Directionally solidified elongated component with elongated grains of differing widths

摘要

The elongated component comprises a longitudinal axis (1, 130) that has hardened stack crystalline longitudinal edges (11', 11") along the longitudinal axis. The longitudinal edge has different edge widths diagonally to the longitudinal axis. The component has a width. The edge width of the longitudinal edges is 20% of the width of the component at an edge of the component and the longitudinal edges have edge width of 5 mm at the edge of the component. The component gives a maximum edge width of the longitudinal edge and has maximum 60 longitudinal edges. The elongated component comprises a longitudinal axis (1, 130) that has hardened stack crystalline longitudinal edges (11', 11") along the longitudinal axis. The longitudinal edge has different edge widths diagonally to the longitudinal axis. The component has a width. The edge width of the longitudinal edges is 20% of the width of the component at an edge of the component and the longitudinal edges have edge width of 5 mm at the edge of the component. The component gives a maximum edge width of the longitudinal edge and has maximum 60 longitudinal edges which have an edge width of 5-40 mm at the edge vertically to the longitudinal axis. The component has a width of 100-250 mm vertical to the longitudinal axis. The component has length and width in the ratio of greater than 2, and length and thickness in the ratio of greater than 10. The component is surrounded by a medium in a flow direction (16) under 0[deg] vertically to the longitudinal axis. The widest or the cross sectionally largest longitudinal edges represent at the first streamed longitudinal edge. The longitudinal edges have an average edge width of 5 mm. The component is a casting part and consists of 90% of longitudinal edges. The component is formed as a turbine blade.