An improved two-stage sintering method for tungsten heavy alloys: conventional solid-phase sintering followed by microwave heating
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Jiajia Zhang
Abstract
93W-4.9Ni-2.1Fe (wt.%) alloys were fabricated by means of conventional two-stage sintering, direct microwave sintering and improved two-stage sintering. A more homogeneous microstructure was found in both the direct microwave sintered alloy and the improved two-stage sintered alloy. Numerous pores were present in the direct microwave sintered alloy, but few could be seen in the improved two-stage sintered alloy. The mechanical properties of the improved two-stage sintered alloy were greatly enhanced as compared to those of the direct microwave sintered alloy. These findings suggested that the improved two-stage sintering had little negative effect on absorbing microwaves and could reduce pore defects, which implied a promising sintering process for tungsten heavy alloys and others with liquid stage sintering.
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Articles in the same Issue
- Contents
- Contents
- Original Contributions
- A novel roll-bonding methodology for the cross-scale analysis of phase properties and interactions in multiphase structural materials
- Excellent cold rollability in a single pass of an Mg-4Er (wt.%) alloy
- An experimental study of the precipitation kinetics of pre-rolled Ni-Span-C 902 superalloy
- Influences of high temperature on the microstructural, electrical and mechanical properties of Ni-23 wt.% Al alloy
- Investigation of the wear resistance and microstructure of Al/SiC metal matrix composites as a function of reinforcement volume fraction and reinforcement to matrix particle size ratio applying artificial neural network
- Influence of zinc (II) ion concentration on Ni–Zn–P coatings deposited onto aluminum and their corrosion behavior
- Joining steel to aluminum alloy by resistance spot welding with a rivet
- Electrophysical and structure-sensitive properties of liquid Ga–In alloys
- Short Communications
- Synthesis and characterization of the novel nanocomposite Co(OH)2/graphene as supercapacitor materials
- Preparation of MnAlC flakes by surfactant-assisted ball-milling and the effects of annealing
- An improved two-stage sintering method for tungsten heavy alloys: conventional solid-phase sintering followed by microwave heating
- Effect of excess Pb on ferroelectric characteristics of conductive Al-doped ZnO and Sn-doped In2O3 top electrodes in PbLaZrTiOx capacitors
- Effects of La–Zn substituent and calcination temperature on the microstructure and magnetic properties of Sr-ferrites
- Predicting the corrosion tendency of α-brass in acidic and alkaline tap water
- People
- 10.3139/146.610026
- DGM News
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