Effect of Solution Temperature on the Microstructure and Mechanical Properties of Nickel Based Alloy CN 617

摘要：

　　Microstructure and strength of Ni-based alloy CN 617 after solution annealing temperature of 1125℃ to 1200℃ for 1 h followed by water cooling have been experimentally investigated by means of optical microscope,scanning electron microscope and transmission electron microscopy.The results show that the strength of CN 617 is inversely proportional to solution annealing temperature.The change of room temperature strength with increasing solution annealing temperature can be contributed to the total contribution of solution hardening,carbide hardening and grain boundaries strengthening.With increasing the solution annealing temperature from 1125℃ to 1200℃,the average grain size increases from 31 μm to 200 μm.The dislocation density decreases from 19 ×1013/m2 to 1.4 ×1013/m2.The volume fraction and size of primary carbide also dramatically decrease.

关键词： Alloy CN617 Solution Temperature Microstructure Mechanical Properties

作者: Zheng-zong Chen Zheng-dong Liu Han-sheng Bao

作者单位: Central Iron and Steel Research Institute No.76 Xueyuan Nanlu,Haidian Beijing,100081,China

会议类型: 国际会议

会议名称: Energy Materials 2014(第一届能源材料国际会议)

会议地点: 西安

会议语种:英文

页码: 315-320

在线出版日期: 2014-11-04（万方平台首次上网日期，不代表论文的发表时间）