Towards a Cycle without Loss. Cobalt in the Aircraft Industry,
DEUTSCHE FORSCHUNGS- UND VERSUCHSANSTALT FUER LUFT- UND RAUMFAHRT E V STUTTGART (GERMANY F R)
Pagination or Media Count:
The flow cycle of cobalt in products used in the aircraft industry has been investigated. The manufacturing processes, uses and ultimate destinations of the materials containing cobalt superalloys, ultra-high strength steels, tool steels and special alloys have been quantitatively analyzed for the FRG. The ways in which cobalt is lost within the material cycle have been determined. Cobalt recovery rates for process scrap and obsolete scrap will be presented. It turns out that, ultimately, the dilution of cobalt in iron to a degree that it is of no value any more is the most important loss mechanism. A prime counter-action is improved scrap separation at all steps of the material cycle. The influence of no-scrap-technologies is discussed.