The NbC particles were also equiaxed and occurred either as isolated particles in the interior of the grains or as clusters at the grain boundaries. Whereas in the Ti-containing alloy the TiC phase tended to occur in the form of needles, the precipitates were more equiaxed in the Zr-containing alloy. The precipitate morphologies were also very different in the three alloys. NASA Headquarters, left, Kent Kellogg, SMAP project manager, NASA Jet. In addition, an unidentified Fe-Al-Zr phase with a Zr concentration of approximately 23 at.% as well as ZrC were found. Kent, WA, USA - FebruBuildings at the Blue Origin. This refers to a 8 mm film that the lodge. In 1940, The OA National Bulletin commented on a new and extremely interesting visual material for camp promotion that was created by our lodge. While the Ti- and Nb-containing alloys formed, as expected, TiC and NbC precipitates, the Zr-containing alloy contained a ternary intermetallic phase (Fe 6Al 6Zr). The Wa-Hi-Nasa Lodge has always been built out of summer camp, so the lodge has always been one of the biggest supporters of camp and camp promotion. The precipitate volume fractions and lattice parameters were consistent with the low predicted solubilities in these alloys. All three alloys were extruded and exhibited small grain sizes ranging from 12 to 40 μm. Three iron aluminide alloys with the composition Fe-40Al- 0.5X-0.2C-0.05B, in at.% (X = Ti, Zr, Nb), have been investigated by means of optical, scanning and transmission electron microscopy. 350.org is turning the page on the fossil fuel industry and building a clean, just future by connecting powerful grassroots climate movements around the.
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