摘要
借助透射电镜研究了循环加热状态下铁基高温合金的相变过程,结果表明,实验合金在57℃到650℃之间循环热处理,当循环加热次数多于60次时,合金中析出有序相,该相的沉淀导致合金的硬化.
Under thermal cycling treatment,phase-transformation in iron-based superalloy is studied by TEM.The results,indicate:The superalloy isheated upto 650℃,hold for 3 minutes,then air-cooled,and that is repeated formany times.When thermal cycling treatment times is over 60 times,the disorder-order transformation is generated.Ordered domains precipitated results in harden-ing of the alloy.
关键词
循环热处理
铁基高温合金
有序相
thermal cycling
iron-based superalloy
ordered phase
