Method and apparatus for testing and evaluating of machine components under simulated in - situ thermal operating conditions.

摘要

A method and apparatus (fig. 1) is described, the testing and the evaluation of components of industrial machines, in particular gas turbines engine components, under simulated thermal in - situ - operating conditions, in order to implement new components - designs and to evaluate the repair method effectively. A sample - component / a sample - part (100), in a test chamber (200) placed in position, heated and cooled in cycles (140), in this case monitors (110), in order to transmit information via the initiation and propagation of a crack in the component structure is to obtain. Information is to the number of the just mentioned - and cooling cycles, which the component is up to the tear initiation can withstand, and information, the point on the speed of propagation, are obtained (240) and compared by means of several heating-up - cooling cycles, in order to evaluate the components and repair method. In a example - implementation, the component during cyclic heating - cooling to spontaneous emission is monitored, and for the wave shape of the sound emission data are recorded and analyzed (110), around the tear initiation and / or - propagation to determine.