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Microstructural evolution and tensile properties of oxide dispersion strengthened Alloy 617 at elevated temperatures

文献类型：期刊论文

作者Chun, Y. B.1; Mao, X.2; Han, C. H.1; Jang, J.1
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2017-10-26
卷号706期号:无页码:161-171
关键词Oxide Dispersion Strengthened Alloys Carbides Grain Growth Yield Strength
DOI10.1016/j.msea.2017.09.009
文献子类Article
英文摘要This study investigated evolution of the microstructure of oxide dispersion strengthened Alloy 617 with annealing temperature. A mixture of prealloyed Alloy 617 and Y2O3 powders was mechanically alloyed and consolidated by hot-extrusion at 1100 degrees C. Hot extrusion developed a submicron-sized grain structure with M23C6 carbides and finely dispersed Al2O3 and Y2Ti2O7 oxides. The fine-grained structure was stable during subsequent annealing at temperatures up to 1250 degrees C. Further increase of annealing temperature to 1300 degrees C resulted in a significantly coarsened grain structure, which was coincident with the abrupt coarsening of oxides. M23C6 carbides in the as-extruded conditions were transformed to M7C3 carbides with complex shapes when annealed at 1200 degrees C, and their shapes changed to very coarse hexagonal prisms at 1250 degrees C, which was followed by the formation of eutectic M2C carbides at grain boundaries at 1300 degrees C. Tensile tests of the as-extruded ODS Alloy 617 showed that the yield strength decreased steeply at a transition temperature of around 600 degrees C, which can be attributed to diffusional creep along the grain boundaries.
WOS关键词CR-C ALLOY ; CARBIDE PRECIPITATION ; ELECTRON-MICROSCOPE ; FERRITIC STEELS ; STABILITY ; SUPERALLOY ; BEHAVIOR ; CREEP ; CHALLENGES ; PARTICLES
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000413284400018
资助机构Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17) ; Korea Atomic Energy Research Institute R D Program(527520-17)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33820]  
专题合肥物质科学研究院_中国科学院核能安全技术研究所
作者单位1.Korea Atom Energy Res Inst, Nucl Mat Dev Div, 989-111 Daedoek Daero, Yuseong 34057, Daejeon, South Korea
2.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Key Lab Neutron & Radiat Safety, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Chun, Y. B.,Mao, X.,Han, C. H.,et al. Microstructural evolution and tensile properties of oxide dispersion strengthened Alloy 617 at elevated temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,706(无):161-171.
APA Chun, Y. B.,Mao, X.,Han, C. H.,&Jang, J..(2017).Microstructural evolution and tensile properties of oxide dispersion strengthened Alloy 617 at elevated temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,706(无),161-171.
MLA Chun, Y. B.,et al."Microstructural evolution and tensile properties of oxide dispersion strengthened Alloy 617 at elevated temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 706.无(2017):161-171.

入库方式： OAI收割

来源：合肥物质科学研究院

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