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；溶质分布；温度分布 中图分类号:TG402；TG113.12 文献标志码:A Simulation of dendritic growth and solute concentration distribution during...) Abstract: Based on the diffusive interface model of dendritic growth, a new model of dendrite growth and solute concentration distribution of Fe-0.04%C (mass fraction) alloy was developed......
Impurity Segregation at TGO/Bondcoat Interfaces and Its Effect on TGO Adherence () 摘要:Impurity segregation at the interfaces between thermally grown aluminum oxide and a few coatings deposited... to the interface chemistry, particular its sulfur level. Results show strong relationship between sulfur segregation and the alloy substrate composition. This relationship is discussed in terms of the effects......
低倍观察时呈现灰黑色. 关键词:钛合金；偏析行为；热处理；显微组织 中图分类号:TG146.2+3 文献标志码:A Segregation behavior and prevention measures of beta... to study the segregation behavior of the β titanium alloy which possesses high molybdenum content. The results show that, the black spots in the ingot and rolling bar from 1/2 radius to the central regions......
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Effect of Casting Modulus on Microstructure and Segregation in K441 Superalloy CastingWeiguo Jiang, Jiasheng Dong, Li Wang and Langhong Lou Institute of Metal Research, Chinese Academy of Sciences... process. The microstructure has been observed by optical microscopy (OM) and scanning electron microscopy (SEM). The micro-segregation was tested by energy dispersive spectroscopy (EDS) and the macro......
Segregation of Phosphorus and Precipitation of MNP-Type Phosphide at the Grain Boundary of IN706 SuperalloySha Zhang1,2,Linjie Huang1,Anwen Zhang1,Lianxu Yu1,Xin Xin1,Wenru Sun1,Xiaofeng Sun11...">The effect of phosphorus content and heat treatment on the segregation of phosphorus and precipitation of phosphide at the grain boundary of IN706 alloy has been investigated. The phosphide had......
Segregation behaviors of Sc and unique primary Al3Sc in Al-Sc alloys prepared by molten salt electrolysisXuan Liu,Jilai Xue,Zhichao Guo,Cheng ZhangSchool of Metallurgical and Ecological Engineering... alloys prepared by molten salt electrolysis. The alloys contain 0.23–1.38 wt%Sc where Sc segregation is observed. It is found that a high current density and long electrolysis time are in favor of high......
Nonlinear current-voltage characteristics originated from phase segregation and micro-cracks in polycrystalline La0.67Ba0.33MnO3崔益民,刘伟,潘晖Key Laboratory of Micro-Nano Measurement-Manipulation... time, segregation of impurity phase and micro-cracks were found on the surfaces of the 100 h annealed samples, which was testified to be Ba ion impurity. Analysis showed that the changes of electronic......
Nonlinear current-voltage characteristics originated from phase segregation and micro-cracks in polycrystalline La0.67Ba0.33MnO3崔益民,刘伟,潘晖Key Laboratory of Micro-Nano Measurement-Manipulation... time, segregation of impurity phase and micro-cracks were found on the surfaces of the 100 h annealed samples, which was testified to be Ba ion impurity. Analysis showed that the changes of electronic......
Al2O3f/Al-4%Cu合金复合材料凝固偏析研究 魏衍广1,刘小梅2,靖青秀1,刘政3,朱应禄1 (1.南方冶金学院材料与化学工程学院,江西,赣州,341000;2.南方冶金学院机电工程学院,江西,赣州,341000;3.南方冶金学院教务处,江西,赣州,341000) 摘要:利用挤压铸造制备了Al2O3f/Al-4%Cu合金复合材料,研究了复合材料的凝固偏析.研究结果表明,在复合材料的凝固末期,由于选择结晶,剩余液相中的溶质变化导致基体合金类型的改变,最终凝固偏析主要产生在纤维/基体界面上.偏析对材料的组织结构和性能的影响可能是双重的. 关键词:复合材料; 凝固偏析; 选择结晶; composite; segregation at interface; selecting crystallization; [全文内容正在添加中] ......
