Effect of Heattreatment on the Microstructure and Properties of Cold-worked Inconel 740H Boiler Tubes

摘要：

　　The effect of the pre-aging heattreatment on microstructures,the hardness,tensile strength and creep properties of Inconel 740H ha been investigated.The carbides precipitated along the grain boundaries,and γ-Ni3(Al,Ti)was suppressed during the pre-aging at 850℃-1010℃.As the pre-aging temperature increased,the hardness and tensile strength decreased.The material with 11% strain and normal heattreatment showed shorter creep life than the non-strained one,the pre-aging heattreatment before the cold working and final aging restored the creep properties.

关键词： A-USC boiler Inconel 740H cold strain creep aging

作者: Zhou Rongcan Tang Liying Wang Bohan Hou Shufang Guo Yan

作者单位: Xian Thermal Power Research Institute Co.Ltd.136 Xingqing Road Xian,Shaanxi,710032,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: 279-285

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）