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Thermal Behavior and Microstructure Evolution of Titanium Alloy by Laser Deposition
Alternative TitleThermal Behavior and Microstructure Evolution of Titanium Alloy by Laser Deposition
Yang Guang; Song Haihao; Qin Lanyun; Bian Hongyou; Wang Wei; Ding Linlin
2016
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume45Issue:10Pages:2598-2604
AbstractIn order to analyze the effect of thermal behavior on microstructural evolution in laser deposition manufacturing process, a finite element model was constructed to simulate the temperature field distribution and thermal cycle characteristics. The simulation results show that any node in the substrate and the deposition layer experiences heating or cooling cyclically. And the macro and microstructure of the laser deposited specimen were investigated to determine the evolution of microstructural features in multi-pass deposition layers. The macro and microstructures exhibit epitaxial coarse columnar prior beta grains with basketweave or colony a lamella. The width of alpha lamella changes, and a lamella has basketweave Widmanstatten or colonies Widmanstatten morphology. The line scanning results by energy dispersive spectrometer (EDS) indicate that major alloy elements, Ti, Al, Zr, Mo and V, are distributed uniformly from the substrate to the deposited layer without fluctuation and segregation, suggesting that evolution of microstructure is not the result of segregation but of the heat history.
KeywordMECHANICAL-PROPERTIES TI-6AL-4V laser deposition manufacturing titanium alloy microstructural evolution temperature field thermal behavior
Indexed ByCSCD
Language英语
CSCD IDCSCD:5828772
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/149553
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Yang Guang,Song Haihao,Qin Lanyun,et al. Thermal Behavior and Microstructure Evolution of Titanium Alloy by Laser Deposition[J]. RARE METAL MATERIALS AND ENGINEERING,2016,45(10):2598-2604.
APA Yang Guang,Song Haihao,Qin Lanyun,Bian Hongyou,Wang Wei,&Ding Linlin.(2016).Thermal Behavior and Microstructure Evolution of Titanium Alloy by Laser Deposition.RARE METAL MATERIALS AND ENGINEERING,45(10),2598-2604.
MLA Yang Guang,et al."Thermal Behavior and Microstructure Evolution of Titanium Alloy by Laser Deposition".RARE METAL MATERIALS AND ENGINEERING 45.10(2016):2598-2604.
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