随着全球化进程的深入,国际化高水平科研平台的建设成为提升城市科研竞争力的重要手段。本文旨在通过分析杭州在国际化科研平台建设方面的现状,总结存在的问题,提出进一步加强国际化高水平科研平台建设的路径建议。With the deepening o...随着全球化进程的深入,国际化高水平科研平台的建设成为提升城市科研竞争力的重要手段。本文旨在通过分析杭州在国际化科研平台建设方面的现状,总结存在的问题,提出进一步加强国际化高水平科研平台建设的路径建议。With the deepening of globalization, the construction of high-level international research platforms has become an important means to enhance the scientific research competitiveness of cities. This paper aims to analyze the current status of Hangzhou’s efforts in building such platforms, summarize the existing problems, and propose pathways to further strengthen the construction of high-level international research platforms.展开更多
In order to accurately evaluate the creep-fatigue lifetime of GH720Li superalloy,a lifetime prediction model was established,reflecting the interaction between creep damage and low-cycle fatigue damage.The creep-fatig...In order to accurately evaluate the creep-fatigue lifetime of GH720Li superalloy,a lifetime prediction model was established,reflecting the interaction between creep damage and low-cycle fatigue damage.The creep-fatigue lifetime prediction results of GH720Li superalloy with an average grain size of 17.3μm were essentially within a scatter band of 2 times,indicating a strong agreement between the predicted lifetimes and experimental data.Then,considering that the grain size of the dual-property turbine disc decreases from the rim to the center,a grain-size-sensitive lifetime prediction model for creep-fatigue was established by introducing the ratio of grain boundary area.The improved model overcame the limitation of most traditional prediction methods,which failed to reflect the relationship between grain size and creep-fatigue lifetime.展开更多
文摘随着全球化进程的深入,国际化高水平科研平台的建设成为提升城市科研竞争力的重要手段。本文旨在通过分析杭州在国际化科研平台建设方面的现状,总结存在的问题,提出进一步加强国际化高水平科研平台建设的路径建议。With the deepening of globalization, the construction of high-level international research platforms has become an important means to enhance the scientific research competitiveness of cities. This paper aims to analyze the current status of Hangzhou’s efforts in building such platforms, summarize the existing problems, and propose pathways to further strengthen the construction of high-level international research platforms.
基金financially supported by the National Natural Science Foundation of China(Nos.52306183,12272245,11832007,12172238)the Natural Science Foundation of Zhejiang Province,China(No.LQ23E050022)+1 种基金the Natural Science Foundation of Sichuan Province,China(Nos.2022NSFSC0324,2022JDJQ0011)the Open Project of Failure Mechanics and Engineering Disaster Prevention,Key Laboratory of Sichuan Province,China(No.FMEDP202305)。
文摘In order to accurately evaluate the creep-fatigue lifetime of GH720Li superalloy,a lifetime prediction model was established,reflecting the interaction between creep damage and low-cycle fatigue damage.The creep-fatigue lifetime prediction results of GH720Li superalloy with an average grain size of 17.3μm were essentially within a scatter band of 2 times,indicating a strong agreement between the predicted lifetimes and experimental data.Then,considering that the grain size of the dual-property turbine disc decreases from the rim to the center,a grain-size-sensitive lifetime prediction model for creep-fatigue was established by introducing the ratio of grain boundary area.The improved model overcame the limitation of most traditional prediction methods,which failed to reflect the relationship between grain size and creep-fatigue lifetime.
