Änderungen

Der oben erwähnte Appendix C erlangte seine Brisanz durch Fehlinterpretationen:

Der oben erwähnte Appendix C erlangte seine Brisanz durch Fehlinterpretationen:

:''Evidence of a severe high temperature corrosion attack on the steel, including oxidation and sulfidation with subsequent intergranular melting, was readily visible in the near-surface microstructure. A liquid eutectic mixture containing primarily iron, oxygen, and sulfur formed during this hot corrosion attack on the steel.

:''Evidence of a severe high temperature corrosion attack on the steel, including oxidation and sulfidation with subsequent intergranular melting, was readily visible in the near-surface microstructure. A liquid eutectic mixture containing primarily iron, oxygen, and sulfur formed during this hot corrosion attack on the steel. This sulfur-rich liquid penetrated preferentially down grain boundaries of the steel, severely weakening the beam and making it susceptible to erosion. The eutectic temperature for this mixture strongly suggests that the temperatures in this region of the steel beam approached 1,000° C (1,800°F), which is substantially lower than would be expected for melting this steel.'' ''<ref>https://www.fema.gov/media-library-data/20130726-1512-20490-8452/403_apc.pdf</ref>

This sulfur-rich liquid penetrated preferentially down grain boundaries of the steel, severely weakening the beam and making it susceptible to erosion. The eutectic temperature for this mixture strongly suggests that the temperatures in this region of the steel beam approached 1,000° C (1,800°F), which is substantially lower than would be expected for melting this steel.''

 

''<ref>https://www.fema.gov/media-library-data/20130726-1512-20490-8452/403_apc.pdf</ref>

Aus dem Zitat geht klar hervor, dass nur ein Eutektikum seinen Schmelzpunkt überschritten hatte. Typisch für Eutektika sind – niedrige Schmelztemperaturen.  

Aus dem Zitat geht klar hervor, dass nur ein Eutektikum seinen Schmelzpunkt überschritten hatte. Typisch für Eutektika sind – niedrige Schmelztemperaturen.