Institute for Metallurgy, Technical University Clausthal, Robert-Koch-Str. 42, D-38678 Clausthal-Zellerfeld, Germanyb Berninghauser Str. 34, D-58256 Ennepetal, Germanyc Fritz Winter Eisengiesserei, Postfach 1460, D-35254 Stadtallendorf, Germany ...