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Processing effects on the magnetic and mechanical properties of [FeCoNiAl.sub.0.2]Si.sub.0.2 high entropy alloy.(Report)

Zuo, Ting - Ting ; Ren, Song - Bo ; Liaw, Peter K. ; Zhang, Yong

International Journal of Minerals, Metallurgy, and Materials, June, 2013, Vol.20(6), p.549(7) [Tạp chí có phản biện]

ISSN: 1674-4799

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  • Nhan đề:
    Processing effects on the magnetic and mechanical properties of [FeCoNiAl.sub.0.2]Si.sub.0.2 high entropy alloy.(Report)
  • Tác giả: Zuo, Ting - Ting ; Ren, Song - Bo ; Liaw, Peter K. ; Zhang, Yong
  • Chủ đề: Magnetization -- Magnetic Properties ; Magnetization -- Mechanical Properties ; Alloys -- Magnetic Properties ; Alloys -- Mechanical Properties
  • Là 1 phần của: International Journal of Minerals, Metallurgy, and Materials, June, 2013, Vol.20(6), p.549(7)
  • Mô tả: Byline: Ting-ting Zuo (1), Song-bo Ren (2), Peter K. Liaw (3), Yong Zhang (1) Keywords: high entropy alloys; magnetic properties; mechanical properties; heat treatment Abstract: High entropy alloys with the composition of [FeCoNiAl.sub.0.2]Si.sub.0.2 were prepared by arc melting and induction melting, denoted by A1 and A2, respectively. The samples prepared by these two techniques have a face-centered cubic (FCC) phase structure and a typical dendrite morphology. The tensile yield strength and maximum strength of A2 samples are about 280 and 632 MPa, respectively. Moreover, the elongation can reach 41.7%. These two alloys prepared by the different methods possess the similar magnetic properties. The saturation magnetization and coercivity can reach 1.151 T and 1400 A/m for Al samples and 1.015 T and 1431 A/m for A2 samples, respectively. Phases in A2 samples do not change, which are heat treated at different temperatures, then quenched in water. Only the sample, which is heat treated at 600degC for 3 h and then furnace cooled, has a new phase precipitated. Besides, the coercivity decreases obviously at this temperature. Cold rolling and the subsequent heat treatment cannot improve the magnetic properties effectively. However, cold rolling plays an important role in improving the strength. Author Affiliation: (1) State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing, 100083, China (2) Beijing Hangke Engine Control System Science & Technology Co., Ltd., Beijing, 102200, China (3) Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN, 37996, USA Article History: Registration Date: 08/06/2013 Received Date: 13/08/2012 Accepted Date: 05/10/2012 Online Date: 11/06/2013
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 1674-4799

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