal expansion (CTE) of AZ91D and Al18B4O33w-AZ91D and resulted in negative strain. The residual stresses could be eliminated by thermal cycling. The CTE of the whisker-reinforced composites could be predicted accurately by micromechanical modelling.",

keywords = "Extrusion, Modelling, Residual stresses, Whisker-reinforced composites",

author = "Li, {He jun} and Li, {Zheng jia} and Qi, {Le hua} and Haibo Oy",

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AU - Li, He jun

AU - Li, Zheng jia

AU - Qi, Le hua

AU - Oy, Haibo

PY - 2009/9

Y1 - 2009/9

N2 - The thermal expansion behaviors of AZ91D alloy and Al18B4O33 whisker (w)-AZ91D fabricated by different techniques were investigated at 30-300 °C. The results indicate that these behaviors were greatly influenced by extrusion forming, which reduced the coefficients of thermal expansion (CTE) of AZ91D and Al18B4O33w-AZ91D and resulted in negative strain. The residual stresses could be eliminated by thermal cycling. The CTE of the whisker-reinforced composites could be predicted accurately by micromechanical modelling.

AB - The thermal expansion behaviors of AZ91D alloy and Al18B4O33 whisker (w)-AZ91D fabricated by different techniques were investigated at 30-300 °C. The results indicate that these behaviors were greatly influenced by extrusion forming, which reduced the coefficients of thermal expansion (CTE) of AZ91D and Al18B4O33w-AZ91D and resulted in negative strain. The residual stresses could be eliminated by thermal cycling. The CTE of the whisker-reinforced composites could be predicted accurately by micromechanical modelling.

KW - Extrusion

KW - Modelling

KW - Residual stresses

KW - Whisker-reinforced composites

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DO - 10.1016/j.scriptamat.2009.05.010

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SN - 1359-6462

VL - 61

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JO - Scripta Materialia

JF - Scripta Materialia

IS - 5

ER -

Effect of extrusion on the thermal expansion behavior of Al₁₈B₄O₃₃ whisker-Mg composites

Abstract

Keywords

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