Synthesis and compressive deformation of rapidly solidified magnesium alloy and composites reinforced by SiCp

J. Q. Li; L. Wang; H. W. Cheng; H. F. Zhang; Z. Q. Hu; H. N. Cai

doi:10.1016/j.msea.2007.05.001

Synthesis and compressive deformation of rapidly solidified magnesium alloy and composites reinforced by SiC_p

J. Q. Li, L. Wang^*, H. W. Cheng, H. F. Zhang, Z. Q. Hu, H. N. Cai

^*Corresponding author for this work

School of Material Science and Engineering

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

18 Citations (Scopus)

Abstract

In this paper, rapidly solidified magnesium-aluminum (AZ91HP) alloy and magnesium alloy matrix composites reinforced by SiC_p were prepared successfully by the method of rapid solidification. Microstructure of rapidly solidified AZ91HP alloy was greatly refined through the process of rapid solidification compared with as-cast AZ91HP alloy. With increasing SiC content, 0.2% YS and ultimate compressive strength of composites had been improved significantly compared with the unreinforced counterparts, accompanied by a reduction of total strain. In quasi-static compressive tests, failure in form of decohesion at the particulate-matrix interface was observed numerously as a dominant failure mode of composites. Failure of the large-sized SiC_p and particulate clusters occurred widely because of the higher strain-rate and the greater load transfer from the ductile matrix to the brittle particulates in dynamic deformation.

Original language	English
Pages (from-to)	24-29
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	474
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.05.001
Publication status	Published - 15 Feb 2008

Keywords

Dynamic
Magnesium alloy
Mechanical properties
Microstructure

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10.1016/j.msea.2007.05.001

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title = "Synthesis and compressive deformation of rapidly solidified magnesium alloy and composites reinforced by SiCp",

abstract = "In this paper, rapidly solidified magnesium-aluminum (AZ91HP) alloy and magnesium alloy matrix composites reinforced by SiCp were prepared successfully by the method of rapid solidification. Microstructure of rapidly solidified AZ91HP alloy was greatly refined through the process of rapid solidification compared with as-cast AZ91HP alloy. With increasing SiC content, 0.2% YS and ultimate compressive strength of composites had been improved significantly compared with the unreinforced counterparts, accompanied by a reduction of total strain. In quasi-static compressive tests, failure in form of decohesion at the particulate-matrix interface was observed numerously as a dominant failure mode of composites. Failure of the large-sized SiCp and particulate clusters occurred widely because of the higher strain-rate and the greater load transfer from the ductile matrix to the brittle particulates in dynamic deformation.",

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T1 - Synthesis and compressive deformation of rapidly solidified magnesium alloy and composites reinforced by SiCp

AU - Li, J. Q.

AU - Wang, L.

AU - Cheng, H. W.

AU - Zhang, H. F.

AU - Hu, Z. Q.

AU - Cai, H. N.

PY - 2008/2/15

Y1 - 2008/2/15

N2 - In this paper, rapidly solidified magnesium-aluminum (AZ91HP) alloy and magnesium alloy matrix composites reinforced by SiCp were prepared successfully by the method of rapid solidification. Microstructure of rapidly solidified AZ91HP alloy was greatly refined through the process of rapid solidification compared with as-cast AZ91HP alloy. With increasing SiC content, 0.2% YS and ultimate compressive strength of composites had been improved significantly compared with the unreinforced counterparts, accompanied by a reduction of total strain. In quasi-static compressive tests, failure in form of decohesion at the particulate-matrix interface was observed numerously as a dominant failure mode of composites. Failure of the large-sized SiCp and particulate clusters occurred widely because of the higher strain-rate and the greater load transfer from the ductile matrix to the brittle particulates in dynamic deformation.

AB - In this paper, rapidly solidified magnesium-aluminum (AZ91HP) alloy and magnesium alloy matrix composites reinforced by SiCp were prepared successfully by the method of rapid solidification. Microstructure of rapidly solidified AZ91HP alloy was greatly refined through the process of rapid solidification compared with as-cast AZ91HP alloy. With increasing SiC content, 0.2% YS and ultimate compressive strength of composites had been improved significantly compared with the unreinforced counterparts, accompanied by a reduction of total strain. In quasi-static compressive tests, failure in form of decohesion at the particulate-matrix interface was observed numerously as a dominant failure mode of composites. Failure of the large-sized SiCp and particulate clusters occurred widely because of the higher strain-rate and the greater load transfer from the ductile matrix to the brittle particulates in dynamic deformation.

KW - Dynamic

KW - Magnesium alloy

KW - Mechanical properties

KW - Microstructure

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U2 - 10.1016/j.msea.2007.05.001

DO - 10.1016/j.msea.2007.05.001

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SN - 0921-5093

VL - 474

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JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Synthesis and compressive deformation of rapidly solidified magnesium alloy and composites reinforced by SiC_p

Abstract

Keywords

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