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Microstructure and properties of A2017 alloy strips processed by a novel process by combining semisolid rolling, deep rolling, and heat treatment
Alternative TitleMicrostructure and properties of A2017 alloy strips processed by a novel process by combining semisolid rolling, deep rolling, and heat treatment
Guan Renguo; Wang Xiang; Zhao Zhanyong; Wang Weiwei; Cao Furong; Liu Chunming
2013
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume20Issue:8Pages:770-778
AbstractA novel short process for producing A2017 alloy strips with notable features of near net shape, saving energy, low cost, and high product performance was developed by combining semisolid rolling, deep rolling, and heat treatment. The microstructure and properties of the A2017 alloy strips were investigated by metallographic microscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, tensile testing, and hardness measurement. The cross-sectional microstructure of the A2017 alloy strips is mainly composed of near-spherical primary grains. Many eutectic phases CuAl2 formed along primary grain boundaries during semisolid rolling are crushed and broken into small particles. After solution treatment at 495A degrees C for 2 h the eutectic phases at grain boundaries have almost dissolved into the matrix. When the solution treatment time exceeds 2 h, grain coarsening happens. More and more grain interior phases precipitate with the aging time prolonging to 8 h. The precipitated particles are very small and distribute homogenously, and the tensile strength reaches its peak value. When the aging time is prolonged to 12 h, there is no obvious variation in the amount of precipitated phases, but the size and spacing of precipitated phases increase. The tensile strength of the A2017 alloy strips produced by the present method can reach 362.78 MPa, which is higher than that of the strips in the national standard of China.
Other AbstractA novel short process for producing A2017 alloy strips with notable features of near net shape, saving energy, low cost, and high product performance was developed by combining semisolid rolling, deep rolling, and heat treatment. The microstructure and properties of the A2017 alloy strips were investigated by metallographic microscopy, scanning electron microscopy, transmission electron microscopy, X-ray diffraction, tensile testing, and hardness measurement. The cross-sectional microstructure of the A2017 alloy strips is mainly composed of near-spherical primary grains. Many eutectic phases CuAl_2 formed along primary grain boundaries during semisolid rolling are crushed and broken into small particles. After solution treatment at 495°C for 2 h the eutectic phases at grain boundaries have almost dissolved into the matrix. When the solution treatment time exceeds 2 h, grain coarsening happens. More and more grain interior phases precipitate with the aging time prolonging to 8 h. The precipitated particles are very small and distribute homogenously, and the tensile strength reaches its peak value. When the aging time is prolonged to 12 h, there is no obvious variation in the amount of precipitated phases, but the size and spacing of precipitated phases increase. The tensile strength of the A2017 alloy strips produced by the present method can reach 362.78 MPa, which is higher than that of the strips in the national standard of China.
KeywordAZ31 MAGNESIUM ALLOY ALUMINUM-ALLOY AL-ALLOYS KINETICS DC aluminum alloys semisolid rolling heat treatment microstructure mechanical properties
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation for Outstanding Young Scholars of China] ; [National Natural Science Foundation of China] ; [Fok Ying Tong Education Foundation] ; [Basic Scientific Research Operation of Center Universities] ; [Major State Basic Research Development of China]
CSCD IDCSCD:4902923
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156668
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Guan Renguo,Wang Xiang,Zhao Zhanyong,et al. Microstructure and properties of A2017 alloy strips processed by a novel process by combining semisolid rolling, deep rolling, and heat treatment[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2013,20(8):770-778.
APA Guan Renguo,Wang Xiang,Zhao Zhanyong,Wang Weiwei,Cao Furong,&Liu Chunming.(2013).Microstructure and properties of A2017 alloy strips processed by a novel process by combining semisolid rolling, deep rolling, and heat treatment.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,20(8),770-778.
MLA Guan Renguo,et al."Microstructure and properties of A2017 alloy strips processed by a novel process by combining semisolid rolling, deep rolling, and heat treatment".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 20.8(2013):770-778.
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