The high strain rate compressive response of Mg-Al alloy/fly Ash cenosphere composites

Dung D. Luong; Nikhil Gupta; Pradeep K. Rohatgi

doi:10.1007/s11837-011-0028-z

The high strain rate compressive response of Mg-Al alloy/fly Ash cenosphere composites

Dung D. Luong, Nikhil Gupta, Pradeep K. Rohatgi

Mechanical and Aerospace Engineering

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

Abstract

The strain rate dependence of mechanical properties of AZ91D alloy composites filled with 5 wt.% hollow fly ash cenosphere is examined in the strain rate range of 630-1,203 s^-1 using a split-Hopkinson pressure bar system. In addition, a test scheme is designed to study the intermediate strain rate response of the material. Addition of fly ash caused grain refinement and finer precipitates in the matrix alloy. Compared to the matrix alloy, the energy absorption is higher in AZ91D/fly ash cenosphere composites at comparable strain rates. In addition, the yield strength is found to be about 19-41% higher in the composites containing fly ash cenospheres.

Original language	English (US)
Pages (from-to)	48-52
Number of pages	5
Journal	JOM
Volume	63
Issue number	2
DOIs	https://doi.org/10.1007/s11837-011-0028-z
State	Published - Feb 2011

ASJC Scopus subject areas

General Materials Science
General Engineering

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title = "The high strain rate compressive response of Mg-Al alloy/fly Ash cenosphere composites",

abstract = "The strain rate dependence of mechanical properties of AZ91D alloy composites filled with 5 wt.% hollow fly ash cenosphere is examined in the strain rate range of 630-1,203 s-1 using a split-Hopkinson pressure bar system. In addition, a test scheme is designed to study the intermediate strain rate response of the material. Addition of fly ash caused grain refinement and finer precipitates in the matrix alloy. Compared to the matrix alloy, the energy absorption is higher in AZ91D/fly ash cenosphere composites at comparable strain rates. In addition, the yield strength is found to be about 19-41% higher in the composites containing fly ash cenospheres.",

author = "Luong, {Dung D.} and Nikhil Gupta and Rohatgi, {Pradeep K.}",

note = "Funding Information: This work is supported by the Na tional Science Foundation grant CMMI–0726723 and Offi ce of Naval Research grant N00014-10-1-0988. The views expressed in the article are those of the authors not the funding agencies. The authors thank Alessan dro Betti, Vasanth Chakravarthy Shun- mugasamy, and Gleb Dorogokupets for help in material fabrication and speci men preparation. Benjamin F. Schultz and John Defouw are acknowledged for providing constructive feedback.",

year = "2011",

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doi = "10.1007/s11837-011-0028-z",

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AU - Luong, Dung D.

AU - Gupta, Nikhil

AU - Rohatgi, Pradeep K.

N1 - Funding Information: This work is supported by the Na tional Science Foundation grant CMMI–0726723 and Offi ce of Naval Research grant N00014-10-1-0988. The views expressed in the article are those of the authors not the funding agencies. The authors thank Alessan dro Betti, Vasanth Chakravarthy Shun- mugasamy, and Gleb Dorogokupets for help in material fabrication and speci men preparation. Benjamin F. Schultz and John Defouw are acknowledged for providing constructive feedback.

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N2 - The strain rate dependence of mechanical properties of AZ91D alloy composites filled with 5 wt.% hollow fly ash cenosphere is examined in the strain rate range of 630-1,203 s-1 using a split-Hopkinson pressure bar system. In addition, a test scheme is designed to study the intermediate strain rate response of the material. Addition of fly ash caused grain refinement and finer precipitates in the matrix alloy. Compared to the matrix alloy, the energy absorption is higher in AZ91D/fly ash cenosphere composites at comparable strain rates. In addition, the yield strength is found to be about 19-41% higher in the composites containing fly ash cenospheres.

AB - The strain rate dependence of mechanical properties of AZ91D alloy composites filled with 5 wt.% hollow fly ash cenosphere is examined in the strain rate range of 630-1,203 s-1 using a split-Hopkinson pressure bar system. In addition, a test scheme is designed to study the intermediate strain rate response of the material. Addition of fly ash caused grain refinement and finer precipitates in the matrix alloy. Compared to the matrix alloy, the energy absorption is higher in AZ91D/fly ash cenosphere composites at comparable strain rates. In addition, the yield strength is found to be about 19-41% higher in the composites containing fly ash cenospheres.

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The high strain rate compressive response of Mg-Al alloy/fly Ash cenosphere composites

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