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Widmanstatten structures

Yang, J. and Goldstein, J. I. (2005) The formation of the Widmanstatten structure in meteorites. Meteoritics and Planetary Science, 40, 239-253. [Pg.411]

Slicing, etching, and polishing an iron meteorite reveals a delicate interlocking pattern of crystals. This is called a Widmanstatten structure, and it is the unique fingerprint of each meteorite. These patterns can only form in low gravity environments and are not found in rocks on Earth. [Pg.50]

The low carbon limit to the HfC phase is HfCo.52 o.oi the invariant temperature (Sara, 1965b Rudy, 1965). This boundary moves to higher carbon contents as the temperature is lowered with the appearance of a Widmanstatten structure. Below 1900° the boundary is near HfCo.e (Rudy, 1965 Benesovsky and Rudy, 1960). The high carbon phase... [Pg.37]

U2C3 has been a very elusive compound which is not normally found in material quenched from above 1800°. Early workers at Iowa State College suggested, as one explanation for the Widmanstatten structure exhibited by material quenched from the melt, that a U2C3 phase existed at high temperatures, but it could not be retained upon cooling (Bundle... [Pg.179]

M7 Meteorite iron with Widmanstatten structure, found in Xiquipilco, the Toluca region in Mexico. [Pg.1288]

Ti-6211 Summary of heat treatment and microstructure of the Widmanstatten-type structure... [Pg.179]

At low strains for both Widmanstatten + grain boimdary and equiaxed a structures, crack initiation took place at a-P interfaces and in the aged P matrix. In Widmanstatten -i- grain boundary a structures, profuse extrusion formation was noted as well. At higher strains, cracking was more predominant at sHp bands within a. [Pg.281]

Phases and Structures. The microstructural response of 62S to heat treatment is quite similar to that of Ti-6A1-4V The transformed P microstructure is typically a colony structure after air cooling, but can be Widmanstatten for more rapid coohng. [Pg.333]

The structures of vanadium and niobium diboride crystals (161) resemble those of tantalum diboride grown by the floating-zone method (162). Widmanstatten-type precipitates found in... [Pg.38]


See other pages where Widmanstatten structures is mentioned: [Pg.809]    [Pg.73]    [Pg.1286]    [Pg.556]    [Pg.1315]    [Pg.32]    [Pg.35]    [Pg.178]    [Pg.222]    [Pg.809]    [Pg.73]    [Pg.1286]    [Pg.556]    [Pg.1315]    [Pg.32]    [Pg.35]    [Pg.178]    [Pg.222]    [Pg.72]    [Pg.1264]    [Pg.1285]    [Pg.1286]    [Pg.550]    [Pg.180]    [Pg.116]    [Pg.3130]    [Pg.168]    [Pg.18]    [Pg.160]    [Pg.168]    [Pg.640]    [Pg.1314]    [Pg.1315]    [Pg.918]    [Pg.1297]    [Pg.123]    [Pg.260]    [Pg.268]    [Pg.281]    [Pg.381]    [Pg.382]    [Pg.601]    [Pg.173]   
See also in sourсe #XX -- [ Pg.73 , Pg.99 , Pg.569 ]

See also in sourсe #XX -- [ Pg.20 , Pg.124 ]

See also in sourсe #XX -- [ Pg.20 , Pg.124 ]




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