By a News Reporter-Staff News Editor at Science Letter -- Fresh data on Nuclear Materials are presented in a new report. According to news originating from Eggenstein Leopoldshafen, Germany, by NewsRx correspondents, research stated, "Ferritic oxide dispersion strengthened (ODS) steels are well suited as structural materials, e.g. for claddings in fission reactors and for plasma facing components in fusion power plants due to their high mechanical and oxidation stability at high temperatures and their high irradiation resistance. PM2000 is an iron based ODS ferritic steel with homogeneously distributed nanometric yttria particles."
Our news journalists obtained a quote from the research from the Karlsruhe Institute of Technology, "Melting joining techniques are not suitable for such ODS materials because of the precipitation and agglomeration of the oxide particles and hence the loss of their strengthening effect. Solid state diffusion bonding is thus chosen to join PM2000 and is investigated in this work with a focus on oxide particles. The diffusion bonding process is aided by the computational modeling, including the influence of the ODS particles. For modeling the microstructure stability and the creep behavior of PM2000 at various, diffusion bonding relevant temperatures (50-80% T-m) are investigated. Particle distribution (TEM), strength (tensile test) and toughness (Charpy impact test) obtained at temperatures relevant for bonding serve as input for the prediction of optimal diffusion bonding parameters."
According to the news editors, the research concluded: "The optimally bonded specimens show comparable strength and toughness relative to the base material."
For more information on this research see: Diffusion bonding of the oxide dispersion strengthened steel PM2000. Journal of Nuclear Materials, 2013;443(1-3):78-83. Journal of Nuclear Materials can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Nuclear Materials - www.elsevier.com/wps/product/cws_home/505671)
The news correspondents report that additional information may be obtained from W. Sittel, Karlsruhe Inst Technol, Inst Appl Mat, D-76344 Eggenstein Leopoldshafen, Germany. Additional authors for this research include W.W. Basuki and J. Aktaa (see also Nuclear Materials).
Keywords for this news article include: Europe, Germany, Nuclear Materials, Eggenstein Leopoldshafen
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC