【世界核新闻网站2015年7月21日报道】俄罗斯国家原子能集团公司(Rosatom)近日宣布,使用新型“超纯”镍合金制造反应堆压力容器,可将压力容器延寿至120年。在核电机组中,反应堆压力容器内装有反应堆堆芯,因此需要承受极高的温度和压力以及极强的放射性。与此同时,压力容器是反应堆中不能替换的为数不多的几个重型设备之一。俄原集团已为即将推出的VVER-TOI (Report from World Nuclear News Agency, July 21, 2015) Rosatom, the Russian state atomic energy company, announced today that the pressure vessels can be extended to 120 years by using new “ultra-pure” nickel alloys to manufacture reactor pressure vessels. In a nuclear power unit, the reactor pressure vessel contains the reactor core and therefore needs to withstand extremely high temperatures and pressures as well as extreme radioactivity. At the same time, pressure vessels are one of the few heavy equipment that can not be replaced in a reactor. Russian original group has been launched for the VVER-TOI