scholarly journals A new method for preparation of tungsten carbide powder by in situ electrochemical reduction

2022 ◽  
Vol 134 ◽  
pp. 107179
Author(s):  
Liwen Zhang ◽  
Xiaoli Xi ◽  
Zuoren Nie
Keyword(s):  
Tungsten Carbide ◽  
Electrochemical Reduction ◽  
New Method ◽  
Carbide Powder ◽  
Tungsten Carbide Powder

Phase Analysis of Mechanically Alloyed In Situ Copper-Tungsten Carbide Composite

2010 ◽  
Vol 173 ◽  
pp. 67-71
Author(s):  
Zuhailawati Hussain ◽  
Mahani Yusoff ◽  
Radzali Othman
Keyword(s):  
Tungsten Carbide ◽  
High Energy ◽  
Carbide Powder ◽  
X Ray Diffraction ◽  
Mechanically Alloyed ◽  
High Energy Ball Mill ◽  
Tungsten Carbide Powder ◽  
Energy Ball ◽  
Tungsten Carbide Composite

An in-situ composite of copper and tungsten carbide powder was prepared by mechanical alloying of elemental powder. The sample has been milled in a high-energy ball mill for 20 h at different milling speed i.e. 100, 200, 300 and 400 rpm in an argon atmosphere. Investigations in terms of microstructural features and phase constitution of in-situ composites powder were performed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). At higher milling speed, W2C is found to be precipitated with a small amount of WC was formed. Crystallite size of copper is reducing while internal strain is increasing with increasing milling speed.

Surface Modification Process by Electrical Discharge Machining with Tungsten Carbide Powder Mixing in Kerosene Fluid

2019 ◽  
Vol 889 ◽  
pp. 115-122
Author(s):  
Van Tao Le ◽  
Tien Long Banh ◽  
Xuan Thai Tran ◽  
Nguyen Thi Hong Minh
Keyword(s):  
Surface Roughness ◽  
Tungsten Carbide ◽  
Electrical Discharge ◽  
Alloy Powder ◽  
Electrical Discharge Machining ◽  
Carbide Powder ◽  
Micro Hardness ◽  
Hard Materials ◽  
Tungsten Carbide Powder ◽  
Better Than

Electrical discharge machining (EDM) process is widely used to process hard materials in the industry. The process of electrical discharge is changed and called PMEDM when alloy powder is added in the oil dielectric. In the current study, the effect of tungsten carbide alloy powder added in the dielectric on the surface roughness (Ra) and the micro hardness of surface (HV) status of the workpiece SKD61 after machining is investigated. Studies show that the surface roughness and the micro hardness of surface obtained by PMEDM is generally better than that by normal EDM. The method can be applied for improving surface quality such as improving strengthening of molds and machine parts.

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