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Solute atom migration in GH4169 superalloy under electrostatic fields
Alternative TitleSolute atom migration in GH4169 superalloy under electrostatic fields
Wang Yao1; Wang Lei1; Liu Yang1; Song Xiu1; Zhang Beijiang2; Du Jinhui2
2013
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume20Issue:12Pages:1176-1182
AbstractElectric field treatment (EFT) was applied on GH4169 alloy during aging at 500-800 degrees C to investigate the microstructure and property variation of the alloy under the action of EFT. The results demonstrate that the short-distance diffusion of Al, Ti, and Nb atoms can be accelerated by EFT, which results in the coarsening of gamma' and gamma '' phases. Meanwhile, lattice distortion can be caused by the segregation of Fe and Cr atoms, owing to the vacancy flows migrating toward the charged surfaces of the alloy. Therefore, the alloy is hardened by the application of EFT, even if the strength of the alloy is partly reduced, which is caused by precipitation coarsening.
Other AbstractElectric field treatment (EFT) was applied on GH4169 alloy during aging at 500-800℃ to investigate the microstructure and property variation of the alloy under the action of EFT. The results demonstrate that the short-distance diff usion of Al, Ti, and Nb atoms can be accelerated by EFT, which results in the coarsening of γ' and γ" phases. Meanwhile, lattice distortion can be caused by the segregation of Fe and Cr atoms, owing to the vacancy flows migrating toward the charged surfaces of the alloy. Therefore, the alloy is hardened by the application of EFT, even if the strength of the alloy is partly reduced, which is caused by precipitation coarsening.
KeywordEXTERNAL ELECTRIC-FIELD SUPERPLASTIC DEFORMATION MECHANICAL-PROPERTIES LI ALLOY AL MICROSTRUCTURE PRECIPITATION INCONEL-718 STEEL HARDENABILITY superalloys nickel alloys electric fields aging precipitation vacancies
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Major State Basic Research Development Program of China]
CSCD IDCSCD:5004220
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/153802
Collection中国科学院金属研究所
Affiliation1.中国科学院金属研究所
2.Cent Iron & Steel Res Institute, Dept High Temp Mat, Beijing 100081, Peoples R China
Recommended Citation
GB/T 7714
Wang Yao,Wang Lei,Liu Yang,et al. Solute atom migration in GH4169 superalloy under electrostatic fields[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2013,20(12):1176-1182.
APA Wang Yao,Wang Lei,Liu Yang,Song Xiu,Zhang Beijiang,&Du Jinhui.(2013).Solute atom migration in GH4169 superalloy under electrostatic fields.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,20(12),1176-1182.
MLA Wang Yao,et al."Solute atom migration in GH4169 superalloy under electrostatic fields".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 20.12(2013):1176-1182.
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