Liquid Phase Diffusion Bonding of a Nickel-base Oxide Dispersion Strengthened Alloy MA 754

Grain Boundary Mobility in Fe-Base Oxide Dispersion Strengthened PM2000 Alloy

An alloy can be created without melting, by violently deforming mixtures of different powders. As first discovered by Benjamin, inert oxides can also be introduced into the microstructure using this technique. The resulting dispersion-strengthened alloyed powders are then consolidated using hot-isostatic pressing and extrusion, to produce a solid with a very fine grain structure on a sub-microm...

Spectroscopic Analyses of Nano-Dispersion Strengthened Transient Liquid Phase Bonds

Fabrication of Fe-Cr-Al Oxide Dispersion Strengthened PM2000 alloy using Selective Laser Melting**

The expansion in application of the selective laser melting (SLM) process for fabrication of new alloy materials continues. However, to date, there has been no investigation of the effect of this process on the final microstructure of ‘melt sensitive’ powder alloys such as mechanically alloyed oxide dispersion strengthened (ODS) FeCrAl. In this study commercial PM2000 powder, a ferritic ODS all...

Liquid phase bromination of phenols over silicotungstic acid immobilized on nickel oxide nanoparticles

Heteropoly acid promoted nanoparticle of nickel oxide samples were prepared by sol-gel method using heteropoly acids. Prepared composite was characterized by XRD, FT-IR and ICP technique. In this work, we have reported bromination of phenol, its derivatives and some aromatic compounds. The liquid phase bromination of phenol was Performed using heteropoly acids immobilized nanoparticle of nickel...

The effect of bonding temperature on the microstructure and mechanical properties of 939 super alloy by transient liquid phase bonding method

In this research, the effect of bonding temperature on the microstructure and mechanical properties of Inconel 939 super alloy by transient liquid phase bonding method. For this purpose, the middle layer of MBF20 with a thickness of 50 microns and three temperatures of 1060 °C, 1120 °C, 1180 °C and a time of 45 minutes have been used. In order to evaluate the microstructure, a scanning electron...