Microstructure and Lattice Parameters of AIN Particle-Reinforced Magnesium Matrix Composites Fabricated by Powder Metallurgy

被引：6

作者：

Jie Chen ^{[1
]}

Chong-Gao Bao ^{[1
]}

Yong Wang ^{[1
]}

Jin-Ling Liu ^{[2
]}

Challapalli Suryanarayana ^{[3
]}

机构：

[1] State Key Laboratory for Mechanical Behavior of Materials,School of Materials Science and Engineering,Xi'an Jiaotong University

[2] State Key Laboratory of Traction Power,School of Mechanics and Engineering,Southwest Jiaotong University

[3] Department of Mechanical and Aerospace Engineering,University of Central Florida

来源：

ActaMetallurgicaSinica(EnglishLetters) | 2015年 / 28卷 / 11期

关键词：

Metal matrix composite; A1N particle; Microstructure; Lattice parameter; Powder metallurgy; Solid solubility;

D O I：

暂无

中图分类号：

TF125 [粉末冶金制品及其应用];

学科分类号：

080502 ;

摘要：

Magnesium matrix composites reinforced with A1N particles were fabricated by the powder metallurgy technique.The evolution of lattice constants and solid solubility levels of Al in a-Mg and the microstructure of Mg-Al/AIN composites were investigated in the present study.The results showed that the solid solubility of Al in ot-Mg reached a relatively high level by the P/M process with a long time of milling.X-ray diffraction showed that the peaks of Mg phase clearly shifted to higher angles.The lattice constants and cell volume decreased significantly compared with those of standard Mg due to a significant amount of Al incorporated into a-Mg in the form of substitutional solid solution.The degree of lattice deformation decreased at a low sintering temperature and increased at higher sintering temperatures due to the presence of A1N.Microstructural characterization of the composites revealed a necklace distribution of A1N particles in the Mg matrix.Heat treatment led to precipitation of Mg17Al12from the supersaturated a-Mg solid solution.The precipitate exhibited granular and lath-shaped morphologies in Mg matrix and flocculent precipitation around A1 N particles.

引用

页码：1354 / 1363

页数：10

共 17 条

[1]

Thermal conductivity of as-cast and as-extruded binary Mg–Al alloys[J] . T. Ying,M.Y. Zheng,Z.T. Li,X.G. Qiao.Journal of Alloys and Compounds . 2014

[2]

Synthesis of Mg–Al 2 O 3 nanocomposites by mechanical alloying[J] . Jinling Liu,C. Suryanarayana,Dipankar Ghosh,Ghatu Subhash,Linan An.Journal of Alloys and Compounds . 2013

[3]

Effect of hot-deformation on microstructure and mechanical properties of AZ80 magnesium alloy[J] . Zitian Wang,Yaqin Yang,Baocheng Li,Yanhui Zhang,Zhimin Zhang.Materials Science ＆ Engineering A . 2013

[4]

Dynamic recrystallization behavior of particle reinforced Mg matrix composites fabricated by stir casting[J] . X.J. Wang,X.S. Hu,K.B. Nie,K.K. Deng,K. Wu,M.Y. Zheng.Materials Science ＆ Engineering A . 2012

[5]

Synthesis and characterization of Mg-AZ91/AlN composites[J] . E. Bedolla,J. Lemus-Ruiz,A. Contreras.Materials and Design . 2012

[6]

Correlation between microstructure and tensile properties in powder metallurgy AZ91 alloys[J] . Zhenya Zhang,Huashun Yu,Gang Chen,Hui Yu,Changzheng Xu.Materials Letters . 2011 (17)

[7]

Effects of rare-earth elements Gd and Y on the solid solution strengthening of Mg alloys[J] . L. Gao,R.S. Chen,E.H. Han.Journal of Alloys and Compounds . 2009 (1)

[8] Effect of alloying elements on the elastic properties of Mg from first-principles calculations [J].

Ganeshan, S. ;

Shang, S. L. ;

Wang, Y. ;

Liu, Z. -K. .

ACTA MATERIALIA, 2009, 57 (13) :3876-3884

[9]

Using ab initio calculations in designing bcc Mg–Li alloys for ultra-lightweight applications[J] . W.A. Counts,M. Friák,D. Raabe,J. Neugebauer.Acta Materialia . 2008 (1)

[10]

Mechanical properties of nanostructured Mg–5＜ce:hsp sp="0.25"/＞wt%Al– x ＜ce:hsp sp="0.25"/＞wt%AlN composite synthesized from Mg chips[J] . Maung Aye Thein,L. Lu,M.O. Lai.Composite Structures . 2006 (1)

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