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Creep-fatigue crack growth behavior in GH4169 superalloy
Dianyin HU, Xiyuan WANG, Jianxing MAO, Rongqiao WANG
Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3, Pages 369-376 doi: 10.1007/s11465-018-0489-7
Keywords: crack growth rate creep-fatigue GH4169 superalloy CT specimen dwell time
CAO Jie, LUO Shimin, LIANG Lijian, LAI Jiaming, CHEN Shanming
Frontiers of Medicine 2007, Volume 1, Issue 3, Pages 287-293 doi: 10.1007/s11684-007-0055-x
Keywords: control function production surgical Complex
Zhihua ZHANG,Huichen YU,Chengli DONG
Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4, Pages 418-423 doi: 10.1007/s11465-015-0362-x
Low cycle fatigue tests were conducted on the single crystal nickel-based superalloy, DD6, with different
Keywords: life prediction single crystal superalloy low cycle fatigue (LCF) crystallographic orientation strain
Recent Advances in Physical Optics Research
Huang Zhixun
Strategic Study of CAE 2006, Volume 8, Issue 2, Pages 18-29
This paper focuses on a series of theoretical and experimental studies of the physical optics, such as the Goos-Hänchen shift, the FTIR phenomena, the negative refraction index, the superluminal experiments of THz rays, and the measurement of photon rest mass. It indicates that the evanescent waves phenomena are becoming more important in physical optics research recently. For example, superluminal propagation is a result of the evanescent waves, i. e. the evanescent fields. The possibility of a finite photon rest mass remains one of the most important issues in physical optics, as it has a bearing on a series of fundamental questions. A discussion on the present situation in this area is given. Finally, the history and advances of optical frequency standard and optical frequency measurements are given in the article.
Keywords: physical optics negative wave velocity negative refraction index GH shift evanescent waves photon rest
Grindability of high-temperature alloy with ceramic alumina wheels
ZHANG Hongxia, CHEN Wuyi, CHEN Zhitong
Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 139-145 doi: 10.1007/s11465-008-0040-3
Keywords: metallographic topography grinding GH2132 resistance decrease
Novel casting processes for single-crystal turbine blades of superalloys
Dexin MA
Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 3-16 doi: 10.1007/s11465-018-0475-0
Keywords: superalloy investment casting Bridgman process directional solidification single crystal turbine blade
A New Method for Strengthening Wrought Superalloys: micro-alloying with Phosphorus and Boron
Hu Zhuangqi,Sun Wenru,Song Hongwei
Strategic Study of CAE 2005, Volume 7, Issue 3, Pages 17-26
The strengthening effect of phosphorus and boron on wrought superalloys is reviewed and discussed. The addition of phosphorus and boron can prolong the rupture life of some wrought superalloys over 3 times, and lowers the constant creep rate by an order of magnitude. By micro-alloying with phosphorus and boron, alloys with extended rupture life are developed, the service temperature of IN718 alloy is enhanced, and the alloys which can be used for a long time at 700℃ with higher combined properties can be developed.
Keywords: wrought superalloy phosphorus boron micro-alloying
Wang Haizhou,Li Meiling,Zhuang Jingyun
Strategic Study of CAE 2011, Volume 13, Issue 10, Pages 19-27
The distribution of niobium on the vertical section of casting of GH169superalloy pneumatic plate wheel was studied by original position statistic distribution analysis techniquedetermine the homogeneity and statistic fitting degree of niobium in the vertical section of casting of GH169superalloy pneumatic plate wheel accurately for quality control.
Keywords: original position statistic distribution analysis superalloy pneumatic plate wheel niobium statistic
Shang Sui,Haosheng Li,Zuo Li,Xuan Zhao,Liang Ma,Jing Chen
Engineering 2022, Volume 16, Issue 9, Pages 239-246 doi: 10.1016/j.eng.2021.08.030
Keywords: Laser repair In situ laser heat treatment Inconel 718 alloy Laves phase
Zhengtao Gan, Hengyang Li, Sarah J. Wolff, Jennifer L. Bennett, Gregory Hyatt, Gregory J. Wagner, Jian Cao, Wing Kam Liu
Engineering 2019, Volume 5, Issue 4, Pages 730-735 doi: 10.1016/j.eng.2019.03.014
To design microstructure and microhardness in the additive manufacturing (AM) of nickel (Ni)-based superalloys, the present work develops a novel data-driven approach that combines physics-based models, experimental measurements, and a data-mining method. The simulation is based on a computational thermal-fluid dynamics (CtFD) model, which can obtain thermal behavior, solidification parameters such as cooling rate, and the dilution of solidified clad. Based on the computed thermal information, dendrite arm spacing and microhardness are estimated using well-tested mechanistic models. Experimental microstructure and microhardness are determined and compared with the simulated values for validation. To visualize process–structure–properties (PSP) linkages, the simulation and experimental datasets are input to a data-mining model—a self-organizing map (SOM). The design windows of the process parameters under multiple objectives can be obtained from the visualized maps. The proposed approaches can be utilized in AM and other data-intensive processes. Data-driven linkages between process, structure, and properties have the potential to benefit online process monitoring control in order to derive an ideal microstructure and mechanical properties.
Keywords: Data science Multiphysics modeling Self-organizing map Microstructure Microhardness Ni-based superalloy
Title Author Date Type Operation
Creep-fatigue crack growth behavior in GH4169 superalloy
Dianyin HU, Xiyuan WANG, Jianxing MAO, Rongqiao WANG
Journal Article
Effects of parenteral nutrition with and without GH on the GH/IGF-1 axis after hepatectomy in hepatocellular
CAO Jie, LUO Shimin, LIANG Lijian, LAI Jiaming, CHEN Shanming
Journal Article
LCF behavior and life prediction method of a single crystal nickel-based superalloy at high temperature
Zhihua ZHANG,Huichen YU,Chengli DONG
Journal Article
Grindability of high-temperature alloy with ceramic alumina wheels
ZHANG Hongxia, CHEN Wuyi, CHEN Zhitong
Journal Article
A New Method for Strengthening Wrought Superalloys: micro-alloying with Phosphorus and Boron
Hu Zhuangqi,Sun Wenru,Song Hongwei
Journal Article
Original position statistic distribution analysis characterization of niobium on the vertical section of casting of superalloypneumatic plate wheel
Wang Haizhou,Li Meiling,Zhuang Jingyun
Journal Article
Introduction of a New Method for Regulating Laves Phases in Inconel 718 Superalloy during a Laser-Repairing
Shang Sui,Haosheng Li,Zuo Li,Xuan Zhao,Liang Ma,Jing Chen
Journal Article