Oxidation behaviour of the nickel-based superalloy DZ125 at 980℃

摘要：

　　The isothermal oxidation behaviour of the nickel-based supcralloy DZ125 was investigated at 980℃ and the oxide morphology was analysed by SEM/EDX.The oxidation curve can be divided into three periods-initial, transient and steady stages on the basis of distinction among layers that were formed correspondingly.The outer layer was composed of NiO whereas the intermediate layer mainly consisted of spinels and was accompanied with Ta-rich oxide.Alumina was observed at the inner continuous layer.However, the results indicated that the inner layer showed its formation preferably on the specimen surface.The oxide scales effect on growth mechanism was discussed.

关键词： Nickel-based superalloy oxidation alumina

作者: HU Yebing ZHANG Li CHENG Congqian ZHAO Pengtao GUO Guangping ZHAO Jie

作者单位: School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China Beijing Institute of Aeronautical Materials, Beijing 100095, China

会议类型: 国际会议

会议名称: The 9th China-Japan Bilateral Symposium on Hiigh Temperature Strength of Materials(第九届中日双边高温材料强度国际学术研讨会)

会议地点: 长沙

会议语种:英文

页码: 55-59

在线出版日期: 2016-10-16（万方平台首次上网日期，不代表论文的发表时间）