β Scribed by Dr. U. Brill
No coin nor oath required. For personal study only.
For several decades the ordered intermetallic phases have been of special interest for structural applications, because they combine good high temperature tensile strength with oxidation resistance even at high temperatures. Significant improvements in microalloying and metallurgical techniques have enabled an industrial production of Ni~3~Al. Examinations of the high temperature corrosion behaviour of this material were intended to give informations about potential applications. For this purpose the alloy was tested in the temperature range of 750Β°C to 1000Β°C in typical oxidizing, carburizing, sulfidizing and chloridizing environments. Time and temperature dependence of mass change were examined as well as the microstructural appearance of the specimens after the tests. The results show markedly improved oxidation, carburization and chlorination resistance, when compared with the commercial alloys 800 H and 617 while the sulfidation resistance of Ni~3~Al is quite poor.
π SIMILAR VOLUMES
Deformation behavior of MgCu, Laves phase intermetallic compound were studied by compression experiments. MgCu, was plastically deformed at the temperature above 673 K, when the strain-rate was low. The large temperature and strain-rate dependences of the stress and small activation volumes obtained
Metallic bipolar plate Phosphoric acid ## Corrosion resistance Polarisation
## Abstract The Generation IV International Forum has selected six promising nuclear power systems for further collaborative investigations and development. Among these six concepts, two candidates are Gas Cooled Reactors (GCR), namely the Very High Temperature Reactor (VHTR) and the Gasβcooled Fas