|About this Abstract
||Materials Science & Technology 2019
||Sintering and Related Powder Processing Science and Technologies
||Development of Tungsten Based Plates by Spark Plasma Sintering
||Dibyendu Chakravarty, Vijay Ravula
|On-Site Speaker (Planned)
Tungsten based structural components are conventionally produced from wrought tungsten by sintering or hot isostatic pressing followed by hot rolling at high temperatures. This work presents an alternate route for developing these components by employing a simple and cost effective powder metallurgy route involving the spark plasma sintering (SPS) facility.
Extensive R&D was carried out to optimize the powder composition, milling conditions, reduction parameters and SPS conditions to obtain density of 99% along with high hardness of 450-500 HV10 and room temperature bending strength in excess of 750 MPa. Small quantities of additives play a critical role in achieving high density and the desired physical and mechanical properties. Microstructural investigations were carried out to explain the enhanced densification at lower temperatures and the improved properties obtained therein.
The current presentation showcases the intricacies of the work involved and the possible solutions, to come up with upscaled products for commercial usage.
||Definite: At-meeting proceedings