LINEAR HYDROGEN-MATERIAL-CONTAINING AMPOULE TEST PIECE AND A TENSION TESTING METHOD USING THE SAME

摘要

Disclosed is a linear hydrogen-material-containing ampoule test piece. The linear hydrogen-material-containing ampoule test piece comprises: a feeding part through which hydrogen gas is injected; an ampoule body which has a hollow space on the inside, and on one end of which is formed a holding part that is assembled together with the feeding part and on the other end of which is formed a securing part with a predetermined gap from the holding part; a plurality of thin metal wires which are inserted into the hollow space, and on one end of which is formed a latching tube such that they are secured on the inside of the holding part and on the other end of which is formed a latching part that widens such that they are secured on the inside of the securing part; and a stopper part which is assembled onto the securing part and seals in the injected hydrogen gas. The present invention allows measurement of hydrogen damage in situ in the same way as with an interdisciplinary environmental mechanical testing system in which mechanical testing is carried out in an autoclave, and, in particular, the tensile deformation behaviour of the thin metal wires can be analysed by eliminating just the apparent tensile properties of the linear hydrogen-material-containing ampoule test piece from the tensile results for the linear hydrogen-material-containing ampoule test piece and the thin metal wires mounted in the device.