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Dynamic In-situ Study on Phase Transition of GH4169 Superalloy During Homogenization Process
Liu Yanmei1; Zhao Meilan2; Feng Hui3; Zhao Qingquan4; Sun Wenru3; Wang Tiegang1
Corresponding AuthorWang Tiegang(tgwang@tute.edu.cn)
2021-04-01
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume50Issue:4Pages:1334-1341
AbstractIn order to reveal the evolution of composition and microstructure of GH4169 alloy during the homogenization treatment, the alloy microstructures during heat treatment were in-situ observed by high temperature metallographic microscope. The particle size distribution of Laves phase in the alloy after cooling was analyzed by quantitative metallographic analysis. The distribution characteristics of Nb element in alloy before and after heat treatment were analyzed by EPMA. The results show that when the heating temperature of G1-14169 alloy rises to 1151 degrees C, the initial melting happens around the Laves phase. The particle number of Laves phase in GH4169 alloy increases after heat treatment at 1180 degrees C, the particle size of maximum Laves phase decreases significantly, and the proportion of small Laves phase in alloy increases slightly. At 1180 degrees C, there is a certain amount of liquid phase existing in GH4169 alloy, but the NbC phase undissolves. After heat treatment, the segregation of Nb element in the black area between the primary dendrites still exists, but the distribution of Nb element in the gamma phase dendrite becomes more uniform.
KeywordGH4169 superalloy homogenization in -situ observation laves
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000651535100029
PublisherNORTHWEST INST NONFERROUS METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160898
Collection中国科学院金属研究所
Corresponding AuthorWang Tiegang
Affiliation1.Tianjin Univ Technol & Educ, Tianjin Key Lab High Speed Cutting & Precis Machi, Tianjin 300222, Peoples R China
2.Tianjin Heavy Equipment Engn Res Co Ltd, Tianjin 300450, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
4.Tianjin Dezheng Technol Co Ltd, Tianjin 301718, Peoples R China
Recommended Citation
GB/T 7714
Liu Yanmei,Zhao Meilan,Feng Hui,et al. Dynamic In-situ Study on Phase Transition of GH4169 Superalloy During Homogenization Process[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(4):1334-1341.
APA Liu Yanmei,Zhao Meilan,Feng Hui,Zhao Qingquan,Sun Wenru,&Wang Tiegang.(2021).Dynamic In-situ Study on Phase Transition of GH4169 Superalloy During Homogenization Process.RARE METAL MATERIALS AND ENGINEERING,50(4),1334-1341.
MLA Liu Yanmei,et al."Dynamic In-situ Study on Phase Transition of GH4169 Superalloy During Homogenization Process".RARE METAL MATERIALS AND ENGINEERING 50.4(2021):1334-1341.
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