Preparation and Characterization of Tungsten Heavy Alloy Feedstock for Metal Injection Molding

Syed Humail Islam; Xuan Hui Qu; M. Tufail

doi:10.4028/www.scientific.net/AMR.26-28.363

Paper Titles

Physical Characteristic of Ready Mixed Concrete with Different Replacement Ratio of Recycled Aggregate
p.345

Evaluation of the Influence of Additives on the Mechanical Properties and Photo-Stability of Glass Fiber Reinforced Epoxy Pipes Using Central Composite Design
p.349

Microstructure, Hardness, and Wear Resistance of Powder-Injection-Molded Products of Fe-Based Metamorphic Powders
p.355

Fabrication of Sandwich Structure with Superplastic Forming Process from Diffusion Bonded Ti-6Al-4V Sheets
p.359

Preparation and Characterization of Tungsten Heavy Alloy Feedstock for Metal Injection Molding
p.363

The Effect of Isothermal Forging Process Parameters on the Microstructure and the Properties of TA15 Near α Titanium Alloy
p.367

Temperature Dependent Microstructure and Mechanical Behavior in AZ31 Alloy Processed by an Asymmetric Rolling
p.373

Research on Horizontal Electromagnetic Continuous Casting of Sn-P Bronze Strips
p.377

Effects of Temperature and Strain Rate on Compressive Mechanical Properties of Ultrafine-Grained CP Titanium
p.381

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 26-28Preparation and Characterization of Tungsten Heavy...

Preparation and Characterization of Tungsten Heavy Alloy Feedstock for Metal Injection Molding

Abstract:

In this study, the effect of various binders’ compositions on the feedstock of pre-alloyed tungsten heavy alloys (WHAs) powders has been investigated. Four kinds of wax-based binders were prepared from paraffin wax (PW), high-density polyethylene (HDPE), polypropylene (PP) and stearic acid (SA), and the characteristic of each feedstock was investigated at various temperatures and shear rates. It was found that all the feedstocks exhibited pseudoplastic flow behavior. Feedstock having multi-polymer components showed better rheological properties than those having mono-polymer because of good wettability between powder and binder, and less sensitivity to temperature and shear rates. This could be due to the molecular weight and length of molecular chain of PP and HDPE.