Because Helium is used as coolant in High Temperature Gas-cooled Reactor (HTGR), the change of tribological properties of HTGR structure component under Helium is a big problem.

• 摘要由于高温气冷堆采用氦气作为冷却剂，堆内构件在氦气下的摩擦学性能变化成为高温气冷堆必须研究的一个问题。