http://scholars.ntou.edu.tw/handle/123456789/4663
標題: | Effects of Simulated Microstructure on the Creep Rupture of the Modified 9Cr-1Mo Steel | 作者: | T. H. Hsiao T. C. Chen S. L. Jeng T. J. Chung L. W. Tsay |
關鍵字: | 9Cr-1Mo steel;creep rupture;heat-affected zone;post-weld heat treatment;simulated HAZ | 公開日期: | 十月-2016 | 卷: | 25 | 期: | 10 | 起(迄)頁: | 4317–4325 | 來源出版物: | Journal of Materials Engineering and Performance | 摘要: | Microstructures of the heat-affected zone (HAZ) of a Gr. 91 steel weld were simulated to evaluate their effects on the creep life of the weld at elevated temperatures. The Ac1 and Ac3 temperatures of the Gr. 91 steel were determined by a dilatometer to be at 867 and 907 °C, respectively. An infrared heating system was employed to heat the samples to 860 (STOT), 900 (ICHAZ) and 940 °C (FGHAZ) for 1 min, followed by cooling to room temperature. The simulated specimens were then subjected to conventional post-weld heat treatment (PWHT) at 750 °C/2 h. After the PWHT, the tempered ICHAZ specimen had a shortest creep life among the specimens tested at 650 °C/60 MPa. Moreover, the simulated specimen heated to 860 °C (STOT) was more likely to fracture at 615 °C/80 MPa than others. |
URI: | http://scholars.ntou.edu.tw/handle/123456789/4663 | ISSN: | 1059-9495 | DOI: | 10.1007/s11665-016-2270-6 |
顯示於: | 光電與材料科技學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。