Paper Title:
Fabrication of Mg-W System FGM with Density Gradient by Hot-Press Sintering
  Abstract

Functionally graded material (FGM) with density gradient has showed great potentials as flier-plate for creating quasi-isentropic compression waves. In order to obtain a FGM with low density in the front face and with a wide density range, the Mg-W system gradient material is designed, and the power metallurgy method and hot-press (HP) sintering are chosen for its fabrication. The sintering of Mg-W alloys is studied at relative low temperatures and the processing of densification is mainly investigated. It is found that, up to 85wt%W, the approximately wholly dense Mg-W system alloys are achieved at 620°C for 1.5 hours under a pressure of 100MPa. Mainly the mechanical mixtures of Mg and W are formed in Mg-W alloys. And the Mg-W alloys are fully densified at 620°C due to the conglutination of Mg, a small amount of which are melting in this experimental condition. Finally, the Mg-W system FGM with a wide density gradient from 1.74g/cm3 to 7.56 g/cm3 within the 3.50mm thickness range is fabricated at the sintering parameter of 620°C-100MPa-1.5hours.

  Info
Periodical
Edited by
Takashi Goto, Yibing Cheng, Zhengyi Fu and Lianmeng Zhang
Pages
246-249
DOI
10.4028/www.scientific.net/AMR.66.246
Citation
Q. Q. Wei, G. Q. Luo, Q. Shen, L. M. Zhang, "Fabrication of Mg-W System FGM with Density Gradient by Hot-Press Sintering", Advanced Materials Research, Vol. 66, pp. 246-249, 2009
Online since
April 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: D.P. Zhang, D.Q. Fang, J. Wang, D.X. Tang, H.Y. Lu, L.S. Zhao, Jian Meng
Abstract:A new series of magnesium-rare earth master alloys have been developed by the electrowinning method with subsidence cathode in the...
235
Authors: S.G. Shabestari, M.M. Hejazi, M. Bahramifar
Abstract:The effect of magnesium addition up to 0.9 wt.% on the microstructure and mechanical properties of Al-9Si-0.35Mn alloy has been investigated...
415
Authors: Lidia Lityńska-Dobrzyńska, Patrick Ochin, Anna Góral, Marek Faryna, Jan Dutkiewicz
Abstract:The effect of rapid solidification on the microstructure of Al-Zn-Mg-Cu alloys with 8 wt.% Zn-2 wt.% Mg-2.3 wt.% Cu and 0.2 or 0.5 wt.% of Zr...
42
Authors: Ying Bo Zhang, Hong Gao, Gao Feng Quan, Zhao Ming Liu
Metal Alloy Materials
Abstract:The microstructures and mechanical properties of quasicrystal reinforced Mg-Al-Zn-Y alloys with different Y and Zn contents were...
697
Authors: Dai Dong Zhang, Xiao Ru Zhang, Xiu Qin Ge, Da Qing Fang, Xue Hua Yu
Chapter 2: Modeling, Analysis and Simulation of Manufacturing Processes
Abstract:The effect of low content of Ca (0.9 or less)on the microstructure and mechanical properties of AZ63 alloys were studied in this paper. The...
579