Microstructure and properties of hot-extruded B4Cp/AZ91 composites prepared by semisolid stirring method

Hongqiang Nan; Jinshan Li; Shaohua Ju; Rui Hu; Zongchao Kou; Lian Zhou

Microstructure and properties of hot-extruded B₄C_p/AZ91 composites prepared by semisolid stirring method

Hongqiang Nan, Jinshan Li, Shaohua Ju, Rui Hu, Zongchao Kou, Lian Zhou

School of Materials Sience and Engineering

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

2 Scopus citations

Abstract

Particulate reinforced magnesium alloy matrix composites B₄C_p/AZ91 were successfully fabricated by semisolid stirring method. The experiment results indicated that the B₄C_p/AZ91 composites have a uniform B₄C particle distribution and excellent properties. After hot-extrusion, the density of B₄C_p/AZ91 composites and the tensile strength were 1.873 g/cm³ and 282.8 MPa respectively. The linearity expansion coefficient was 19×10^-6 K^-1 at 0 to 100 °C. Hot-extrusion can significantly improve density, particle distribution of composites and refine the B₄C particles. After hot-extrusion, the small scale conglomerations of B₄C particles would not impair the microstructure and properties of B₄C_p/AZ91 composites because of inflation mechanism of matrix alloy and coordinated deformation between particles and matrix. Moreover, analyses of fractures indicated that the higher bond strength interface was formed between particles and matrix alloy after hot-extrusion process.

Original language	English
Pages (from-to)	2041-2044
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	37
Issue number	11
State	Published - Nov 2008

Keywords

Hot-extrusion
Magnesium matrix composites
Microstructure
Properties
Semisolid stirring

Cite this

@article{60372a28294b4a079846bc79d8ba279d,

title = "Microstructure and properties of hot-extruded B4Cp/AZ91 composites prepared by semisolid stirring method",

abstract = "Particulate reinforced magnesium alloy matrix composites B4Cp/AZ91 were successfully fabricated by semisolid stirring method. The experiment results indicated that the B4Cp/AZ91 composites have a uniform B4C particle distribution and excellent properties. After hot-extrusion, the density of B4Cp/AZ91 composites and the tensile strength were 1.873 g/cm3 and 282.8 MPa respectively. The linearity expansion coefficient was 19×10-6 K-1 at 0 to 100 °C. Hot-extrusion can significantly improve density, particle distribution of composites and refine the B4C particles. After hot-extrusion, the small scale conglomerations of B4C particles would not impair the microstructure and properties of B4Cp/AZ91 composites because of inflation mechanism of matrix alloy and coordinated deformation between particles and matrix. Moreover, analyses of fractures indicated that the higher bond strength interface was formed between particles and matrix alloy after hot-extrusion process.",

keywords = "Hot-extrusion, Magnesium matrix composites, Microstructure, Properties, Semisolid stirring",

author = "Hongqiang Nan and Jinshan Li and Shaohua Ju and Rui Hu and Zongchao Kou and Lian Zhou",

year = "2008",

month = nov,

language = "英语",

volume = "37",

pages = "2041--2044",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

publisher = "Science Press ",

number = "11",

}

TY - JOUR

T1 - Microstructure and properties of hot-extruded B4Cp/AZ91 composites prepared by semisolid stirring method

AU - Nan, Hongqiang

AU - Li, Jinshan

AU - Ju, Shaohua

AU - Hu, Rui

AU - Kou, Zongchao

AU - Zhou, Lian

PY - 2008/11

Y1 - 2008/11

N2 - Particulate reinforced magnesium alloy matrix composites B4Cp/AZ91 were successfully fabricated by semisolid stirring method. The experiment results indicated that the B4Cp/AZ91 composites have a uniform B4C particle distribution and excellent properties. After hot-extrusion, the density of B4Cp/AZ91 composites and the tensile strength were 1.873 g/cm3 and 282.8 MPa respectively. The linearity expansion coefficient was 19×10-6 K-1 at 0 to 100 °C. Hot-extrusion can significantly improve density, particle distribution of composites and refine the B4C particles. After hot-extrusion, the small scale conglomerations of B4C particles would not impair the microstructure and properties of B4Cp/AZ91 composites because of inflation mechanism of matrix alloy and coordinated deformation between particles and matrix. Moreover, analyses of fractures indicated that the higher bond strength interface was formed between particles and matrix alloy after hot-extrusion process.

AB - Particulate reinforced magnesium alloy matrix composites B4Cp/AZ91 were successfully fabricated by semisolid stirring method. The experiment results indicated that the B4Cp/AZ91 composites have a uniform B4C particle distribution and excellent properties. After hot-extrusion, the density of B4Cp/AZ91 composites and the tensile strength were 1.873 g/cm3 and 282.8 MPa respectively. The linearity expansion coefficient was 19×10-6 K-1 at 0 to 100 °C. Hot-extrusion can significantly improve density, particle distribution of composites and refine the B4C particles. After hot-extrusion, the small scale conglomerations of B4C particles would not impair the microstructure and properties of B4Cp/AZ91 composites because of inflation mechanism of matrix alloy and coordinated deformation between particles and matrix. Moreover, analyses of fractures indicated that the higher bond strength interface was formed between particles and matrix alloy after hot-extrusion process.

KW - Hot-extrusion

KW - Magnesium matrix composites

KW - Microstructure

KW - Properties

KW - Semisolid stirring

UR - http://www.scopus.com/inward/record.url?scp=57849162431&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:57849162431

SN - 1002-185X

VL - 37

SP - 2041

EP - 2044

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 11

ER -

Microstructure and properties of hot-extruded B₄C_p/AZ91 composites prepared by semisolid stirring method

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