Seal arrangement for reducing the seal gaps within a rotary flow machine

A seal arrangement for reducing the seal gaps within a rotary flow machine, preferably an axial turbomachine,

• having rotor blades and guide vanes, which are respectively arranged in at least one rotor blade row and guide vane row and have respective blade/vane roots (2, 3) which protrude into fastening contours within the rotor blade and guide vane rows,
• the blade/vane roots (2, 3) having a respective platform (7, 8, 21, 31),
• a sealing element (4) in plastically deformable material being provided between at least two platforms (7, 8, 21, 31) of adjacent blade/vane roots (2, 3) along a rotor blade row or guide vane row or between a platform (7, 8, 21, 31) of a blade/vane root (2, 3) of a rotor blade or guide vane and a rotary flow machine component directly adjoining the platform (7, 8, 21, 31).
• the sealing element (4) being firmly connected to one platform (7, 8, 21, 31) at least and having a thickness protruding from the surface of the platform (7, 8, 21, 31),
• characterized in that
• the two adjacent platforms (7, 8, 21, 31) or the platform (7, 8, 21, 31) and the component directly adjoining the platform (7, 8, 21, 31) enclose a cold gap sc in the cold condition and a hot gap sw in the hot condition during operation of the rotary flow machine.