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Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot
Wang, Yao1,2; Wang, Junsong3; Dong, Jiasheng1; Li, Aimin4; Li, Zhijun5; Xie, Guang1,2; Lou, Langhong1
Corresponding AuthorDong, Jiasheng(djs@imr.ac.cn)
2018-12-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume34Issue:12Pages:2439-2446
AbstractDeformation characteristics and range of optimized hot working parameters of a 6.5 tons GH3535 super-alloy ingot with an average columnar grain size of over 1 mm in diameter were investigated. Axial compression experiments were performed in temperature range of 900-1240 degrees C and strain rate range of 0.001-30 s(-1) at a total strain of 0.8. The hot deformation activation energy of the experimental GH3535 alloy is calculated to be 483.22 kJ/mol. Furthermore, the deformation constitutive equation is established by the peak stresses obtained from the stress-strain curves under various conditions. The hot working window of the alloy ingot at a strain of 0.8 can be preliminarily discussed based on the deformed microstructures and processing maps. The optimized hot working window was thus determined at the strain of 0.95 for 6.5 tons GH3535 alloy ingot by the supplementary compression tests. A large-size GH3535 superalloy ring with a dimension of Phi 3010 mm x 410 mm was ultimately manufactured. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordNi-base superalloy Dynamic recrystallization Hot working Large-tonnage ingot Processing map
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences
DOI10.1016/j.jmst.2018.04.001
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA02004210]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000443274500029
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129234
Collection中国科学院金属研究所
Corresponding AuthorDong, Jiasheng
Affiliation1.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
3.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
4.Fushun Special Steel Shares Co Ltd, Ctr Technol, Fushun 113001, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Appl Phys, Thorium Molten Salts Reactor Ctr, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yao,Wang, Junsong,Dong, Jiasheng,et al. Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(12):2439-2446.
APA Wang, Yao.,Wang, Junsong.,Dong, Jiasheng.,Li, Aimin.,Li, Zhijun.,...&Lou, Langhong.(2018).Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(12),2439-2446.
MLA Wang, Yao,et al."Hot deformation characteristics and hot working window of as-cast large-tonnage GH3535 superalloy ingot".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.12(2018):2439-2446.
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