Influence of Aging Treatment on Precipitation Behavior of η Phase in Ni-Co-Cr Alloy

作     者：WAN Wen-juan HAN Guang-wei DENG Bo 

作者机构：Department of High Temperature Materials Research Central Iron and Steel Research Institute Beijing 100081 China 

出 版 物：《Journal of Iron and Steel Research International》 (国际钢铁研究杂志)

年 卷 期：2010年第17卷第1期

页      面：64-69,78页

核心收录：

学科分类：080503[工学-材料加工工程] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 080201[工学-机械制造及其自动化] 

主　　题：precipitation η phase aging 

摘      要：The influence of aging treatment on precipitation behavior of η phase in a new Ni-Co-Cr fastener superalloy, AEREX350, was investigated by means of optical microscopy, scanning electron microscopy （SEM） and transmission electron microscopy （TEM）. The precipitation behavior of η phase with two kinds of morphologies in this material was found to be sensitive to the temperature and time of aging treatment. Time-temperature-transformation curves of these two η phase were achieved. Furthermore, diffraction patterns revealed the semi-coherent orientation relationship between η phase and γ matrix. This approach may be used to optimize the microstructure of the alloy for excellent mechanical properties.