American Nuclear Society
Home

Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 64 / Number 2 / Pages 225-229

Preliminary Results of W Fiber Reinforced W (Wf/W) Composites Fabricated with Powder Metallurgy

S. X. Zhao, F. Liu, S. G. Qin, J. P. Song, G.-N. Luo

Fusion Science and Technology / Volume 64 / Number 2 / Pages 225-229

August 2013

Format:

Price:$30.00
Member Price:$27.00
Member Savings:$3.00

The first attempt at developing chopped W fiber-reinforced W (Wf/W) composites without an engineered interface or inter-phase employing hot isostatic pressing (HIP) has been made in order to study the feasibility of the powder metallurgy (PM) fabrication methodology. Micro-structures and flexural properties of sintered compacts have been examined by an optical microscope (OM), a scanning electron microscope (SEM) equipped with an electron back scattering diffraction (EBSD) instrument and three-point bending (3PB) tests. There are some chrysan-themum-like grains around each fiber in W matrices. Mechanical properties, namely strength and pseudo-plasticity, of the sintered compacts are far from satisfactory. Abnormal grain growth does not seem to have a preferential growing direction according to EBSD results. Possible causes for the abnormal grain growth and further mechanical property optimizations are hereby presented.

 
 
 
Questions or comments about the site? Contact the ANS Webmaster.
advertisement