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Effects of heat treatment on microstructures and mechanical properties of GH4169/K418 functionally graded material fabricated by laser melting deposition
Luo, Y. W.1; Ma, T.1; Shao, W. W.1; Zhang, G. P.2; Zhang, B.1
Corresponding AuthorZhang, G. P.(gpzhang@imr.ac.cn) ; Zhang, B.(zhangb@atm.neu.edu.cn)
2021-07-21
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume821Pages:11
AbstractBlade-Integrated Disk is a perspective one-piece design strategy of turbine engine components with high efficiency of air compression. In this work, a functionally graded material composed of GH4169 and K418 is processed by laser melting deposition technique, followed by suitable heat treatment to optimize the microstructures and mechanical properties. Microstructure characterization, tensile and small punch creep tests of the functionally graded GH4169/K418 specimens were conducted. It is found that the as-built functionally graded material exhibits the continuous microstructure and the gradual composition transition region without sharp interfaces and hot cracks. The tensile yield strength, ultimate strength and elongation of the graded specimens at fracture achieved 726 MPa, 1044 MPa and 13.2%, respectively after the specimens were heat-treated through homogenization at 1100 degrees C for 1.5 h, solution treatment at 980 degrees C for 1 h and standard double aging. The creep life of the GH4169/K418 graded specimens at 650 degrees C and 850 N was mainly affected by the microstructure formed at different build heights of the as-built and heat-treated specimens. The relationship between the microstructures and tensile as well as creep properties of the graded specimens is elucidated.
KeywordLaser melting deposition Functionally graded material Nickel-based superalloy Tensile properties Creep life
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Key R&D Program of China ; Fundamental Research Project of Shenyang National Laboratory for Materials Science
DOI10.1016/j.msea.2021.141601
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[51771207] ; National Key R&D Program of China[2017YFB0305800] ; Fundamental Research Project of Shenyang National Laboratory for Materials Science[L2019R18]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000672446200003
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160077
Collection中国科学院金属研究所
Corresponding AuthorZhang, G. P.; Zhang, B.
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Key Lab Anisotropy & Texture Mat, Minist Educ, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Luo, Y. W.,Ma, T.,Shao, W. W.,et al. Effects of heat treatment on microstructures and mechanical properties of GH4169/K418 functionally graded material fabricated by laser melting deposition[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,821:11.
APA Luo, Y. W.,Ma, T.,Shao, W. W.,Zhang, G. P.,&Zhang, B..(2021).Effects of heat treatment on microstructures and mechanical properties of GH4169/K418 functionally graded material fabricated by laser melting deposition.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,821,11.
MLA Luo, Y. W.,et al."Effects of heat treatment on microstructures and mechanical properties of GH4169/K418 functionally graded material fabricated by laser melting deposition".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 821(2021):11.
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