Mg-Cu-Gd layered composite plate synthesized via the spray forming process

被引：8

作者：

Chang, K. F. ^{[1
,2
]}

Guo, M. -L. T. ^{[1
,2
]}

Kong, R. H. ^{[1
,2
]}

Tsao, Chi Y. A. ^{[1
,2
]}

Huang, J. C. ^{[3
]}

Jang, J. S. C. ^{[4
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan

[2] Natl Cheng Kung Univ, Frontier Mat & MicroNano Sci & Technol Ctr, Tainan 70101, Taiwan

[3] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Kaohsiung 804, Taiwan

[4] I Shou Univ, Dept Mat Sci & Engn, Ta Hsu Hsiang 840, Kaohsiung Cty, Taiwan

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 477卷 / 1-2期

关键词：

spray forming; bulk metallic glass; glass forming ability; Mg-Cu-Gd alloy; layered composite;

D O I：

10.1016/j.msea.2007.09.079

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A layered composite plate of Mg-Cu-Gd was produced by spray forming with dimensions of 300 turn in diameter and 12 mm in maximum thickness, with a Gaussian distribution and a weight of 510g. The deposit comprised of a nearly complete glassy structure at the bottom, glassy/crystalline structure in the middle (up to 6 turn from substrate), and a completely crystallized structure at the deposit top. The porosity of the spray-formed Mg-Cu-Gd layered composite plate varied from the near substrate interface to the near free surface. The chemical composition of the spray-formed Mg-Cu-Gd layered composite plate varied from near the substrate to near free surface, with increasing Cu + Gd concentration towards the substrate because segregation during melting. The glass forming ability of the spray-formed Mg-Cu-Gd layered composite plate was studied. The hardness of the spray-formed Mg-Cu-Gd layered composite plate varied due to variations in the local microstructures and phases, and porosity. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：58 / 62

页数：5

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