About us
The Cryogenic Fatigue Group will (1) elucidate fatigue crack growth behavior, crack opening and closure behavior, and their temperature dependence in cryogenic environments, mainly for titanium alloys, nickel alloys and stainless steels, with a focus on rocket engines and hydrogen supply chains. (2) To elucidate the effect of hydrogen on fatigue properties and fatigue crack growth behavior in a wide range of temperatures, considering the special environment of liquefied hydrogen or cryogenic hydrogen gas, together with the mechanism of the effect. This will provide industry with data that will contribute to the development and design of liquefied hydrogen-related equipment and rocket engines, thereby contributing to the realization of carbon neutrality. In addition, (3) to contribute to resource recycling, we will develop methods for the recycling (remanufacturing) and reliability evaluation of machine structural parts (gears, springs, and welded joints).
