Semi-solid Processing of Alloys and Composites XII : selected peer reviewed papers from the 12th International Conference on Semi-Solid Precessing of Alloys and Composites (S2P 201... by International Conference on Semi-Solid Precessing of Alloys and Composites (S2P 2012) (12th : 2012 : Cape Town, South Africa), Moller, Heinrich, editor, Govender, Gonasagren, editor