Effect of Die Wall Lubrication on High Velocity Compaction Behavior and Sintering Properties of Fe-Based PM Alloy

• Autorzy: Liu Zili , Li Dong , Liu Xiqin , Li Haohao , Huang Xin , Tang Zhihao , Zou Yuwen

Identyfikatory

DOI

10.24425/amm.2020.132806

• Języki publikacji: EN

Abstrakty

EN

Fe-based PM alloy powder of Fe-2.5Ni-0.5Mo-2Cu-0.4C was pressed by high velocity compaction combined with die wall lubrication, and the effect of die wall lubrication on high velocity compaction behavior and sintering properties of the Fe-based PM alloy were studied. The results indicate that the impact force, green density, sintered density of samples increase with the augment of the impact velocity and die wall lubrication. Compared with that without die wall lubrication, the green density and sintered density of the sample with die wall lubrication are about 0.07-0.12 g/cm³ and 0.08~0.11 g/cm³ higher at the same impact velocity, respectively, while the ejection force of the die wall lubricated sample is much smaller, and reduced about 26%~36%. The green compact with die wall lubrication has much fewer porosity than that without die wall lubrication, and more mechanical bonding and cold welding regions are observed. The sintered samples mainly consists of gray pearlite and white ferrite, and more pearlite is observed in the sintered sample with die wall lubrication.

Słowa kluczowe

EN

high velocity compaction; die wall lubrication; green density; impact force; cold welding

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 2
• Strony: 677--684
• Opis fizyczny: Bibliogr. 19 poz., fot., rys., tab., wzory

Twórcy

autor

Liu Zili

• Nanjing University of Aeronautics and Astronautics, College of Material Science & Technology Nanjing 210016, Peoples Republic Of China
• Jiangsu Automobile Powder Metallurgy Engineering Technology Research Center, Changshu 215534, Peoples Republic of China

autor

Li Dong

• Nanjing University of Aeronautics and Astronautics, College of Material Science & Technology Nanjing 210016, Peoples Republic Of China

autor

Liu Xiqin

• Nanjing University of Aeronautics and Astronautics, College of Material Science & Technology Nanjing 210016, Peoples Republic Of China
• Jiangsu Automobile Powder Metallurgy Engineering Technology Research Center, Changshu 215534, Peoples Republic of China

autor

Li Haohao

• Nanjing University of Aeronautics and Astronautics, College of Material Science & Technology Nanjing 210016, Peoples Republic Of China

autor

Huang Xin

• Nanjing University of Aeronautics and Astronautics, College of Material Science & Technology Nanjing 210016, Peoples Republic Of China

autor

Tang Zhihao

• Nanjing University of Aeronautics and Astronautics, College of Material Science & Technology Nanjing 210016, Peoples Republic Of China

autor

Zou Yuwen

• Jiangsu Automobile Powder Metallurgy Engineering Technology Research Center, Changshu 215534, Peoples Republic of China
• Changshu Huade Powder Metallurgy Co., Ltd, Changshu 215534, Peoples Republic of China

Bibliografia

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Uwagi

EN

1. This study is financially supported by Enterprises Postdoctoral Program of 2018 Jiangsu Province’s Double Creative Plan, China Postdoctoral Science Foundation funded project (Grant No. 2018M630555), Suzhou City Industrial Technology Innovation Project (Grant No. SGC201539), and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).