INFLUENCE OF HEAT TREATMENTS ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF OILFIELD USED ALLOY 925

摘要：

　　By means of a series of experiments and calculations,this paper studied the effects of heat treatments on microstructure and mechanical properties of alloy 925 with varied original precipitates and chemical compositions.The results show that: impact toughness is sensitive to residual grain boundary precipitations; prolonging the aging time at high temperature state can accelerate the precipitation rate of strengthening phase,so as to improve the strength; too long time aging at high temperature state can result in more grain boundary precipitations,which lead to a decline of the impact property.The heat treatment should be optimized based on original microstructure and element compositions.

关键词： Alloy 925 Heat treatment Microstructure Mechanical property Chemical

作者: Chao Tang Zhongnan Bi Jinhui Du Ji Zhang

作者单位: Central Iron and Steel Research Institute No.76,South Xueyuan Road,Haidian District 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: 679-685

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）