Molybdenum News Center

TZM Molybdenum Alloy In Divertor Water Coolant

Load controlled low cycle fatigue (LCF) tests on TZM molybdenum alloy have been conducted up to specimen rupture, using two triangular load waveforms of 17 and 20 kN amplitudes.

And in high temperature water (250°C), either deaerated or containing separate additions of oxygen (10−5 M/l), hydrogen (10−3 M/l) and hydrogen peroxide (10−4-10−5 M/l),

in order to simulate the coolant chemistry inside the divertor tubings during fusion reactor operation. Extensions of TZM fatigue lives,  were found to occur in all aqueous environments under the 17 kN cyclic load amplitude test, which induced a lower total strain range.


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